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Lisi F, Mansour R, Cavallaro C, Alınç T, Porcu E, Ricupero M, Zappalà L, Desneux N, Biondi A. Sublethal effects of nine insecticides on Drosophila suzukii and its major pupal parasitoid Trichopria drosophilae. PEST MANAGEMENT SCIENCE 2023; 79:5003-5014. [PMID: 37548138 DOI: 10.1002/ps.7702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/20/2023] [Accepted: 08/05/2023] [Indexed: 08/08/2023]
Abstract
BACKGROUND Although the pupal parasitoid Trichopria drosophilae is used in conservative and augmentative biocontrol of Drosophila suzukii infestations, current pest management strategies mostly rely on multiple insecticide applications. In this context, the aim of the study was to investigate the baseline toxicity of nine insecticides on D. suzukii larvae and their multiple sublethal effects (LC10 ) on immature stages of the pest feeding on contaminated diet and T. drosophilae developing within the intoxicated host. RESULTS Chlorpyriphos and azadirachtin showed the lowest and the highest LC10 , the values of which were 9.78 × 1013 and 1.46 × 103 times lower than their recommended label field rate, respectively. Among tested insecticides, imidacloprid, malathion and dimethoate were the only treatments that did not affect the juvenile development time of D. suzukii, while spinosad and the organophosphates chlorpyriphos and dimethoate did not influence fly pupal size. No sublethal effects were recorded on T. drosophilae degree of infestation (DI) and juvenile development time. On the contrary, cyazypyr and dimethoate negatively affected the success of parasitism (SP) and the number of progeny of the pupal parasitoid, in association with malathion for the first parameter and spinosad for the fertility. Compared to the untreated control, more female progeny emerged following azadirachtin exposure, while dimethoate caused the opposite effect. Imidacloprid, lambda-cyhalothrin and spinetoram decreased hind tibia length of emerged parasitoids. CONCLUSION This study provides new insights on the (eco)toxicological profile of nine insecticides and new information needed to support the deployment of T. drosophilae in the field within the sustainable management techniques against D. suzukii. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Fabrizio Lisi
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
| | - Ramzi Mansour
- Section of Biological Sciences, University of Carthage, ISEP-BG La Soukra, Tunis, Tunisia
| | - Carmelo Cavallaro
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
| | - Tuğcan Alınç
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Palermo, Italy
| | - Emanuele Porcu
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
| | - Michele Ricupero
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
| | - Lucia Zappalà
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
| | | | - Antonio Biondi
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
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102
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Jales JT, Barbosa TM, Moreira VRF, Vasconcelos SD, de Paula Soares Rachetti V, Gama RA. Effects of Terbufos (Organophosphate) on Larval Behaviour of Two Forensically Important Diptera Species: Contributions for Entomotoxicology. NEOTROPICAL ENTOMOLOGY 2023; 52:1155-1164. [PMID: 37861966 DOI: 10.1007/s13744-023-01094-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 10/03/2023] [Indexed: 10/21/2023]
Abstract
Neurotoxicant compounds interfere with the behaviour and biology of insects, significantly altering their locomotion patterns. However, little is known about the effect of organophosphates, neurotoxicants for agricultural, domestic and industrial use, on the larval movement of necrophagous flies, although being responsible for frequent cases of poisoning and accidental or intentional deaths. Thus, we aimed to study the influence of Terbufos (organophosphate) on the activity and mobility patterns of Lucilia eximia (Wiedemann 1819) (Calliphoridae) and Peckia (Peckia) chrysostoma (Wiedemann 1830) (Sarcophagidae) immatures collected from rat carcasses intoxicated with 5, 10 or 20 mg/kg of Terbufos, to evaluate (i) peristaltic movements and body contractions, and (ii) distance and shape of the trajectory travelled by the larva. Behavioural parameters were analysed in loco and through videos. We observed that the presence of Terbufos altered poisoned larvae's activity and body mobility in both taxon and dose-dependent manner. Lucilia eximia larvae were more active, with greater frequency of body movements and lateral contractions when intoxicated with high and intermediate doses of Terbufos. On the other hand, P. (P.) chrysostoma immatures were less active, with fewer body and lateral contractions when intoxicated with the high dose of the compound. This work experimentally demonstrates that the presence of Terbufos can alters the mobility and movement of intoxicated necrophagous Diptera, essential components of the cadaveric fauna.
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Affiliation(s)
- Jéssica Teixeira Jales
- Laboratory of Insect and Vectors, Department of Microbiology and Parasitology, Biosciences Center, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil.
| | - Taciano Moura Barbosa
- Laboratory of Insect and Vectors, Department of Microbiology and Parasitology, Biosciences Center, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Victor Ramon Firmo Moreira
- Robotics and Machine Learning Team, Department of Mechanical Engineering, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Simão Dias Vasconcelos
- Laboratory of Insects of Forensic Importance, Department of Zoology, Federal University of Pernambuco, Recife, PE, Brazil
| | | | - Renata Antonaci Gama
- Laboratory of Insect and Vectors, Department of Microbiology and Parasitology, Biosciences Center, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
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103
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Lin J, Yue G, Xiao K, Yang D, Hao X, Zheng M, Cai P, Ji Q. Effects of low-concentration spinetoram wax-based bait stations on Bactrocera dorsalis (Diptera: Tephritidae). PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 197:105705. [PMID: 38072558 DOI: 10.1016/j.pestbp.2023.105705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 11/17/2023] [Accepted: 11/17/2023] [Indexed: 12/18/2023]
Abstract
Spinetoram wax-based bait station (SWBB) is a maintenance-free, long-lasting, and eco-friendly management measure for Bactrocera dorsalis. However, the impacts of low-concentration spinetoram on B. dorsalis have not yet been determined. Therefore, our study aimed to determine the impacts of low-concentration SWBBs on the biology, demographics, detoxifying enzymes, and gut microorganisms of B. dorsalis. Our results showed that low-concentration SWBBs posed dose-dependent effects on the lifespan and fecundity of B. dorsalis adults. Both the LC10 and LC30 treatments significantly reduced the fecundity, while only the latter led to significant deleterious effects on the longevity of adults. Transgenerational bioassays revealed that exposure to LC30 significantly affected the development period of larvae and pupae as well as the livability of pre-adult stage of the progeny. However, except for the ovipositional period, no significant effects on the biological traits of F1 adults were observed. In terms of the F1 demographic parameters, dose-dependent effects were observed. Moreover, both the LC10 and LC30 treatments significantly extended the mean generation time, while the latter remarkably decreased the finite and intrinsic rates. Additionally, the significant induction of CarE activity by the LC10 and LC30 treatment was maintained until 24 and 48 h respectively. The CYP450 O-deethylation activity in the LC30 treatment was significantly enhanced at 24 and 48 h intervals when compared to the control. Regarding the intestinal bacterial community, after B. dorsalis adults were exposed to low-concentration SWBBs, the relative abundances of Providencia and Vagococcus were significantly increased, whereas those of Lactococcus and Brachyspira experienced a significant decrease. The obtained results are expected to serve as a foundation for the application of spinetoram in "lure-and-kill" strategies against B. dorsalis.
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Affiliation(s)
- Jia Lin
- Institute of Biological control, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fuzhou 350002, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou 350002, China
| | - Guoqing Yue
- Institute of Biological control, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fuzhou 350002, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou 350002, China
| | - Kang Xiao
- Institute of Biological control, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fuzhou 350002, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou 350002, China
| | - Deqing Yang
- Institute of Biological control, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fuzhou 350002, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou 350002, China
| | - Xuxing Hao
- Institute of Biological control, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fuzhou 350002, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou 350002, China
| | - Minlin Zheng
- Institute of Biological control, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fuzhou 350002, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou 350002, China
| | - Pumo Cai
- Institute of Biological control, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fuzhou 350002, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou 350002, China; Department of Horticulture, College of Tea and Food Science, Wuyi University, Wuyishan 354300, China.
| | - Qing'e Ji
- Institute of Biological control, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fuzhou 350002, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou 350002, China.
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Ahmad S, Jamil M, Jaworski CC, Wu Y, Palma-Onetto V, Lyu B, Luo Y. Knockdown of the ecdysone receptor disrupts development and causes mortality in the melon fly, Zeugodacus cucurbitae. INSECT MOLECULAR BIOLOGY 2023; 32:738-747. [PMID: 37646607 DOI: 10.1111/imb.12867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 08/11/2023] [Indexed: 09/01/2023]
Abstract
Cucurbits are important economic plants that are attacked by numerous pests, among which the melon fly Zeugodacus cucurbitae is extremely problematic. New sustainable pest control strategies are necessary to replace chemical insecticides that are harmful to the environment, human health and nontarget species. The RNA interference (RNAi) technology is one of the most promising tools due to high efficiency and species specificity. We developed an RNAi strategy targeting the ecdysone receptor (ECR) of Z. cucurbitae, which plays an important role in moulting and reproduction. We identified, described and isolated the ECR gene of Z. cucurbitae and measured its expression pattern across developmental stages and tissues. ZcECR knockdown via dsZcECR ingestion caused a significant larval mortality and abnormal phenotypes in pupae and adults. About 68% of larvae fed with a dsZcECR-treated diet failed to enter the pupal stage and died. In addition, ZcECR knockdown dramatically reduced pupal weight (by 3.24 mg on average) and fecundity (by about 23%). RNAi targeting the ECR gene is therefore a promising method to control Z. cucurbitae, paving the way for the development of novel sustainable and highly specific control strategies.
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Affiliation(s)
- Shakil Ahmad
- School of Plant Protection, Department of Pesticide Science, Hainan University, Haikou, Hainan, China
| | - Momana Jamil
- School of Plant Protection, Department of Pesticide Science, Hainan University, Haikou, Hainan, China
| | | | - Yuejie Wu
- School of Plant Protection, Department of Pesticide Science, Hainan University, Haikou, Hainan, China
| | - Valeria Palma-Onetto
- Departamento de Química Ambiental, Facultad de Ciencias, Universidad Católica de la Santísima Concepción, Concepción, Chile
| | - Baoqian Lyu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou, China
| | - Yanping Luo
- School of Plant Protection, Department of Pesticide Science, Hainan University, Haikou, Hainan, China
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105
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Xiao X, Haas J, Nauen R. Functional orthologs of honeybee CYP6AQ1 in stingless bees degrade the butenolide insecticide flupyradifurone. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 268:115719. [PMID: 37992638 DOI: 10.1016/j.ecoenv.2023.115719] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 11/15/2023] [Accepted: 11/19/2023] [Indexed: 11/24/2023]
Abstract
Flupyradifurone (FPF), a novel butenolide insecticide binding to nicotinic acetylcholine receptors (nAChRs), has been shown to be less acutely toxic to western honey bees (Apis mellifera) than other insecticides such as neonicotinoids sharing the same target-site. A previous study revealed that this is due to enhanced oxidative metabolism of FPF, mediated by three cytochrome P450 monooxygenases (P450s), including CYP6AQ1. Therefore, we followed a toxicogenomics approach and investigated the potential role of functional CYP6AQ1 orthologs in FPF metabolism from eight different bee species, including stingless bees (Tribe: Meliponini). We conducted a phylogenetic analysis on four stingless bee species, including Frieseomelitta varia, Heterotrigona itama, Melipona quadrifasciata and Tetragonula carbonaria to identify CYP6AQ1-like functional orthologs. Three non-Meliponini, but tropical bee species, i.e., Ammobates syriacus, Euglossa dilemma and Megalopta genalis were analyzed as well. We identified candidate P450s in all (neo)tropical species with greater than 61% and 67% predicted protein sequence identities when compared to A. mellifera CYP6AQ1 and Bombus terrestris CYP6AQ26, respectively. Heterologous expression in High Five insect cells of these functional orthologs revealed a common coumarin substrate profile and a preference for the O-debenzylation of bulkier substrates. Competition assays using the fluorescent probe substrate 7-benzyloxymethoxy-4-trifluoromethylcoumarin (BOMFC) with these enzymes indicated inhibition of BOMFC metabolism by increasing concentrations of FPF. Furthermore, UPLC-MS/MS analysis revealed the capacity of all CYP6AQ1-like orthologs to metabolize FPF by hydroxylation in vitro at various levels, indicating a conserved FPF detoxification potential in different (neo)tropical bee species including Meliponini. This research, employing a toxicogenomics approach, provides important insights into the potential of stingless and other tropical bee species to detoxify FPF, and highlights the significance of investigating the detoxification mechanisms of insecticides in non-Apis bee species by molecular tools to inform risk assessment and conservation efforts.
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Affiliation(s)
- Xingzhi Xiao
- Institute of Crop Science and Resource Conservation, University of Bonn, 53115 Bonn, Germany; Bayer AG, Crop Science Division, R&D, D-40789 Monheim, Germany
| | - Julian Haas
- Bayer AG, Crop Science Division, R&D, D-40789 Monheim, Germany
| | - Ralf Nauen
- Bayer AG, Crop Science Division, R&D, D-40789 Monheim, Germany.
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106
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Guo J, An J, Chang H, Li Y, Dang Z, Wu C, Gao Z. The Lethal and Sublethal Effects of Lambda-Cyhalothrin and Emamectin Benzoate on the Soybean Pest Riptortus pedestris (Fabricius). TOXICS 2023; 11:971. [PMID: 38133372 PMCID: PMC10747274 DOI: 10.3390/toxics11120971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/24/2023] [Accepted: 11/27/2023] [Indexed: 12/23/2023]
Abstract
Riptortus pedestris (Fabricius, 1775) (Hemiptera: Alydidae) is a major soybean pest in East Asia that can cause soybean staygreen syndrome. To date, no insecticides have been registered for the control of R. pedestris in China, and these insects are primarily controlled in the field through the application of broad-spectrum insecticides including lambda-cyhalothrin (LCT) and emamectin benzoate (EMB). Here, the lethal and sublethal effects of LCT and EMB on R. pedestris were comprehensively evaluated. LCT and EMB were both found to exhibit high levels of toxicity and concentration-dependent repellent effects for R. pedestris. The exposure of third instar nymphs from the F0 generation to LC30 concentrations of LCT and EMB resulted in a significant increase in the duration of nymph development and adult pre-oviposition period (APOP), together with reductions in fifth instar nymph and adult body weight, longevity, oviposition days, fecundity, vitellarium length, lateral oviduct diameter, and vitellogenin (Vg) gene expression as compared to control treatment. Strikingly, these suppressive effects were transmitted to the F1 generation, which similarly experienced the prolongation of preadult development and the preoviposition period (TPOP). Relative to control-treated populations, the F1 generation for these insecticide-treated groups also exhibited significant decreases in population parameter values. Overall, these data offer new insight into the impact that LCT and EMB treatment can have on R. pedestris, providing a valuable foundation for the application of these pesticides in the context of integrated pest management strategies aimed at soybean crop preservation.
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Affiliation(s)
- Jianglong Guo
- Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture, Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences, Baoding 071000, China; (J.G.); (J.A.); (Y.L.); (Z.D.)
| | - Jingjie An
- Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture, Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences, Baoding 071000, China; (J.G.); (J.A.); (Y.L.); (Z.D.)
| | - Hong Chang
- Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China;
| | - Yaofa Li
- Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture, Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences, Baoding 071000, China; (J.G.); (J.A.); (Y.L.); (Z.D.)
| | - Zhihong Dang
- Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture, Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences, Baoding 071000, China; (J.G.); (J.A.); (Y.L.); (Z.D.)
| | - Chi Wu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
| | - Zhanlin Gao
- Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture, Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences, Baoding 071000, China; (J.G.); (J.A.); (Y.L.); (Z.D.)
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Ji X, Jiang YT, Guo TX, Zhang P, Li XA, Kong FB, Zhang BZ. Sublethal effects of imidacloprid on the fitness of two species of wheat aphids, Schizaphis graminum (R.) and Rhopalosiphum padi (L.). PLoS One 2023; 18:e0294877. [PMID: 38011174 PMCID: PMC10681248 DOI: 10.1371/journal.pone.0294877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 11/09/2023] [Indexed: 11/29/2023] Open
Abstract
Imidacloprid is a neonicotinoid insecticide that efficiently controls piercing-sucking mouthparts pests. However, the impact of low lethal concentration of imidacloprid on key demographic parameters of wheat aphids, Schizaphis graminum (R.) and Rhopalosiphum padi (L.) has been scarcely studied. In this study, we used the age stage, two-sex life table approach to investigate the sublethal effects of imidacloprid on the biological traits of S. graminum and R. padi. Bioassays showed that imidacloprid possesses high toxicity to adult S. graminum and R. padi, with LC50 of 3.59 and 13.78 mg L-1 following 24 h exposure. A low lethal concentration of imidacloprid (LC25) significantly decreased adult longevity and total longevity of progeny generation aphids (F1) of S. graminum. Nevertheless, imidacloprid (LC25) had no significant effects on the fecundity and longevity of directly exposed parental parental S. graminum and R. padi (F0). Our results showed that the low lethal concentration of imidacloprid affected the demographic parameters that ultimately impact on the population of S. graminum. This study provides detailed information about the overall effects of imidacloprid on S. graminum and R. padi that might help to manage these two key pests.
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Affiliation(s)
- Xiang Ji
- Hebi Institute of Engineering and Technology, Henan Polytechnic University, Hebi, P.R. China
| | - Yu-Tai Jiang
- College of Resources and Environment, Henan Engineering Research Center of Biological Pesticide & Fertilizer Development and Synergistic Application, Henan Institute of Science and Technology, Xinxiang, P.R. China
| | - Tian-Xin Guo
- Department of Entomology, China Agricultural University, Beijing, P.R. China
| | - Pei Zhang
- College of Resources and Environment, Henan Engineering Research Center of Biological Pesticide & Fertilizer Development and Synergistic Application, Henan Institute of Science and Technology, Xinxiang, P.R. China
| | - Xin-an Li
- College of Resources and Environment, Henan Engineering Research Center of Biological Pesticide & Fertilizer Development and Synergistic Application, Henan Institute of Science and Technology, Xinxiang, P.R. China
| | - Fan-Bin Kong
- College of Resources and Environment, Henan Engineering Research Center of Biological Pesticide & Fertilizer Development and Synergistic Application, Henan Institute of Science and Technology, Xinxiang, P.R. China
| | - Bai-Zhong Zhang
- Hebi Institute of Engineering and Technology, Henan Polytechnic University, Hebi, P.R. China
- College of Resources and Environment, Henan Engineering Research Center of Biological Pesticide & Fertilizer Development and Synergistic Application, Henan Institute of Science and Technology, Xinxiang, P.R. China
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108
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Mansour R, Bauer AL, Goodarzi M, Hoffmann C. Toxicity of Pesticides Applied in European Vineyards on Anagyrus vladimiri and Trichogramma evanescens, Parasitoids of Planococcus ficus and Lobesia botrana. INSECTS 2023; 14:907. [PMID: 38132581 PMCID: PMC10744053 DOI: 10.3390/insects14120907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/19/2023] [Accepted: 11/23/2023] [Indexed: 12/23/2023]
Abstract
Risk assessments of chemical pesticides toward natural enemies are crucial for ensuring sustainable grapevine-integrated pest management. In this context, laboratory experiments were conducted to evaluate the toxicity of four insecticides (lambda-cyhalothrin, flupyradifurone, acetamiprid, and cyantraniliprole) and one fungicide (spiroxamine) commonly applied in German (European) vineyards on the pupae and adults of both Anagyrus vladimiri, a parasitoid of the vine mealybug Planococcus ficus, and Trichogramma evanescens, a parasitoid of the European grapevine moth, Lobesia botrana. The tested pesticides did not significantly affect the development of the pupal stage inside mealybug mummies or the emergence of the parasitoid A. vladimiri. The pesticides flupyradifurone, acetamiprid, and spiroxamine resulted in the highest mortality percentages for all emerged A. vladimiri parasitoids at 8 and 10 days after treatment compared with either in lambda-cyhalothrin or cyantraniliprole. However, all pesticides, except the diamide insecticide cyantraniliprole, significantly affected the development of the pupal stage and the emergence of the parasitoid T. evanescens. The percentages of T. evanescens emergence following the application of the fungicide spiroxamine or either lambda-cyhalothrin or flupyradifurone were significantly higher than those observed in the acetamiprid treatment. Regarding direct contact toxicity, the highest percentages (100%) of A. vladimiri adult parasitoid mortality were obtained in the flupyradifurone, acetamiprid, and spiroxamine treatments, while the lowest mortality percentages were observed in lambda-cyhalothrin, cyantraniliprole, and untreated control treatments. According to the IOBC classes of toxicity, flupyradifurone, acetamiprid, and spiroxamine were classified as harmful, while both lambda-cyhalothrin and cyantraniliprole were classified as slightly harmful to A. vladimiri adults. As such, all pesticides had a significant impact on the survival of exposed T. evanescens adults. The highest percentages of adult T. evanescens mortality were obtained in the flupyradifurone, acetamiprid, and spiroxamine treatments, with the fungicide spiroxamine resulting in significantly higher mortality percentages than either flupyradifurone or acetamiprid, while the lowest mortality percentages were found in the lambda-cyhalothrin and cyantraniliprole treatments. Therefore, applying the insecticides acetamiprid and/or flupyradifurone and the fungicide spiroxamine should be avoided when A. vladimiri and/or T. evanescens are naturally present or released in grapes. The insights gained from these two easy-to-rear parasitoid species allow analogous conclusions to be drawn for closely related species in vineyards belonging to either family Encyrtidae or Trichogrammatidae, which are not easy to rear. Interestingly, using the safer insecticides lambda-cyhalothrin and/or cyantraniliprole could be compatible with both parasitoid species, which could be sustainably exploited in either conservation or augmentative biological control in vineyards.
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Affiliation(s)
- Ramzi Mansour
- Julius Kühn-Institute—Federal Research Institute for Cultivated Plants, Institute for Plant Protection in Fruit Crops and Viticulture, Geilweilerhof, 76833 Siebeldingen, Germany
- Higher Institute for Preparatory Studies in Biology-Geology (ISEP-BG), Section of Biological Sciences, University of Carthage, Tunis, La Soukra 2036, Tunisia
| | - Anna Lena Bauer
- Julius Kühn-Institute—Federal Research Institute for Cultivated Plants, Institute for Plant Protection in Fruit Crops and Viticulture, Geilweilerhof, 76833 Siebeldingen, Germany
| | - Maryam Goodarzi
- Julius Kühn-Institute—Federal Research Institute for Cultivated Plants, Institute for Plant Protection in Fruit Crops and Viticulture, Geilweilerhof, 76833 Siebeldingen, Germany
| | - Christoph Hoffmann
- Julius Kühn-Institute—Federal Research Institute for Cultivated Plants, Institute for Plant Protection in Fruit Crops and Viticulture, Geilweilerhof, 76833 Siebeldingen, Germany
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109
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Lin T, Guo Y, Hu J, Rao W, Wei H, Chen X, Yang G, Fan G. Toxicity risk assessment of flupyradifurone for the predatory pirate bug, Orius strigicollis (Poppius) (Heteroptera: Anthocoridae), a biological control agent of Diaphorina citri Kuwayama (Hemiptera: Liviidae). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 267:115632. [PMID: 37890245 DOI: 10.1016/j.ecoenv.2023.115632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 09/28/2023] [Accepted: 10/22/2023] [Indexed: 10/29/2023]
Abstract
Diaphorina citri Kuwayama (Hemiptera: Liviidae), commonly known as the Asian citrus psyllid, is a prominent citrus tree pest that serves as a vector for Asian huanglongbing (HLB). The substantial costs incurred by the citrus industry as a consequence of this disease have spurred considerable interest in the combined control of D. citri using insecticides and natural enemies. However, the successful implementation of such integrated pest management strategies is dependent on ensuring the compatibility of using natural enemies in the presence of insecticides. In this regard, we evaluated the lethal and sublethal effects of flupyradifurone on Orius strigicollis (Poppius) (Heteroptera: Anthocoridae), an important predatory biological control agent, in which we assessed the risk of exposure to flupyradifurone under both in- and off-field scenario. The median lethal rate (LR50) value of flupyradifurone against O. strigicollis (9.089 g a.i. ha-1), was found to be significantly lower than the maximum field recommended rate (MFRR, 170 g a.i. ha-1). Additionally, at 0.254 g a.i. ha-1, flupyradifurone was established to significantly prolong the developmental duration of O. strigicollis from the first to third instar nymphs. Although we detected no significant difference in the survival of immature O. strigicollis subjected to 0.064 g a.i. ha-1 and control treatments, survival was significantly lower in 0.127 and 0.254 g a.i. ha-1 treatments. Moreover, whereas there were no significant differences in adult longevity between the 0.127 g a.i. ha-1 and control treatments, we recorded a significant reduction in fecundity. Furthermore, there were reductions in peak life expectancy, reproductive value, finite rate of increase, intrinsic rate of increase, and net reproduction rate in response to exposure to increasing flupyradifurone rate. Additionally, at 0.127 g a.i. ha-1, the mean generation time was significantly longer than that under control conditions. Following simulated exposure to flupyradifurone for 100 days, population of O. strigicollis in the 0.064 g a.i. ha-1 and control treatments were found to be significantly larger than those exposed to 0.127 g a.i. ha-1. On the basis on LR50 evaluations, whereas the risk of exposure risk was unacceptable for O. strigicollis under in-field scenario, it remained acceptable off-field. Nonetheless, the sublethal effect of prolonged exposure to residual flupyradifurone could pose an unacceptable off-field risk to O. strigicollis (e.g., in adjacent habitats). Consequently, the effects of different flupyradifurone exposure scenarios on O. strigicollis should be thoroughly assessed, and reducing the dosage of flupyradifurone could be advantageous for the control of D. citri when combine with augmentative release of O. strigicollis.
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Affiliation(s)
- Tao Lin
- Fujian Engineering Research Center for Green Pest Management, Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China; Fuzhou Scientific Observing and Experimental Station of Crop Pests of Ministry of Agriculture and Rural Affairs, Fujian 350013, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yaqing Guo
- Fujian Engineering Research Center for Green Pest Management, Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China; Fuzhou Scientific Observing and Experimental Station of Crop Pests of Ministry of Agriculture and Rural Affairs, Fujian 350013, China
| | - Jinfeng Hu
- Fujian Engineering Research Center for Green Pest Management, Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China; Fuzhou Scientific Observing and Experimental Station of Crop Pests of Ministry of Agriculture and Rural Affairs, Fujian 350013, China
| | - Wenhua Rao
- Fujian Engineering Research Center for Green Pest Management, Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China; Fuzhou Scientific Observing and Experimental Station of Crop Pests of Ministry of Agriculture and Rural Affairs, Fujian 350013, China
| | - Hui Wei
- Fujian Engineering Research Center for Green Pest Management, Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China; Fuzhou Scientific Observing and Experimental Station of Crop Pests of Ministry of Agriculture and Rural Affairs, Fujian 350013, China
| | - Xiaoyu Chen
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Guang Yang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Guocheng Fan
- Fujian Engineering Research Center for Green Pest Management, Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China; Fuzhou Scientific Observing and Experimental Station of Crop Pests of Ministry of Agriculture and Rural Affairs, Fujian 350013, China.
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110
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Shafi MS, Iqbal N, Naqqash MN, Saeed S, Usman M, Abid AD, Shahzad MS, Riaz H, Bashir MA, Alajmi RA. Transgenerational effect of Afidopyropen on Bemisia tabaci Gennadius (Homoptera: Aleyrodidae). Sci Rep 2023; 13:19988. [PMID: 37968272 PMCID: PMC10651898 DOI: 10.1038/s41598-023-46479-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 11/01/2023] [Indexed: 11/17/2023] Open
Abstract
Bemisia tabaci Gennadius (Homoptera: Aleyrodidae) is the most devastating insect-pest in cotton crop. It is vector of the cotton leaf curl virus (CLCV) and is responsible for huge losses to cotton industry in Pakistan and worldwide. It is mainly controlled by insecticides but the injudicious use of insecticides has resulted in insecticide resistance and population resurgence in addition to various harmful effects on the humans, non-target organisms and the environment. Transgenerational studies are very helpful to choose a best insecticidal option. In the current study, age-stage two-sex life table analysis was used to identify transgenerational effects of sublethal doses of afidopyropen. The adults of B. tabaci were treated with three concentrations of afidopyropen i.e., LC10, LC30 and LC50. The results indicated significant changes in the progeny i.e. the fecundity decreased in treated population; and female and male longevity of their progeny were more in control as compared to treated populations. Similarly, population parameters like intrinsic rate of growth (r), net reproductive rate (R0) and limiting rate of growth (λ) were significantly decreased in the treated adult progeny with values of 0.08-0.11, 4.85-7.46 and 1.09-1.12 per day, respectively. Based on the reduced biotic potential, afidopyropen can be suggested as an effective alternative option for the management of B. tabaci.
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Affiliation(s)
| | - Naeem Iqbal
- Institute of Plant Protection, MNS University of Agriculture, Multan, Pakistan.
| | | | - Shafqat Saeed
- Institute of Plant Protection, MNS University of Agriculture, Multan, Pakistan
| | - Muhammad Usman
- Department of Agronomy, MNS University of Agriculture, Multan, Pakistan
| | - Allah Ditta Abid
- Department of Plant Protection, Ministry of National Food Security & Research, Karachi, Pakistan
| | - Muhammad Sohail Shahzad
- Department of Plant Protection, Ministry of National Food Security & Research, Karachi, Pakistan
| | - Hasan Riaz
- Institute of Plant Protection, MNS University of Agriculture, Multan, Pakistan
| | - Muhammad Amjad Bashir
- Department of Plant Protection, Faculty of Agricultural Sciences, Ghazi University, Dera Ghazi Khan, Punjab, Pakistan
- College of Plant Protection, South West University, Chongqing, China
| | - Reem Atalla Alajmi
- Department of Zoology, Faculty of Science, King Saud University, 11451, Riyadh, Saudi Arabia
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111
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Scheibli L, Elsenhans T, Wolf H, Stemme T, Pfeffer SE. Influence of the pesticide flupyradifurone on mobility and physical condition of larval green lacewings. Sci Rep 2023; 13:19804. [PMID: 37957276 PMCID: PMC10643709 DOI: 10.1038/s41598-023-46135-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023] Open
Abstract
Global pesticide use in agriculture is one reason for the rapid insect decline in recent years. The relatively new pesticide flupyradifurone is neurotoxic to pest insects but considered harmless to bees according to previous risk assessments. With this study, we aim to investigate lethal and sublethal effects of flupyradifurone on larvae of the beneficial arthropod Chrysoperla carnea. We treated the animals orally with field-realistic concentrations of flupyradifurone and examined lethality as well as effects on condition, mobility and locomotion. For the lethal dose 50, we determined a value of > 120-200 ng/mg (corresponding to a mean amount of 219 ng/larva) after 168 h. Abnormal behaviors such as trembling and comatose larvae were observed even at the lowest concentration applied (> 0-20 ng/mg, 59 ng/larva). Mobility analysis showed impaired activity patterns, resulting in acute hypoactivity at all pesticide concentrations and time-delayed hyperactivity in larvae treated with > 40-60 ng/mg (100 ng/larva) and > 80-100 ng/mg (120 ng/larva), respectively. Even locomotion as a fundamental behavioral task was negatively influenced throughout larval development. In conclusion, our results demonstrate that flupyradifurone impacts life and survival of lacewing larvae and may pose-despite its status as bee-friendly-a major threat to insect fauna and environment.
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Affiliation(s)
- Leonie Scheibli
- Institute of Neurobiology, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany.
| | - Tabita Elsenhans
- Institute of Neurobiology, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Harald Wolf
- Institute of Neurobiology, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Torben Stemme
- Institute of Neurobiology, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
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112
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DesJardins NS, Macias J, Soto Soto D, Harrison JF, Smith BH. 'Inert' co-formulants of a fungicide mediate acute effects on honey bee learning performance. Sci Rep 2023; 13:19458. [PMID: 37945797 PMCID: PMC10636155 DOI: 10.1038/s41598-023-46948-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 11/07/2023] [Indexed: 11/12/2023] Open
Abstract
Managed honey bees have experienced high rates of colony loss recently, with pesticide exposure as a major cause. While pesticides can be lethal at high doses, lower doses can produce sublethal effects, which may substantially weaken colonies. Impaired learning performance is a behavioral sublethal effect, and is often present in bees exposed to insecticides. However, the effects of other pesticides (such as fungicides) on honey bee learning are understudied, as are the effects of pesticide formulations versus active ingredients. Here, we investigated the effects of acute exposure to the fungicide formulation Pristine (active ingredients: 25.2% boscalid, 12.8% pyraclostrobin) on honey bee olfactory learning performance in the proboscis extension reflex (PER) assay. We also exposed a subset of bees to only the active ingredients to test which formulation component(s) were driving the learning effects. We found that the formulation produced negative effects on memory, but this effect was not present in bees fed only boscalid and pyraclostrobin. This suggests that the trade secret "other ingredients" in the formulation mediated the learning effects, either through exerting their own toxic effects or by increasing the toxicities of the active ingredients. These results show that pesticide co-formulants should not be assumed inert and should instead be included when assessing pesticide risks.
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Affiliation(s)
| | - Jessalynn Macias
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | | | - Jon F Harrison
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | - Brian H Smith
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
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113
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Betsi PC, Perdikis DC. Lethal and Sub-Lethal Effects of Organic-Production-Approved Insecticides and Fungicides on the Predator Macrolophus pygmaeus (Rambur) (Hemiptera: Miridae). INSECTS 2023; 14:866. [PMID: 37999065 PMCID: PMC10672414 DOI: 10.3390/insects14110866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 10/30/2023] [Accepted: 11/03/2023] [Indexed: 11/25/2023]
Abstract
In this study, the effects of paraffin oil, copper hydroxide, copper oxychloride, wettable sulfur, Beauveria bassiana and deltamethrin, as a toxic reference treatment, on the survival and predation rate of M. pygmaeus were investigated. In each treatment, the prey were classified as slightly, partially or fully consumed. The mortality rate after contact exposure was high (66.6%) when nymphs were treated with copper hydroxide but much lower after residual exposure (6.6%). B. bassiana caused 53.3% and 46.6% mortality via contact and residual exposure, respectively. The total prey consumption was significantly lower in the pyrethroid reference treatment control and B. bassiana treatments. The highest percentage of slightly consumed prey was recorded in the toxic reference and B. bassiana treatments, that of partially consumed prey in the copper hydroxide treatment and, finally, that of fully consumed prey in the paraffin oil treatment. Therefore, assessing the sub-lethal effects by separating the prey killed into slightly, partially and fully consumed is a sensitive approach to detect impacts which otherwise may remain unnoticed. The results provide information for the most appropriate use of M. pygmaeus in IPM programs and introduce more sensitive approaches in the detection of side-effects of pesticides on M. pygmaeus and other hemipteran predators.
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Affiliation(s)
| | - Dionysios Ch Perdikis
- Laboratory of Agricultural Zoology and Entomology, Agricultural University of Athens, Iera Odos 75, 118 55 Athens, Greece
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114
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Fisher A, Tadei R, Berenbaum M, Nieh J, Siviter H, Crall J, Glass JR, Muth F, Liao LH, Traynor K, DesJardins N, Nocelli R, Simon-Delso N, Harrison JF. Breaking the cycle: Reforming pesticide regulation to protect pollinators. Bioscience 2023; 73:808-813. [PMID: 38125825 PMCID: PMC10728777 DOI: 10.1093/biosci/biad088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 08/29/2023] [Accepted: 09/08/2023] [Indexed: 12/23/2023] Open
Abstract
Over decades, pesticide regulations have cycled between approval and implementation, followed by the discovery of negative effects on nontarget organisms that result in new regulations, pesticides, and harmful effects. This relentless pattern undermines the capacity to protect the environment from pesticide hazards and frustrates end users that need pest management tools. Wild pollinating insects are in decline, and managed pollinators such as honey bees are experiencing excessive losses, which threatens sustainable food security and ecosystem function. An increasing number of studies demonstrate the negative effects of field-realistic exposure to pesticides on pollinator health and fitness, which contribute to pollinator declines. Current pesticide approval processes, although they are superior to past practices, clearly continue to fail to protect pollinator health. In the present article, we provide a conceptual framework to reform cyclical pesticide approval processes and better protect pollinators.
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Affiliation(s)
- Adrian Fisher
- School of Life Sciences at Arizona State University, Tempe, Arizona, United States
| | | | - May Berenbaum
- University of Illinois at Urbana-Champaign, Urbana, Illinois, United States
| | - James Nieh
- University of California, San Diego, California, United States
| | - Harry Siviter
- University of Texas at Austin, Austin, Texas, United States
- University of Bristol, Bristol, England, United Kingdom
| | - James Crall
- University of Wisconsin-Madison, Madison, Widsconsin, United States
| | - Jordan R Glass
- School of Life Sciences at Arizona State University, Tempe, Arizona, United States
| | - Felicity Muth
- University of Texas at Austin, Austin, Texas, United States
| | - Ling-Hsiu Liao
- University of Illinois at Urbana-Champaign, Urbana, Illinois, United States
| | | | - Nicole DesJardins
- School of Life Sciences at Arizona State University, Tempe, Arizona, United States
| | | | - Noa Simon-Delso
- BeeLife European Beekeeping Coordination, Louvain la Neuve, Belgium
| | - Jon F Harrison
- School of Life Sciences at Arizona State University, Tempe, Arizona, United States
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115
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Schöfer N, Ackermann J, Hoheneder J, Hofferberth J, Ruther J. Sublethal Effects of Four Insecticides Targeting Cholinergic Neurons on Partner and Host Finding in the Parasitic Wasp Nasonia vitripennis. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2023; 42:2400-2411. [PMID: 37477474 DOI: 10.1002/etc.5721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/03/2023] [Accepted: 07/18/2023] [Indexed: 07/22/2023]
Abstract
Lethal and sublethal effects of pesticides on nontarget organisms are one of the causes of the current decline of many insect species. However, research in the past decades has focused primarily on pollinators, although other beneficial nontarget organisms such as parasitic wasps may also be affected. We studied the sublethal effects of the four insecticides acetamiprid, dimethoate, flupyradifurone, and sulfoxaflor on pheromone-mediated sexual communication and olfactory host finding of the parasitic wasp Nasonia vitripennis. All agents target cholinergic neurons, which are involved in the processing of chemical information by insects. We applied insecticide doses topically and tested the response of treated wasps to sex pheromones and host-associated chemical cues. In addition, we investigated the mating rate of insecticide-treated wasps. The pheromone response of females surviving insecticide treatment was disrupted by acetamiprid (≥0.63 ng), dimethoate (≥0.105 ng), and flupyradifurone (≥21 ng), whereas sulfoxaflor had no significant effects at the tested doses. Olfactory host finding was affected by all insecticides (acetamiprid ≥1.05 ng, dimethoate ≥0.105 ng, flupyradifurone ≥5.25 ng, sulfoxaflor ≥0.52 ng). Remarkably, females treated with ≥0.21 ng dimethoate even avoided host odor. The mating rate of treated N. vitripennis couples was decreased by acetamiprid (6.3 ng), flupyradifurone (≥2.63 ng), and sulfoxaflor (2.63 ng), whereas dimethoate showed only minor effects. Finally, we determined the amount of artificial nectar consumed by N. vitripennis females within 48 h. Considering this amount (∼2 µL) and the maximum concentrations of the insecticides reported in nectar, tested doses can be considered field-realistic. Our results suggest that exposure of parasitic wasps to field-realistic doses of insecticides targeting the cholinergic system reduces their effectiveness as natural enemies by impairing the olfactory sense. Environ Toxicol Chem 2023;42:2400-2411. © 2023 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
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Affiliation(s)
- Nils Schöfer
- Institute of Zoology, University of Regensburg, Regensburg, Germany
| | - Julian Ackermann
- Institute of Zoology, University of Regensburg, Regensburg, Germany
| | - Julian Hoheneder
- Institute of Zoology, University of Regensburg, Regensburg, Germany
| | | | - Joachim Ruther
- Institute of Zoology, University of Regensburg, Regensburg, Germany
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116
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Pinheiro RA, Duque TS, Barroso GM, Soares MA, Cabral CM, Zanuncio JC, Dos Santos JB. Herbicides may threaten advances in biological control of diseases and pests. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:111850-111870. [PMID: 37848791 DOI: 10.1007/s11356-023-30198-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 09/27/2023] [Indexed: 10/19/2023]
Abstract
Advances in agriculture include integrated methods of controlling pests, diseases, and weeds with biocontrollers, which are constantly increasing, along with herbicides. The objective is to present a systematic review of the main reports of herbicide effects on non-target organisms used in applied biological control and those naturally occurring in the ecosystems controlling pests. The categories were divided into predatory and parasitoid arthropods. Three hundred and fifty reports were analyzed, being 58.3% with parasitoids and 41.7% with predators. Lethal or sublethal effects of herbicides on reproduction, predation, genotoxicity, and abundance of biological control organisms have been reported. Two hundred and four reports of the impact of herbicides on parasitoids were analyzed. The largest number of reports was with parasitoids of the genus Trichogramma, with wide use in managing pests of the herbicide-tolerant transgenic plants. Most tests evaluating effects on parasitism, emergence, and mortality of natural enemies subjected to herbicides are with parasitoids of Lepidoptera eggs with a high diversity and use in managing these pests in different crops. Additive and synergistic effects of molecules increase the risks of herbicide mixtures. Herbicide use for weed management must integrate other control methods, as the chemical can impact natural enemies, reducing the biological control of pests.
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Affiliation(s)
- Rodrigo Almeida Pinheiro
- Departamento de Agronomia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 39100-000, Diamantina, Minas Gerais, Brasil
| | - Tayna Sousa Duque
- Departamento de Agronomia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 39100-000, Diamantina, Minas Gerais, Brasil
| | - Gabriela Madureira Barroso
- Departamento de Agronomia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 39100-000, Diamantina, Minas Gerais, Brasil.
| | - Marcus Alvarenga Soares
- Departamento de Agronomia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 39100-000, Diamantina, Minas Gerais, Brasil
| | - Cassia Michelle Cabral
- Departamento de Biologia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 39100-000, Diamantina, Minas Gerais, Brasil
| | - José Cola Zanuncio
- Departamento de Entomologia/BIOAGRO, Universidade Federal de Viçosa, 36570-900, Viçosa, Minas Gerais, Brasil
| | - José Barbosa Dos Santos
- Departamento de Agronomia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 39100-000, Diamantina, Minas Gerais, Brasil
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117
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Soose LJ, Hügl KS, Oehlmann J, Schiwy A, Hollert H, Jourdan J. A novel approach for the assessment of invertebrate behavior and its use in behavioral ecotoxicology. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 897:165418. [PMID: 37433332 DOI: 10.1016/j.scitotenv.2023.165418] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 07/03/2023] [Accepted: 07/07/2023] [Indexed: 07/13/2023]
Abstract
Sublethal effects are becoming more relevant in ecotoxicological test methods due to their higher sensitivity compared to lethal endpoints and their preventive nature. Such a promising sublethal endpoint is the movement behavior of invertebrates which is associated with the direct maintenance of various ecosystem processes, hence being of special interest for ecotoxicology. Disturbed movement behavior is often related to neurotoxicity and can affect drift, mate-finding, predator avoidance, and therefore population dynamics. We show the practical implementation of the ToxmateLab, a new device that allows monitoring the movement behavior of up to 48 organisms simultaneously, for behavioral ecotoxicology. We quantified behavioral reactions of Gammarus pulex (Amphipoda, Crustacea) after exposure to two pesticides (dichlorvos and methiocarb) and two pharmaceuticals (diazepam and ibuprofen) at sublethal, environmentally relevant concentrations. We simulated a short-term pulse contamination event that lasted 90 min. Within this short test period, we successfully identified behavioral patterns that were most pronounced upon exposure to the two pesticides: Methiocarb initially triggered hyperactivity, after which baseline behavior was restored. On the other hand, dichlorvos induced hypoactivity starting at a moderate concentration of 5 μg/L - a pattern we also found at the highest concentration of ibuprofen (10 μg/L). An additional acetylcholine esterase inhibition assay revealed no significant impact of the enzyme activity that would explain the altered movement behavior. This suggests that in environmentally realistic scenarios chemicals can induce stress - apart from mode-of-action - that affects non-target organisms' behavior. Overall, our study proves the practical applicability of empirical behavioral ecotoxicological approaches and thus represents a next step towards routine practical use.
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Affiliation(s)
- Laura J Soose
- Goethe University of Frankfurt, Department Aquatic Ecotoxicology, Max-von-Laue-Straße 13, D-60438 Frankfurt am Main, Germany; Goethe University of Frankfurt, Department of Evolutionary Ecology and Environmental Toxicology, Max-von-Laue-Straße 13, D-60438 Frankfurt am Main, Germany.
| | - Kim S Hügl
- Goethe University of Frankfurt, Department Aquatic Ecotoxicology, Max-von-Laue-Straße 13, D-60438 Frankfurt am Main, Germany; Goethe University of Frankfurt, Department of Evolutionary Ecology and Environmental Toxicology, Max-von-Laue-Straße 13, D-60438 Frankfurt am Main, Germany
| | - Jörg Oehlmann
- Goethe University of Frankfurt, Department Aquatic Ecotoxicology, Max-von-Laue-Straße 13, D-60438 Frankfurt am Main, Germany
| | - Andreas Schiwy
- Goethe University of Frankfurt, Department of Evolutionary Ecology and Environmental Toxicology, Max-von-Laue-Straße 13, D-60438 Frankfurt am Main, Germany; Fraunhofer-Institute für Molecular Biology and Applied Ecology IME, Department Environmental Media-related Ecotoxicology, Frankfurt am Main, Germany
| | - Henner Hollert
- Goethe University of Frankfurt, Department of Evolutionary Ecology and Environmental Toxicology, Max-von-Laue-Straße 13, D-60438 Frankfurt am Main, Germany; Fraunhofer-Institute für Molecular Biology and Applied Ecology IME, Department Environmental Media-related Ecotoxicology, Frankfurt am Main, Germany
| | - Jonas Jourdan
- Goethe University of Frankfurt, Department Aquatic Ecotoxicology, Max-von-Laue-Straße 13, D-60438 Frankfurt am Main, Germany.
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Lu Y, Tian J, Ullah F, Desneux N, Guo J, Wang S, Xu H, Lu Z. Sublethal and transgenerational effects of lufenuron on biological characteristics and expression of reproductive related genes in the fall armyworm, Spodoptera frugiperda. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 196:105593. [PMID: 37945243 DOI: 10.1016/j.pestbp.2023.105593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 08/09/2023] [Accepted: 08/26/2023] [Indexed: 11/12/2023]
Abstract
The fall armyworm, Spodoptera frugiperda, is a notorious polyphagous pest that causes serious economic losses in crucial crops and has invaded Africa and Asia. Lufenuron is widely used for controlling S. frugiperda in China, owing to its high toxicity against this key pest, and less pollution and little impact on natural enemies. In the present study, the sublethal and transgenerational effects of lufenuron on S. frugiperda were investigated to provide in-depth information for the rational use of lufenuron. Results showed that the development time and pupae weight were not significantly affected following exposure of females to LC10 and LC25 and male S. frugiperda to the LC10 of lufenuron. However, LC25 exposure significantly reduced pupal and total development time and pupae weight of male S. frugiperda. The longevity of S. frugiperda adults was prolonged by lufenuron and the fecundity of S. frugiperda treated with LC10 of lufenuron was significantly increased by 40% compared to the control. In addition, our study demonstrated that the LC25 of lufenuron had transgenerational effects on the progeny generation. The development time of female S. frugiperda whose parents were exposed to LC25 of lufenuron was significantly decreased compared to the control. And then, the expression profiles of Vg, VgR, JHEH, JHE, JHAMT, JHBP, CYP307A1, CYP306A1, CYP302A1 and CYP314A1 genes involved in insect reproduction and development were analyzed using Quantitative Real-Time PCR (RT-qPCR). Results showed that Vg, VgR, JHE, JHAMT, and CYP306A1 were significantly upregulated at the LC10 of lufenuron, which revealed that these upregulated genes might be linked with increased fecundity of S. frugiperda. Taken together, these findings highlighted the importance of sublethal and transgenerational effects under laboratory conditions and these effects may change the population dynamics in the field. Therefore, our study provided valuable information for promoting the rational use of lufenuron for controlling S. frugiperda.
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Affiliation(s)
- Yanhui Lu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Junce Tian
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Farman Ullah
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
| | - Nicolas Desneux
- Université Côte d'Azur, INRAE, CNRS, UMR ISA, Nice 06000, France.
| | - Jiawen Guo
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Shanshan Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Hongxing Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
| | - Zhongxian Lu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
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Tokach R, Smart A, Wu-Smart J. Re-using food resources from failed honey bee (Apis mellifera L.) colonies and their impact on colony queen rearing capacity. Sci Rep 2023; 13:18127. [PMID: 37872271 PMCID: PMC10593847 DOI: 10.1038/s41598-023-44037-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 10/03/2023] [Indexed: 10/25/2023] Open
Abstract
For over a decade, beekeepers have experienced high losses of honey bee (Apis mellifera L.) colonies due to a variety of stressors including pesticide exposure. Some of these chemical stressors may residually remain in the colony comb and food resources (pollen and nectar) of failed colonies and be later re-used by beekeepers when splitting and building back new colonies. The practice of re-using comb from previously perished colonies (termed "deadout") is common in beekeeping practice, but its role in affecting colony health is not well understood. Here, we evaluate the impact of reused, pesticide-contaminated "deadout" combs on colony function during the process of replacing a queen bee. Queenless microcolonies were established to monitor queen rearing capacity in two treatment groups: (1) colonies given frames containing food resources from deadout colonies in control "clean" apiaries and, (2) colonies given frames containing "contaminated" resources from deadout colonies originating from apiaries experiencing chronic pesticide exposure from widespread systemic pesticide pollution (including neonicotinoid insecticides: clothianidin and thiamethoxam). Results indicate that colonies given pesticide-contaminated resources produced fewer queen cells per colony and had a lower proportion of colonies successfully raising a functional, diploid egg-laying queen. This research highlights the deleterious effects of re-using deadout combs from colonies previously lost due to pesticide contamination.
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Affiliation(s)
- Rogan Tokach
- Department of Entomology, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Autumn Smart
- Department of Entomology, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Judy Wu-Smart
- Department of Entomology, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA.
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Zioga E, White B, Stout JC. Honey bees and bumble bees may be exposed to pesticides differently when foraging on agricultural areas. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 896:166214. [PMID: 37567302 DOI: 10.1016/j.scitotenv.2023.166214] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/23/2023] [Accepted: 08/08/2023] [Indexed: 08/13/2023]
Abstract
In an agricultural environment, where crops are treated with pesticides, bees are likely to be exposed to a range of chemical compounds in a variety of ways. The extent to which different bee species are affected by these chemicals, largely depends on the concentrations and type of exposure. We quantified the presence of selected pesticide compounds in the pollen of two different entomophilous crops; oilseed rape (Brassica napus) and broad bean (Vicia faba). Sampling was performed in 12 sites in Ireland and our results were compared with the pollen loads of honey bees and bumble bees actively foraging on those crops in those same sites. Detections were compound specific, and the timing of pesticide application in relation to sampling likely influenced the final residue contamination levels. Most detections originated from compounds that were not recently applied on the fields, and samples from B. napus fields were more contaminated compared to those from V. faba fields. Crop pollen was contaminated only with fungicides, honey bee pollen loads contained mainly fungicides, while more insecticides were detected in bumble bee pollen loads. The highest number of compounds and most detections were observed in bumble bee pollen loads, where notably, all five neonicotinoids assessed (acetamiprid, clothianidin, imidacloprid, thiacloprid, and thiamethoxam) were detected despite the no recent application of these compounds on the fields where samples were collected. The concentrations of neonicotinoid insecticides were positively correlated with the number of wild plant species present in the bumble bee-collected pollen samples, but this relationship could not be verified for honey bees. The compounds azoxystrobin, boscalid and thiamethoxam formed the most common pesticide combination in pollen. Our results raise concerns about potential long-term bee exposure to multiple residues and question whether honey bees are suitable surrogates for pesticide risk assessments for all bee species.
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Affiliation(s)
- Elena Zioga
- Botany, School of Natural Sciences, Trinity College Dublin, Dublin 2, Ireland.
| | - Blánaid White
- School of Chemical Sciences, DCU Water Institute, Dublin City University, Dublin 9, Ireland
| | - Jane C Stout
- Botany, School of Natural Sciences, Trinity College Dublin, Dublin 2, Ireland
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Dirilgen T, Herbertsson L, O'Reilly AD, Mahon N, Stanley DA. Moving past neonicotinoids and honeybees: A systematic review of existing research on other insecticides and bees. ENVIRONMENTAL RESEARCH 2023; 235:116612. [PMID: 37454798 DOI: 10.1016/j.envres.2023.116612] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 06/16/2023] [Accepted: 07/09/2023] [Indexed: 07/18/2023]
Abstract
Synthetic pesticides (e.g. herbicides, fungicides and insecticides) are used widely in agriculture to protect crops from pests, weeds and disease. However, their use also comes with a range of environmental concerns. One key concern is the effect of insecticides on non-target organisms such as bees, who provide pollination services for crops and wild plants. This systematic literature review quantifies the existing research on bees and insecticides broadly, and then focuses more specifically on non-neonicotinoid insecticides and non-honeybees. We find that articles on honeybees (Apis sp.) and insecticides account for 80% of all research, with all other bees combined making up 20%. Neonicotinoids were studied in 34% of articles across all bees and were the most widely studied insecticide class for non-honeybees overall, with almost three times as many studies than the second most studied class. Of non-neonicotinoid insecticide classes and non-honeybees, the most studied were pyrethroids and organophosphates followed by carbamates, and the most widely represented bee taxa were bumblebees (Bombus), followed by leaf-cutter bees (Megachile) and mason bees (Osmia). Research has taken place across several countries, with the highest numbers of articles from Brazil and the US, and with notable gaps from countries in Asia, Africa and Oceania. Mortality was the most studied effect type, while sub-lethal effects such as on behaviour were less studied. Few studies tested how the effect of insecticides were influenced by multiple pressures, such as climate change and co-occurring pesticides (cocktail effects). As anthropogenic pressures do not occur in isolation, we suggest that future research also addresses these knowledge gaps. Given the changing global patterns in insecticide use, and the increasing inclusion of both non-honeybees and sub-lethal effects in pesticide risk assessment, there is a need for expanding research beyond its current state to ensure a strong scientific evidence base for the development of risk assessment and associated policy.
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Affiliation(s)
- T Dirilgen
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland; Earth Institute, University College Dublin, Belfield, Dublin, Ireland.
| | - L Herbertsson
- Department of Biology, Lund University, Lund, Sweden
| | - A D O'Reilly
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland; Earth Institute, University College Dublin, Belfield, Dublin, Ireland
| | - N Mahon
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
| | - D A Stanley
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland; Earth Institute, University College Dublin, Belfield, Dublin, Ireland
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Elzinga DC, Strickland WC. Generalized Stressors on Hive and Forager Bee Colonies. Bull Math Biol 2023; 85:112. [PMID: 37823943 DOI: 10.1007/s11538-023-01219-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 09/26/2023] [Indexed: 10/13/2023]
Abstract
Hive-forming bees play an integral role in promoting agricultural sustainability and ecosystem preservation. The recent worldwide decline of several species of bees, and in particular, the honeybee in the United States, highlights the value in understanding possible causes. Over the past decade, numerous mathematical models and empirical experiments have worked to understand the causes of colony stress, with a particular focus on colony collapse disorder. We integrate and enhance major mathematical models of the past decade to create a single, analytically tractable model using a traditional disease modeling framework that incorporates both lethal and sublethal stressors. On top of this synthesis, a major innovation of our model is the generalization of stressor attributes including their transmissibility, impairment level, lethality, duration, and temporal-occurrence. Our model is validated against numerous emergent, biological characteristics and demonstrates that precocious foraging and labor destabilization can produce colony collapse disorder. The thresholds for these phenomena to occur depend on the characteristics and timing of the stressor, thus motivating further empirical and theoretical studies into stressor characteristics.
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Affiliation(s)
- David C Elzinga
- Department of Mathematics and Statistics, University of Wisconsin-La Crosse, La Crosse, WI, 54601, USA.
- Department of Mathematics, University of Tennessee Knoxville, Knoxville, TN, 37916, USA.
| | - W Christopher Strickland
- Department of Mathematics, University of Tennessee Knoxville, Knoxville, TN, 37916, USA
- Department of Ecology and Evolutionary Biology, University of Tennessee Knoxville, Knoxville, TN, 37916, USA
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Jiang X, Zhong F, Chen Y, Shi D, Chao L, Yu L, He B, Xu C, Wu Y, Tang B, Duan H, Wang S. Novel compounds ZK-PI-5 and ZK-PI-9 regulate the reproduction of Spodoptera frugiperda (Lepidoptera: Noctuidae), with insecticide potential. JOURNAL OF ECONOMIC ENTOMOLOGY 2023; 116:1850-1861. [PMID: 37478561 DOI: 10.1093/jee/toad140] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 06/20/2023] [Accepted: 07/13/2023] [Indexed: 07/23/2023]
Abstract
Trehalase inhibitors prevent trehalase from breaking down trehalose to provide energy. Chitinase inhibitors inhibit chitinase activity affecting insect growth and development. This is an important tool for the investigation of regulation of trehalose metabolism and chitin metabolism in insect reproduction. There are few studies on trehalase or chitinase inhibitors' regulation of insect reproduction. In this study, ZK-PI-5 and ZK-PI-9 were shown to have a significant inhibitory effect on the trehalase, and ZK-PI-9 significantly inhibited chitinase activity in female pupae. We investigated the reproduction regulation of Spodoptera frugiperda using these new inhibitors and evaluated their potential as new insecticides. Compounds ZK-PI-5 and ZK-PI-9 were injected into the female pupae, and the control group was injected with solvent (2% DMSO). The results showed that the emergence failure rate for pupae treated with inhibitors increased dramatically and aberrant phenotypes such as difficulty in wings spreading occurred. The oviposition period and longevity of female adults in the treated group were significantly shorter than those in the control group, and the ovaries developed more slowly and shrank earlier. The egg hatching rate was significantly reduced by treatment with the inhibitor. These results showed that the two new compounds had a significant impact on the physiological indicators related to reproduction of S. frugiperda, and have pest control potential. This study investigated the effect of trehalase and chitin inhibitors on insect reproduction and should promote the development of green and efficient insecticides.
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Affiliation(s)
- Xinyi Jiang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P.R. China
| | - Fan Zhong
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P.R. China
| | - Yan Chen
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P.R. China
| | - Dongmei Shi
- Department of Applied Chemistry, Innovation Center of Pesticide Research, College of Science, China Agricultural University, Beijing 100193, P.R. China
| | - Lei Chao
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P.R. China
| | - Liuhe Yu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P.R. China
| | - Biner He
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P.R. China
| | - Caidi Xu
- Jing Hengyi School of Education, HangzhouNormal University, Hangzhou, Zhejiang 311121, P.R.China
| | - Yan Wu
- Key Laboratory of Surveillance and Management of Invasive Alien Species in Guizhou Education Department ,Guiyang University, Guiyang 550005, P.R.China
| | - Bin Tang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P.R. China
| | - Hongxia Duan
- Department of Applied Chemistry, Innovation Center of Pesticide Research, College of Science, China Agricultural University, Beijing 100193, P.R. China
| | - Shigui Wang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P.R. China
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Abendroth JA, Moural TW, Wei H, Zhu F. Roles of insect odorant binding proteins in communication and xenobiotic adaptation. FRONTIERS IN INSECT SCIENCE 2023; 3:1274197. [PMID: 38469469 PMCID: PMC10926425 DOI: 10.3389/finsc.2023.1274197] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 09/15/2023] [Indexed: 03/13/2024]
Abstract
Odorant binding proteins (OBPs) are small water-soluble proteins mainly associated with olfaction, facilitating the transport of odorant molecules to their relevant receptors in the sensillum lymph. While traditionally considered essential for olfaction, recent research has revealed that OBPs are engaged in a diverse range of physiological functions in modulating chemical communication and defense. Over the past 10 years, emerging evidence suggests that OBPs play vital roles in purifying the perireceptor space from unwanted xenobiotics including plant volatiles and pesticides, potentially facilitating xenobiotic adaptation, such as host location, adaptation, and pesticide resistance. This multifunctionality can be attributed, in part, to their structural variability and effectiveness in transporting, sequestering, and concealing numerous hydrophobic molecules. Here, we firstly overviewed the classification and structural properties of OBPs in diverse insect orders. Subsequently, we discussed the myriad of functional roles of insect OBPs in communication and their adaptation to xenobiotics. By synthesizing the current knowledge in this field, our review paper contributes to a comprehensive understanding of the significance of insect OBPs in chemical ecology, xenobiotic adaptation, paving the way for future research in this fascinating area of study.
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Affiliation(s)
- James A. Abendroth
- Department of Entomology, Pennsylvania State University, University Park, PA, United States
| | - Timothy W. Moural
- Department of Entomology, Pennsylvania State University, University Park, PA, United States
| | - Hongshuang Wei
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Fang Zhu
- Department of Entomology, Pennsylvania State University, University Park, PA, United States
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, United States
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Çakıcı Ö, Uysal M, Demirözer O, Gösterit A. Effects of thiamethoxam on brain structure of Bombus terrestris (Hymenoptera: Apidae) workers. CHEMOSPHERE 2023; 338:139595. [PMID: 37478985 DOI: 10.1016/j.chemosphere.2023.139595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 07/02/2023] [Accepted: 07/19/2023] [Indexed: 07/23/2023]
Abstract
Neonicotinoids are the most widely used pesticide compared to other major insecticide classes known worldwide and have the fastest growing market share. Many studies showed that neonicotinoid pesticides harm honeybee learning and farming activities, negatively affect colony adaptation and reduce pollination abilities. Bumblebees are heavily preferred species all over the world in order to ensure pollination in plant production. In this study, sublethal effects of the neonicotinoid insecticide thiamethoxam on the brain of Bombus terrestris workers were analyzed. Suspensions (1/1000, 1/100, 1/10) of the maximum recommended dose of thiamethoxam were applied to the workers. 48 h after spraying, morphological effects on the brains of workers were studied. According to area measurements of ICC's of Kenyon cells, there was a significant difference between 1/10 dose and all groups. On the other hand, areas of INC's of Kenyon cells showed a significant difference between the control group and all dose groups. Neuropil disorganization in the calyces increased gradually and differed significantly between the groups and was mostly detected at the highest dose (1/10). Apart from optic lobes, pycnotic nuclei were also observed in the middle region of calyces of mushroom bodies in the high dose group. Also, the width of the lamina, medulla and lobula parts of the optic lobes of each group and the areas of the antennal lobes were measured and significant differences were determined between the groups. The results of the study revealed that sublethal doses of thiamethoxam caused some negative impacts on brain morphology of B. terrestris workers.
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Affiliation(s)
- Özlem Çakıcı
- Ege University, Science Faculty, Biology Department, Zoology Section 35100 Bornova-Izmir, Turkey.
| | - Melis Uysal
- Ege University, Science Faculty, Biology Department, Zoology Section 35100 Bornova-Izmir, Turkey
| | - Ozan Demirözer
- Department of Plant Protection, Faculty of Agriculture, Isparta Applied Science University, 32260 Isparta, Turkey
| | - Ayhan Gösterit
- Department of Animal Science, Faculty of Agriculture, Isparta Applied Science University, 32260 Isparta, Turkey
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Nath A, Gadratagi BG, Maurya RP, Ullah F, Patil NB, Adak T, Govindharaj GPP, Ray A, Mahendiran A, Desneux N, Chandra Rath P. Sublethal phosphine fumigation induces transgenerational hormesis in a factitious host, Corcyra cephalonica. PEST MANAGEMENT SCIENCE 2023; 79:3548-3558. [PMID: 37183345 DOI: 10.1002/ps.7542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 03/31/2023] [Accepted: 05/06/2023] [Indexed: 05/16/2023]
Abstract
BACKGROUND The rice moth, Corcyra cephalonica (Stainton) (Lepidoptera: Pyralidae) is a pest of stored grains and widely used as a factitious host during the mass rearing of several natural enemies of crop pests. Hormesis is well-documented in pest insects, to some extent in natural enemies of pests. RESULTS We report transgenerational stimulatory effects of the widely used fumigant, phosphine. The study reports the consequences of sublethal, low lethal and median lethal concentrations (LC5 , LC25 and LC50 ) and untreated control for two sequential generations of the species (G1 to G2 ). In this study, we investigated the life-history traits, nutrient reserves (protein, lipid and carbohydrate) and larval gut microbiome (using 16 s rRNA V3-V4 metagenomics sequencing) of C. cephalonica. Stimulatory effects were observed for various biological traits of C. cephalonica, notably adult longevity, emergence and increased egg hatchability when exposed to LC5 of phosphine. The total protein, lipid and carbohydrate contents of C. cephalonica also were found to be significantly increased by LC5 in both generations. The microbial diversity of LC5 treated larval gut was higher and found to be different from the rest of the treatments. This is the first report showing hormesis to a fumigant insecticide. CONCLUSION Our findings increase knowledge on the interaction between hormesis, nutrient reserves and gut bacteria in C. cephalonica exposed to insecticides. Overall, the present study establishes phosphine-induced hormesis at LC5 in the host C. cephalonica, which might help improve the quality of mass rearing of various natural enemies. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Anshuman Nath
- Department of Entomology, College of Agriculture, G.B. Pant University of Agriculture and Technology, Pantnagar, India
- Crop Protection Division, ICAR-National Rice Research Institute, Cuttack, Odisha, India
| | | | - Ravi Prakash Maurya
- Department of Entomology, College of Agriculture, G.B. Pant University of Agriculture and Technology, Pantnagar, India
| | - Farman Ullah
- Department of Plant Biosecurity, College of Plant Protection, China Agricultural University, Beijing, China
- Key Laboratory of Surveillance and Management for Plant Quarantine Pests, Ministry of Agriculture and Rural Affairs, Beijing, P. R. China
| | - Naveenkumar B Patil
- Crop Protection Division, ICAR-National Rice Research Institute, Cuttack, Odisha, India
| | - Totan Adak
- Crop Protection Division, ICAR-National Rice Research Institute, Cuttack, Odisha, India
| | | | - Aishwarya Ray
- Crop Protection Division, ICAR-National Rice Research Institute, Cuttack, Odisha, India
- Department of Entomology, College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur, India
| | - Annamalai Mahendiran
- Crop Protection Division, ICAR-National Rice Research Institute, Cuttack, Odisha, India
| | | | - Prakash Chandra Rath
- Crop Protection Division, ICAR-National Rice Research Institute, Cuttack, Odisha, India
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Ray A, Gadratagi BG, Budhlakoti N, Rana DK, Adak T, Govindharaj GPP, Patil NB, Mahendiran A, Rath PC. Functional response of an egg parasitoid, Trichogramma chilonis Ishii to sublethal imidacloprid exposure. PEST MANAGEMENT SCIENCE 2023; 79:3656-3665. [PMID: 37178406 DOI: 10.1002/ps.7540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 05/09/2023] [Accepted: 05/10/2023] [Indexed: 05/15/2023]
Abstract
BACKGROUND The effectiveness of a biological control agent depends on how well it can control pests and how compatible it is with pesticides. Therefore, we reported the multigenerational effect of a commonly used insecticide, imidacloprid, on the functional response of a widely acclaimed egg parasitoid, Trichogramma chilonis Ishii, to different densities of the host Corcyra cephalonica Stainton eggs. The study investigated the outcomes of the median lethal concentration (LC50 ) and sublethal concentrations (LC5 , LC30 ), along with control treatments for five continuous generations (F1 to F5 ). RESULTS The results showed that the F5 generation of LC30 , both of the F1 and F5 generations of LC50 , and the control all had a Type II functional response. A Type I functional response was exhibited for the F1 generation of LC30 and both generations of LC5 . The attack rate on host eggs treated with LC5 and LC30 did not change (decrease) with the shift in the type of functional response as compared to the control. A significant increase in the searching efficiency (a) was observed in the later generation (F5 ) under the exposure of LC5 and LC30 imidacloprid concentrations. A lower handling time (Th ) in both generations of the LC5 followed by LC30 treated individuals was observed when compared with the control and LC50 treatments. The per capita parasitization efficiency (1/Th ) and the rate of parasitization per handling time (a/Th ) were also considerably higher in both the generations of LC5 and LC30 than in the control and LC50 , thereby implying positive effects of imidacloprid on the parasitization potential of T. chilonis. CONCLUSION Altogether, these multigenerational outcomes on the functional response of T. chilonis could be leveraged to control the intractable lepidopteran pests under the mild exposure of imidacloprid in integrated pest management (IPM) programs as well as in the mass rearing of the parasitoid, T. chilonis. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Aishwarya Ray
- Department of Entomology, College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur, India
- Crop Protection Division, ICAR - National Rice Research Institute, Cuttack, India
| | | | - Neeraj Budhlakoti
- Division of Agricultural Bioinformatics, ICAR - Indian Agricultural Statistics Research Institute, New Delhi, India
| | - Dhanendra Kumar Rana
- Department of Entomology, College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur, India
| | - Totan Adak
- Crop Protection Division, ICAR - National Rice Research Institute, Cuttack, India
| | | | | | - Annamalai Mahendiran
- Crop Protection Division, ICAR - National Rice Research Institute, Cuttack, India
| | - Prakash Chandra Rath
- Crop Protection Division, ICAR - National Rice Research Institute, Cuttack, India
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Zilnik G, Bergeron PE, Chuang A, Diepenbrock L, Hanel A, Middleton E, Moretti E, Schmidt-Jeffris R. Meta-Analysis of Herbicide Non-Target Effects on Pest Natural Enemies. INSECTS 2023; 14:787. [PMID: 37887799 PMCID: PMC10607068 DOI: 10.3390/insects14100787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 09/08/2023] [Accepted: 09/18/2023] [Indexed: 10/28/2023]
Abstract
A critical component of integrated pest management is minimizing disruption of biological control by reducing the use of pesticides with significant non-target effects on natural enemies. Insecticide non-target effects testing for natural enemies has become increasingly common, but research examining the non-target effects of herbicides on natural enemies is scarce, and recommendations regarding herbicide selectivity are non-existent. We used meta-analysis to summarize laboratory bioassays testing non-target effects of herbicides on arthropod natural enemies and identify patterns in taxon susceptibility and active ingredient toxicity. Data were extracted from 78 papers representing 801 total observations. Herbicides increased natural enemy mortality and decreased longevity, reproduction, and predation. Mesostigmatan mites and hemipterans were the most sensitive to herbicides, and spiders, neuropterans, and hymenopterans were the least sensitive. Mortality was higher in juvenile predators versus parasitoids but did not differ between adults; parasitoid juveniles are likely better protected within the host. In terms of acute mortality, metribuzin, glufosinate, and oxyfluorfen were the most harmful herbicides. Only nicosulfuron, rimsulfuron, pendimethalin, phenmedipham, atrazine, and urea did not increase natural enemy mortality. The large effect size of glufosinate is particularly concerning, as it is the most likely replacement herbicide for glyphosate in many crops. Many active ingredients remain under-studied. Our analysis indicates that herbicides have a strong potential to disrupt biological control in cropping systems.
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Affiliation(s)
- Gabriel Zilnik
- Temperate Tree Fruit and Vegetable Crop Research Unit, United States Department of Agriculture-Agricultural Research Service, 5230 Konnowac Pass Road, Wapato, WA 98951, USA; (E.M.); (R.S.-J.)
| | - Paul E. Bergeron
- Department of Entomology, Washington State University, 166 FSHN 100 Dairy Road, Pullman, WA 99164, USA; (P.E.B.); (A.H.)
| | - Angela Chuang
- Entomology and Nematology Department, Citrus Research and Education Center, University of Florida, 700 Experiment Station Rd., Lake Alfred, FL 33850, USA; (A.C.); (L.D.)
| | - Lauren Diepenbrock
- Entomology and Nematology Department, Citrus Research and Education Center, University of Florida, 700 Experiment Station Rd., Lake Alfred, FL 33850, USA; (A.C.); (L.D.)
| | - Aldo Hanel
- Department of Entomology, Washington State University, 166 FSHN 100 Dairy Road, Pullman, WA 99164, USA; (P.E.B.); (A.H.)
| | - Eric Middleton
- Division of Agriculture and Natural Resources, University of California Agriculture and Natural Resources, 9335 Hazard Way Suite 201, San Diego, CA 92123, USA;
| | - Erica Moretti
- Temperate Tree Fruit and Vegetable Crop Research Unit, United States Department of Agriculture-Agricultural Research Service, 5230 Konnowac Pass Road, Wapato, WA 98951, USA; (E.M.); (R.S.-J.)
| | - Rebecca Schmidt-Jeffris
- Temperate Tree Fruit and Vegetable Crop Research Unit, United States Department of Agriculture-Agricultural Research Service, 5230 Konnowac Pass Road, Wapato, WA 98951, USA; (E.M.); (R.S.-J.)
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129
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Gong Y, Li T, Hussain A, Xia X, Shang Q, Ali A. Editorial: The side effects of insecticides on insects and the adaptation mechanisms of insects to insecticides. Front Physiol 2023; 14:1287219. [PMID: 37811494 PMCID: PMC10557070 DOI: 10.3389/fphys.2023.1287219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 09/18/2023] [Indexed: 10/10/2023] Open
Affiliation(s)
- Youhui Gong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ting Li
- Department of Biological Sciences, Alabama State University, Montgomery, AL, United States
| | - Adil Hussain
- Department of Entomology, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Xiaoming Xia
- The College of Plant Protection, Shangdong Agricultural University, Taian, China
| | - Qiangli Shang
- College of Plant Science, Jilin University, Changchun, China
| | - Asad Ali
- Department of Entomology, Abdul Wali Khan University Mardan, Mardan, Pakistan
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Wu WY, Liao LH, Lin CH, Johnson RM, Berenbaum MR. Effects of pesticide-adjuvant combinations used in almond orchards on olfactory responses to social signals in honey bees (Apis mellifera). Sci Rep 2023; 13:15577. [PMID: 37730836 PMCID: PMC10511525 DOI: 10.1038/s41598-023-41818-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 08/31/2023] [Indexed: 09/22/2023] Open
Abstract
Exposure to agrochemical sprays containing pesticides and tank-mix adjuvants has been implicated in post-bloom mortality, particularly of brood, in honey bee colonies brought into California almond orchards for pollination. Although adjuvants are generally considered to be biologically inert, some adjuvants have exhibited toxicity and sublethal effects, including decreasing survival rates of next-generation queens. Honey bees have a highly developed olfactory system to detect and discriminate among social signals. To investigate the impact of pesticide-adjuvant combinations on honey bee signal perception, we performed electroantennography assays to assess alterations in their olfactory responsiveness to the brood ester pheromone (BEP), the volatile larval pheromone β-ocimene, and the alarm pheromone 2-heptanone. These assays aimed to uncover potential mechanisms underlying changes in social behaviors and reduced brood survival after pesticide exposure. We found that combining the adjuvant Dyne-Amic with the fungicide Tilt (propiconazole) and the insecticide Altacor (chlorantraniliprole) synergistically enhanced olfactory responses to three concentrations of BEP and as well exerted dampening and compensatory effects on responses to 2-heptanone and β-ocimene, respectively. In contrast, exposure to adjuvant alone or the combination of fungicide and insecticide had no effect on olfactory responses to BEP at most concentrations but altered responses to β-ocimene and 2-heptanone. Exposure to Dyne-Amic, Altacor, and Tilt increased BEP signal amplitude, indicating potential changes in olfactory receptor sensitivity or sensilla permeability to odorants. Given that, in a previous study, next-generation queens raised by nurses exposed to the same treated pollen experienced reduced survival, these new findings highlight the potential disruption of social signaling in honey bees and its implications for colony reproductive success.
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Affiliation(s)
- Wen-Yen Wu
- Department of Entomology, University of Illinois Urbana-Champaign, 505 S. Goodwin Avenue, Urbana, IL, 61801, USA
| | - Ling-Hsiu Liao
- Department of Entomology, University of Illinois Urbana-Champaign, 505 S. Goodwin Avenue, Urbana, IL, 61801, USA.
| | - Chia-Hua Lin
- Department of Entomology, Rothenbuhler Honey Bee Research Laboratory, The Ohio State University, 2501 Carmack Road, Columbus, OH, 43210, USA
| | - Reed M Johnson
- Department of Entomology, Rothenbuhler Honey Bee Research Laboratory, The Ohio State University, 2501 Carmack Road, Columbus, OH, 43210, USA
| | - May R Berenbaum
- Department of Entomology, University of Illinois Urbana-Champaign, 505 S. Goodwin Avenue, Urbana, IL, 61801, USA
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131
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Hester KP, Stoner KA, Eitzer BD, Koethe RW, Lehmann DM. Pesticide residues in honey bee (Apis mellifera) pollen collected in two ornamental plant nurseries in Connecticut: Implications for bee health and risk assessment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 333:122037. [PMID: 37348699 PMCID: PMC10732578 DOI: 10.1016/j.envpol.2023.122037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/01/2023] [Accepted: 06/12/2023] [Indexed: 06/24/2023]
Abstract
Honey bees (Apis mellifera L.) are one of the most important managed pollinators of agricultural crops. While potential effects of agricultural pesticides on honey bee health have been investigated in some settings, risks to honey bees associated with exposures occurring in the plant nursery setting have received little attention. We sought to identify and quantify pesticide levels present in honey bee-collected pollen harvested in two ornamental plant nurseries (i.e., Nursery A and Nursery B) in Connecticut. From June to September 2018, pollen was collected weekly from 8 colonies using bottom-mounted pollen traps. Fifty-five unique pesticides (including related metabolites) were detected: 24 insecticides, 20 fungicides, and 11 herbicides. Some of the pesticide contaminants detected in the pollen had not been applied by the nurseries, indicating that the honey bee colonies did not exclusively forage on pollen at their respective nursery. The average number of pesticides per sample was similar at both nurseries (i.e., 12.9 at Nursery A and 14.2 at Nursery B). To estimate the potential risk posed to honey bees from these samples, we utilized the USEPA's BeeREX tool to calculate risk quotients (RQs) for each pesticide within each sample. The median aggregate RQ for nurse bees was 0.003 at both nurseries, well below the acute risk level of concern (LOC) of ≥0.4. We also calculated RQs for larvae due to their increased sensitivity to certain pesticides. In total, 6 samples had larval RQs above the LOC (0.45-2.51), resulting from the organophosphate insecticide diazinon. Since 2015, the frequency and amount of diazinon detected in pollen increased at one of our study locations, potentially due to pressure to reduce the use of neonicotinoid insecticides. Overall, these data highlight the importance of considering all life stages when estimating potential risk to honey bee colonies from pesticide exposure.
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Affiliation(s)
- K P Hester
- Center for Public Health and Environmental Assessment, Health and Environmental Effects Assessment Division, Integrated Health Assessment Branch, U.S. Environmental Protection Agency, Research Triangle Park, NC, 27711, USA
| | - K A Stoner
- Retired, Connecticut Agricultural Experiment Station, New Haven, CT, 06504, USA
| | - B D Eitzer
- Retired, Connecticut Agricultural Experiment Station, New Haven, CT, 06504, USA
| | - R W Koethe
- Region 1 Office, Land, Chemicals and Redevelopment Division, RCRA Waste, Underground Storage Tanks and Pesticides Section, U.S. Environmental Protection Agency, Boston, MA, 02109, USA
| | - D M Lehmann
- Center for Public Health and Environmental Assessment, Health and Environmental Effects Assessment Division, Integrated Health Assessment Branch, U.S. Environmental Protection Agency, Research Triangle Park, NC, 27711, USA.
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Godoy DN, Pretto VE, de Almeida PG, Weschenfelder MAG, Warpechowski LF, Horikoshi RJ, Martinelli S, Head GP, Bernardi O. Dose Effects of Flubendiamide and Thiodicarb against Spodoptera Species Developing on Bt and Non-Bt Soybean. INSECTS 2023; 14:766. [PMID: 37754734 PMCID: PMC10532366 DOI: 10.3390/insects14090766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 09/10/2023] [Accepted: 09/11/2023] [Indexed: 09/28/2023]
Abstract
An increase in Spodoptera species was reported in Bt soybean fields expressing Cry1Ac insecticidal proteins in Brazil, requiring additional management with chemical insecticides. Here, we evaluated the dose effects of flubendiamide and thiodicarb on Spodoptera cosmioides (Walker, 1858), Spodoptera eridania (Stoll, 1782), Spodoptera albula (Walker, 1857) and Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) that survived on MON 87751 × MON 87708 × MON 87701 × MON 89788, expressing Cry1A.105, Cry2Ab2 and Cry1Ac; MON 87701 × MON 89788 soybean, expressing Cry1Ac; and non-Bt soybean. On unsprayed Cry1A.105/Cry2Ab2/Cry1Ac soybean, only S. frugiperda showed ~60% mortality after 10 d, whereas S. cosmioides, S. eridania and S. albula showed >81% mortality. The surviving larvae of all species on this Bt soybean showed >80% mortality when exposed to the field label dose of flubendiamide (70 mL/ha) or thiodicarb (400 g/ha) or at 50% of these doses. In contrast, all four species had <25% and <19% mortality on Cry1Ac and non-Bt soybean, respectively. The surviving S. cosmioides, S. eridania and S. albula on these soybean types presented >83% mortality after exposure to both dose levels of flubendiamide and thiodicarb. Some S. frugiperda larvae surviving on Cry1Ac and non-Bt soybean sprayed with a 50% dose of either insecticide developed into adults. However, the L1 larvae developing on Cry1Ac soybean leaves sprayed with flubendiamide and the L2 larvae on this soybean sprayed with thiodicarb had a prolonged immature stage, and the females displayed lower fecundity, which are likely to impact S. frugiperda population growth on soybean.
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Affiliation(s)
- Daniela N. Godoy
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima Avenue 1000, Santa Maria 97105-900, Brazil; (D.N.G.); (V.E.P.); (P.G.d.A.); (M.A.G.W.); (L.F.W.)
| | - Venicius E. Pretto
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima Avenue 1000, Santa Maria 97105-900, Brazil; (D.N.G.); (V.E.P.); (P.G.d.A.); (M.A.G.W.); (L.F.W.)
| | - Poliana G. de Almeida
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima Avenue 1000, Santa Maria 97105-900, Brazil; (D.N.G.); (V.E.P.); (P.G.d.A.); (M.A.G.W.); (L.F.W.)
| | - Marlon A. G. Weschenfelder
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima Avenue 1000, Santa Maria 97105-900, Brazil; (D.N.G.); (V.E.P.); (P.G.d.A.); (M.A.G.W.); (L.F.W.)
| | - Luiz F. Warpechowski
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima Avenue 1000, Santa Maria 97105-900, Brazil; (D.N.G.); (V.E.P.); (P.G.d.A.); (M.A.G.W.); (L.F.W.)
| | | | - Samuel Martinelli
- Regulatory Science, Bayer Crop Science, Chesterfield, MO 63017, USA; (S.M.); (G.P.H.)
| | - Graham P. Head
- Regulatory Science, Bayer Crop Science, Chesterfield, MO 63017, USA; (S.M.); (G.P.H.)
| | - Oderlei Bernardi
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima Avenue 1000, Santa Maria 97105-900, Brazil; (D.N.G.); (V.E.P.); (P.G.d.A.); (M.A.G.W.); (L.F.W.)
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133
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Svoboda J, Pech P, Heneberg P. Low concentrations of acetamiprid, deltamethrin, and sulfoxaflor, three commonly used insecticides, adversely affect ant queen survival and egg laying. Sci Rep 2023; 13:14893. [PMID: 37689830 PMCID: PMC10492783 DOI: 10.1038/s41598-023-42129-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 09/05/2023] [Indexed: 09/11/2023] Open
Abstract
Ants are key ecosystem service providers and can serve as important biological control agents in pest management. However, the effects of insecticides on common farmland ant species are poorly understood. We tested the effects of three commonly used insecticides on ants (Hymenoptera, Formicidae). The tested insecticides were acetamiprid (neonicotinoid; formulated as Mospilan 20 SP), deltamethrin (pyrethroid; formulated as Sanium Ultra), and sulfoxaflor (sulfilimine; formulated as Gondola). We tested two ant (Hymenoptera: Formicidae) species with different colony founding strategies, Lasius niger (Linnaeus, 1758) and Myrmica rubra (Linnaeus, 1758). We sprayed their queens with insecticides at concentrations recommended for use in foliar applications in agriculture, i.e., at 1.25 g L-1 (acetamiprid), 0.6 g L-1 (sulfoxaflor), and 0.875 g L-1 (deltamethrin). Further, we diluted the compounds in distilled water and tested them at 10%, 1%, and 0.1% of the field-recommended concentrations, and used distilled water as a control. We monitored the survival of the queens and the number of eggs laid. All three tested insecticides caused severe lethal and sublethal concentration-dependent effects. Even at concentrations three orders of magnitudes lower than recommended for field applications, significantly lower numbers of eggs were found in the queens' nests. The extent of the sublethal effects of acetamiprid and sulfoxaflor was concentration-dependent and differed between the two ant species. Besides bees and bumblebees, ants represent an important group of hymenopterans that are severely affected even by low concentrations of the tested compounds and therefore should be included in risk assessment schemes.
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Affiliation(s)
- Jakub Svoboda
- Faculty of Science, University of Hradec Králové, Hradec Králové, Czech Republic
| | - Pavel Pech
- Research and Breeding Institute of Pomology Holovousy Ltd., 508 01, Holovousy 129, Czech Republic
| | - Petr Heneberg
- Third Faculty of Medicine, Charles University, Ruská 87, 100 00, Prague, Czech Republic.
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Pons DG, Herrera C, Torrens-Mas M, Leza M, Sastre-Serra J. Sublethal doses of glyphosate modulates mitochondria and oxidative stress in honeybees by direct feeding. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2023; 114:e22028. [PMID: 37259187 DOI: 10.1002/arch.22028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 05/18/2023] [Accepted: 05/22/2023] [Indexed: 06/02/2023]
Abstract
Honeybees are essential for the ecosystem maintenance and for plant production in agriculture. Glyphosate is a broad-spectrum systemic herbicide widely used in crops to control weeds and could affect honeybees' health in sublethal doses. Our aim was to study how sublethal doses of glyphosate affects to oxidative stress and mitochondrial homeostasis in honeybees. We exposed honeybees to glyphosate at 5 and 10 mg·l-1 for 2 and 10 h for the gene expression analysis by reverse transcription polymerase chain reaction and for 48 and 72 h for the antioxidant enzymes activity and lipid peroxidation determination. We observed a general increase in antioxidant- and mitochondrial-related genes expression in honeybees after 2 h of exposition to glyphosate, as well as a rise in catalase and superoxide dismutase enzymatic activity after 48 h and an increment in lipid peroxidation adducts generation after 72 h. These results suggest a direct effect of glyphosate on honeybees' health, with an insufficient response of the antioxidant system to the generated oxidative stress, resulting in an increase in lipid peroxidation and, therefore, oxidative damage. Altogether, results obtained in this work demonstrate that sublethal treatments of glyphosate could directly affect honeybee individuals under laboratory conditions. Therefore, it is necessary to investigate alternatives to glyphosate to determine if they are less harmful to non-target organisms.
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Affiliation(s)
- Daniel Gabriel Pons
- Grupo Multidisciplinar de Oncología Traslacional, Institut Universitari d´Investigació en Ciències de la Salut (IUNICS), University of the Balearic Islands, Palma de Mallorca, Illes Balears, Spain
- Instituto de Investigación Sanitaria de las Islas Baleares (IdISBa), Hospital Universitario Son Espases, edificio S, Palma de Mallorca, Illes Balears, Spain
| | - Cayetano Herrera
- Department of Biology (Zoology), University of the Balearic Islands, Palma, Balearic Islands, Spain
| | - Margalida Torrens-Mas
- Grupo Multidisciplinar de Oncología Traslacional, Institut Universitari d´Investigació en Ciències de la Salut (IUNICS), University of the Balearic Islands, Palma de Mallorca, Illes Balears, Spain
- Instituto de Investigación Sanitaria de las Islas Baleares (IdISBa), Hospital Universitario Son Espases, edificio S, Palma de Mallorca, Illes Balears, Spain
- Translational Research In Aging and Longevity (TRIAL) Health Research Institute of the Balearic Islands (IdISBa), Palma de Mallorca, Spain
| | - Mar Leza
- Department of Biology (Zoology), University of the Balearic Islands, Palma, Balearic Islands, Spain
| | - Jorge Sastre-Serra
- Grupo Multidisciplinar de Oncología Traslacional, Institut Universitari d´Investigació en Ciències de la Salut (IUNICS), University of the Balearic Islands, Palma de Mallorca, Illes Balears, Spain
- Instituto de Investigación Sanitaria de las Islas Baleares (IdISBa), Hospital Universitario Son Espases, edificio S, Palma de Mallorca, Illes Balears, Spain
- Ciber Fisiopatología Obesidad y Nutrición (CB06/03) Instituto Salud Carlos III, Madrid, Spain
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Wei E, He P, Wang R, Xu S, Zhang Y, Wang Q, Tang X, Shen Z. Afidopyropen suppresses silkworm growth and vitality by affecting carbohydrate metabolism and immune function. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 195:105568. [PMID: 37666622 DOI: 10.1016/j.pestbp.2023.105568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 08/04/2023] [Accepted: 08/04/2023] [Indexed: 09/06/2023]
Abstract
Afidopyropen has strong insecticidal toxicity to sucking pests by silencing the vanilloid-type transient receptor potential (TRPV) channels. However, the toxicity of afidopyropen to the Lepidoptera model insect silkworm remain unknown. In this study, the LC50 of afidopyropen to the silkworm at 72 h exposure was 256.82 mg/L. This indicates that afidopyropen is moderately toxic to the silkworm. Long-term exposure to concentrations of 100 mg/L, or less, of afidopyropen, significantly reduced silkworm growth, vitality, silk protein synthesis, and fecundity. A total of 220 differentially expressed genes (DEGs) were detected by transcriptome sequencing, among which 166 were downregulated and 54 were upregulated. Gene Ontology (GO) enrichment analysis showed that the DEGs were enriched in the immune system, immune response and carbohydrate metabolism. Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis indicated that DEGs were primarily concentrated in carbohydrate metabolism and biosynthesis of neomycin, kanamycin and gentamicin. Genes related to carbohydrate metabolism and immune system pathways in silkworm were detected by quantitative real-time PCR. The results showed that the genes related to carbohydrate metabolism, silk protein synthesis, and immune response were significantly downregulated. These genes included BCL-6 corepressor-like protein 1 (BCORL1), hexokinase type 2 (HEXO2), phosphoserine aminotransferase 1 (PSAT1), relish (Rel), peptidoglycan recognition protein 2 (PGRP2) and 27 kda glycoprotein precursor (P27K). The data demonstrated the toxic effects of afidopyropen against the silkworm and its regulation of genes responsible for immune function and abscissa carbohydrate metabolism.
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Affiliation(s)
- Erjun Wei
- Jiangsu University of Science and Technology, Zhenjiang, People's Republic of China
| | - Ping He
- Jiangsu University of Science and Technology, Zhenjiang, People's Republic of China
| | - Runpeng Wang
- Jiangsu University of Science and Technology, Zhenjiang, People's Republic of China
| | - Sheng Xu
- Jiangsu University of Science and Technology, Zhenjiang, People's Republic of China
| | - Yiling Zhang
- Jiangsu University of Science and Technology, Zhenjiang, People's Republic of China; Sericulture Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, People's Republic of China
| | - Qiang Wang
- Jiangsu University of Science and Technology, Zhenjiang, People's Republic of China; Sericulture Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, People's Republic of China
| | - Xudong Tang
- Jiangsu University of Science and Technology, Zhenjiang, People's Republic of China; Sericulture Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, People's Republic of China
| | - Zhongyuan Shen
- Jiangsu University of Science and Technology, Zhenjiang, People's Republic of China; Sericulture Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, People's Republic of China.
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Gomes IN, Gontijo LM, Lima MAP, Zanuncio JS, Resende HC. The survival and flight capacity of commercial honeybees and endangered stingless bees are impaired by common agrochemicals. ECOTOXICOLOGY (LONDON, ENGLAND) 2023; 32:937-947. [PMID: 37733275 DOI: 10.1007/s10646-023-02699-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/13/2023] [Indexed: 09/22/2023]
Abstract
The impact of agrochemicals on native Brazilian bees may be underestimated, since studies of non-target effects on bees have, by and large, concerned mostly the Apis mellifera L. Furthermore, bees may be exposed in the field to multiple agrochemicals through different routes, thus suggesting the necessity for more comprehensive toxicological experiments. Here, we assessed the lethal and sublethal toxicity of multiple agrochemicals (herbicide [glyphosate - Roundup®], fungicide [mancozeb], insecticide [thiamethoxam]) through distinct routes of exposure (contact or ingestion) to an endangered native Brazilian bee Melipona (Michmelia) capixaba Moure & Camargo, 1994 and to A. mellifera. Results indicate that none of the agrochemicals caused feeding repellency on the bees. Thiamethoxam caused high mortality of both species, regardless of the route of exposure or the dose used. In addition, thiametoxam altered the flight capacity of M. capixaba when exposed to the lowest dose via contact exposure. The field dose of glyphosate caused high mortality of both bee species after oral exposure as well as impaired the flight capacity of A. mellifera (ingestion exposure) and M. capixaba (contact exposure). The lower dose of glyphosate also impaired the flight of M. capixaba through either routes of exposure. Exposure of A. mellifera through contact and ingestion to both doses of mancozeb caused high mortality and significantly impaired flight capacity. Taken altogether, the results highlight the importance of testing the impact of multiple agrochemicals (i.e. not just insecticides) through different routes of exposure in order to understand more comprehensively the potential risks for Apis and non-Apis bees.
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Affiliation(s)
- Ingrid N Gomes
- Programa de Pós Graduação em Manejo e Conservação de Ecossistemas Naturais e Agrários, Universidade Federal de Viçosa - Campus Florestal, Florestal, MG, Brazil.
- Laboratório de Genética da Conservação de Abelhas - LaBee. Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Viçosa, - Campus Florestal, Florestal, MG, Brazil.
- Centro de Síntese Ecológica e Conservação, Departamento de Genética Ecologia e Evolução - ICB, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
- Programa de Pós Graduação em Ecologia, Conservação e Manejo da Vida Silvestre, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
| | - Lessando Moreira Gontijo
- Programa de Pós Graduação em Manejo e Conservação de Ecossistemas Naturais e Agrários, Universidade Federal de Viçosa - Campus Florestal, Florestal, MG, Brazil
| | | | - José Salazar Zanuncio
- Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural-Incaper, Fazenda Experimental Mendes da Fonseca, Domingos Martins, ES, Brazil
| | - Helder Canto Resende
- Programa de Pós Graduação em Manejo e Conservação de Ecossistemas Naturais e Agrários, Universidade Federal de Viçosa - Campus Florestal, Florestal, MG, Brazil
- Laboratório de Genética da Conservação de Abelhas - LaBee. Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Viçosa, - Campus Florestal, Florestal, MG, Brazil
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de Sousa Neto EP, Mendes JDA, Filgueiras RMC, de Lima DB, Guedes RNC, Melo JWS. Acaricide exposure impairs predatory behavior of the phytoseiid mite Neoseiulus idaeus (Acari: Phytoseiidae). JOURNAL OF ECONOMIC ENTOMOLOGY 2023; 116:1225-1232. [PMID: 37402615 DOI: 10.1093/jee/toad127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/29/2023] [Accepted: 06/21/2023] [Indexed: 07/06/2023]
Abstract
Predation is an important interaction that can change the structure of arthropod communities across both temporal and spatial scales. In agricultural systems predation can reduce the population levels of several arthropod pest species of a community. This predator-prey interaction involves the predator searching and handling behaviors. Several factors can affect this interaction, such as pesticide exposure, which is a frequent feature in agroecosystems. Thus, the hypothesis of our study is that the predatory behavior of the phytoseiid mite Neoseiulus idaeus Denmark & Muma, an important natural enemy of spider mites, is affected by acaricide exposure. To test that hypothesis, the predatory mite was exposed to the acaricides abamectin, fenpyroximate, and azadirachtin in 4 exposure scenarios. The predatory behavior of N. idaeus was negatively affected by acaricide exposure when the leaf surface containing both prey and predator was sprayed leading to a reduction in the frequency of transitions between predator walking and meeting preys. Prey handling and consumption were also compromised by acaricide exposure through contaminated leaf surface and prey, and contaminated leaf surface, prey, and predator. Abamectin compromised predation regardless of the exposure scenario. Acaricide-exposure reduced the number of prey found, number of attacks, and number prey killed by N. idaeus. Moreover, partial prey consumption was observed with acaricide-exposed mites. Thus, caution is necessary while attempting to integrate acaricide applications and mass release of N. idaeus for spider mite management.
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Affiliation(s)
| | | | | | - Debora B de Lima
- Departamento de Zoologia, Universidade Federal de Pernambuco, Dois Irmãos, Recife, Pernambuco, Brazil
| | - Raul Narciso C Guedes
- Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | - José W S Melo
- Departamento de Zoologia, Universidade Federal de Pernambuco, Dois Irmãos, Recife, Pernambuco, Brazil
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138
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Shi M, Guo Y, Wu YY, Dai PL, Dai SJ, Diao QY, Gao J. Acute and chronic effects of sublethal neonicotinoid thiacloprid to Asian honey bee (Apis cerana cerana). PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 194:105483. [PMID: 37532314 DOI: 10.1016/j.pestbp.2023.105483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 04/16/2023] [Accepted: 05/26/2023] [Indexed: 08/04/2023]
Abstract
Pesticide pollution is one of the most important factors for global bee declines. Despite many studies have revealed that the most important Chinese indigenous species,Apis cerana, is presenting a high risk on exposure to neonicotinoids, the toxicology information on Apis cerana remain limited. This study was aimed to determine the acute and chronic toxic effects of thiacloprid (IUPAC name: {(2Z)-3-[(6-Chloro-3-pyridinyl)methyl]-1,3-thiazolidin-2-ylidene}cyanamide) on behavioral and physiological performance as well as genome-wide transcriptome in A. cerana. We found the 1/5 LC50 of thiacloprid significantly impaired learning and memory abilities after both acute and chronic exposure, nevertheless, has no effects on the sucrose responsiveness and phototaxis climbing ability of A. cerana. Moreover, activities of detoxification enzyme P450 monooxygenases and CarE were increased by short-term exposure to thiacloprid, while prolonged exposure caused suppression of CarE activity. Neither acute nor chronic exposure to thiacloprid altered honey bee AChE activities. To further study the potential defense molecular mechanisms in Asian honey bee under pesticide stress, we analyzed the transcriptomes of honeybees in response to thiacloprid stress. The transcriptomic profiles revealed consistent upregulation of immune- and stress-related genes by both acute or chronic treatments. Our results suggest that the chronic exposure to thiacloprid produced greater toxic effects than a single administration to A. cerana. Altogether, our study deepens the understanding of the toxicological characteristic of A. cerana against thiacloprid, and could be used to further investigate the complex molecular mechanisms in Asian honey bee under pesticide stress.
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Affiliation(s)
- Min Shi
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China; Development Center of Plant Germplasm Resources, College of Life Sciences, Shanghai Normal University, Shanghai 201418, China
| | - Yi Guo
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China
| | - Yan-Yan Wu
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China
| | - Ping-Li Dai
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China
| | - Shao-Jun Dai
- Development Center of Plant Germplasm Resources, College of Life Sciences, Shanghai Normal University, Shanghai 201418, China
| | - Qing-Yun Diao
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China.
| | - Jing Gao
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China.
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139
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Ren Z, Cai T, Wan Y, Zeng Q, Li C, Zhang J, Ma K, He S, Li J, Wan H. Unintended consequences: Disrupting microbial communities of Nilaparvata lugens with non-target pesticides. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 194:105522. [PMID: 37532306 DOI: 10.1016/j.pestbp.2023.105522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 07/01/2023] [Accepted: 07/05/2023] [Indexed: 08/04/2023]
Abstract
Insects are frequently exposed to a range of insecticides that can alter the structure of the commensal microbiome. However, the effects of exposure to non-target pesticides (including non-target insecticides and fungicides) on insect pest microbiomes are still unclear. In the present study, we exposed Nilaparvata lugens to three target insecticides (nitenpyram, pymetrozine, and avermectin), a non-target insecticide (chlorantraniliprole), and two fungicides (propiconazole and tebuconazole), and observed changes in the microbiome's structure and function. Our results showed that both non-target insecticide and fungicides can disrupt the microbiome's structure. Specifically, symbiotic bacteria of N. lugens were more sensitive to non-target insecticide compared to target insecticide, while the symbiotic fungi were more sensitive to fungicides. We also found that the microbiome in the field strain was more stable under pesticides exposure than the laboratory strain (a susceptible strain), and core microbial species g_Pseudomonas, s_Acinetobacter soli, g_Lactobacillus, s_Metarhizium minus, and s_Penicillium citrinum were significantly affected by specifically pesticides. Furthermore, the functions of symbiotic bacteria in nutrient synthesis were predicted to be significantly reduced by non-target insecticide. Our findings contribute to a better understanding of the impact of non-target pesticides on insect microbial communities and highlight the need for scientific and rational use of pesticides.
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Affiliation(s)
- Zhijie Ren
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Tingwei Cai
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yue Wan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Qinghong Zeng
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Chengyue Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Junjie Zhang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Kangsheng Ma
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Shun He
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jianhong Li
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Hu Wan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
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140
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Tang LD, Guo LH, Shen Z, Chen YM, Zang LS. Comparison of the biology of Frankliniella intonsa and Megalurothrips usitatus on cowpea pods under natural regimes through an age-stage, two-sex life table approach. BULLETIN OF ENTOMOLOGICAL RESEARCH 2023; 113:555-564. [PMID: 37350316 DOI: 10.1017/s0007485323000238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/24/2023]
Abstract
Two thrips, Megalurothrips usitatus (Bagnall) and Frankliniella intonsa (Trybom) are major pests of cowpea in South China. To realistically compare the growth, development and reproductive characteristics of these two thrips species, we compared their age-stage, two-sex life tables on cowpea pods under summer and winter natural environmental regimes. The results showed that the total preadult period of M. usitatus was 8.09 days, which was significantly longer than that of F. intonsa (7.06 days), while the adult female longevity of M. usitatus (21.14 days) was significantly shorter than that of F. intonsa (25.77 days). Significant differences were showed in male adult longevity (10.68 days for F. intonsa and 16.95 days for M. usitatus) and the female ratio of offspring (0.67 for F. intonsa and 0.51 for M. usitatus), and the total preadult period of M. usitatus (16.20 days) was significantly longer than that of F. intonsa (13.66 days) in the winter regime. The net reproductive rate (summer: R0 = 85.62, winter: R0 = 105.22), intrinsic rate of increase (summer: r = 0.3020 day-1, winter: r = 0.2115 day-1), finite rate of increase (summer: λ = 1.3526 day-1, winter: λ = 1.2356 day-1) and gross reproduction rate (summer: GRR = 139.34, winter: GRR = 159.88) of F. intonsa were higher than those of M. usitatus (summer: R0 = 82.91, r = 0.2741, λ = 1.3155, GRR = 135.71; winter: R0 = 80.62, r = 0.1672, λ = 1.1820, GRR = 131.26), and the mean generation times (summer: T = 14.73 days, winter: T = 22.01 days) of F. intonsa were significantly shorter than those of M. usitatus (summer: T = 16.11 days, winter: T = 26.25 days). These results may contribute to a better understanding of the bioecology of different thrips species, especially the interspecific competition between two economically important cowpea thrips with the same ecological niche in a changing environment.
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Affiliation(s)
- Liang-De Tang
- National Key Laboratory of Green Pesticide, Guizhou University, Guiyang 550025, China
| | - Ling-Hang Guo
- School of Plant Protection, Hainan University, Haikou 570228, China
| | - Zhen Shen
- National Key Laboratory of Green Pesticide, Guizhou University, Guiyang 550025, China
| | - Yong-Ming Chen
- National Key Laboratory of Green Pesticide, Guizhou University, Guiyang 550025, China
| | - Lian-Sheng Zang
- National Key Laboratory of Green Pesticide, Guizhou University, Guiyang 550025, China
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141
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Mackei M, Sebők C, Vöröházi J, Tráj P, Mackei F, Oláh B, Fébel H, Neogrády Z, Mátis G. Detrimental consequences of tebuconazole on redox homeostasis and fatty acid profile of honeybee brain. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2023; 159:103990. [PMID: 37488035 DOI: 10.1016/j.ibmb.2023.103990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/17/2023] [Accepted: 07/17/2023] [Indexed: 07/26/2023]
Abstract
Excessive use of azole fungicides in agriculture poses a potential threat to honeybees and other pollinator insects; however, the detailed effects of these molecules remain largely unclear. Hence, in the present study it was aimed to investigate the acute sublethal effects of tebuconazole on the redox homeostasis and fatty acid composition in the brain of honeybees. Our findings demonstrate that tebuconazole decreased total antioxidant capacity, the ratio of reduced to oxidized glutathione and disturbed the function of key antioxidant defense enzymes along with the induction of lipid peroxidation indicated by increased malondialdehyde levels, while it also altered the fatty acid profile of the brain. The present study highlights the negative impact of tebuconazole on honeybees and contributes to the understanding of potential consequences related to azole exposure on pollinator insects' health, such as the occurrence of colony collapse disorder.
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Affiliation(s)
- Máté Mackei
- Division of Biochemistry, Department of Physiology and Biochemistry, University of Veterinary Medicine Budapest, István Street 2, H-1078 Budapest, Hungary; National Laboratory of Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, University of Veterinary Medicine Budapest, István Street 2, H-1078, Hungary.
| | - Csilla Sebők
- Division of Biochemistry, Department of Physiology and Biochemistry, University of Veterinary Medicine Budapest, István Street 2, H-1078 Budapest, Hungary
| | - Júlia Vöröházi
- Division of Biochemistry, Department of Physiology and Biochemistry, University of Veterinary Medicine Budapest, István Street 2, H-1078 Budapest, Hungary
| | - Patrik Tráj
- Division of Biochemistry, Department of Physiology and Biochemistry, University of Veterinary Medicine Budapest, István Street 2, H-1078 Budapest, Hungary
| | - Fruzsina Mackei
- Division of Biochemistry, Department of Physiology and Biochemistry, University of Veterinary Medicine Budapest, István Street 2, H-1078 Budapest, Hungary
| | - Barnabás Oláh
- Division of Biochemistry, Department of Physiology and Biochemistry, University of Veterinary Medicine Budapest, István Street 2, H-1078 Budapest, Hungary
| | - Hedvig Fébel
- Nutrition Physiology Research Group, Institute of Physiology and Nutrition, Kaposvár Campus, Hungarian University of Agriculture and Life Sciences, Gesztenyés Street 1, H-2053 Herceghalom, Hungary
| | - Zsuzsanna Neogrády
- Division of Biochemistry, Department of Physiology and Biochemistry, University of Veterinary Medicine Budapest, István Street 2, H-1078 Budapest, Hungary
| | - Gábor Mátis
- Division of Biochemistry, Department of Physiology and Biochemistry, University of Veterinary Medicine Budapest, István Street 2, H-1078 Budapest, Hungary; National Laboratory of Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, University of Veterinary Medicine Budapest, István Street 2, H-1078, Hungary
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142
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Gul H, Ul Haq I, Ullah F, Khan S, Yaseen A, Shah SH, Tariq K, Güncan A, Desneux N, Liu X. Impact of sublethal concentrations of flonicamid on key demographic parameters and feeding behavior of Schizaphis graminum. ECOTOXICOLOGY (LONDON, ENGLAND) 2023; 32:756-767. [PMID: 37462788 DOI: 10.1007/s10646-023-02682-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/26/2023] [Indexed: 07/26/2023]
Abstract
Flonicamid is a novel systemic insecticide that efficiently controls sap-sucking insect pests. However, the impact of sublethal concentrations of flonicamid on key demographic parameters and the feeding behavior of greenbug, Schizaphis graminum has not yet been studied. In this study, we used the age stage, two-sex life table approach, and electrical penetration graphs (EPGs) to investigate the sublethal effects of flonicamid on the biological traits and feeding behavior of S. graminum. Bioassays showed that flonicamid possesses high toxicity to adult S. graminum with LC50 of 5.111 mg L-1 following 48 h exposure. Sublethal concentrations of flonicamid (LC5 and LC10) significantly decreased the longevity and fecundity of directly exposed parental aphids (F0), while the reproductive days were reduced only at LC10. The pre-adult stage and total pre-reproductive period (TPRP) increased in F1 individuals after exposure of F0 aphids to the sublethal concentrations of flonicamid. Furthermore, the adult longevity, fecundity and key demographic parameters (R0, r, and λ) were significantly reduced in progeny generation (F1). EPG recordings showed that the total duration of phloem sap ingestion and concurrent salivation (E2) decreased substantially in F0 and F1 aphids after exposure to LC5 and LC10 of flonicamid. Taken together, our results showed that the sublethal concentrations of flonicamid affect the demographic parameters and feeding behavior that ultimately suppress the population growth of S. graminum. This study provides in-depth information about the overall effects of flonicamid on S. graminum that might help to manage this key pest.
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Affiliation(s)
- Hina Gul
- MARA Key Laboratory of Pest Monitoring and Green Management, Department of Entomology, College of Plant Protection, China Agricultural University, Beijing, 100193, China
- Insect Pest Management Program, Institute of Plant and Environmental Protection, National Agricultural Research Centre, Islamabad, Pakistan
| | - Ihsan Ul Haq
- Insect Pest Management Program, Institute of Plant and Environmental Protection, National Agricultural Research Centre, Islamabad, Pakistan
| | - Farman Ullah
- Department of Plant Biosecurity, College of Plant Protection, China Agricultural University, Beijing, 100193, China
| | - Shanza Khan
- Insect Pest Management Program, Institute of Plant and Environmental Protection, National Agricultural Research Centre, Islamabad, Pakistan
| | - Aqsa Yaseen
- Insect Pest Management Program, Institute of Plant and Environmental Protection, National Agricultural Research Centre, Islamabad, Pakistan
| | - Said Hussain Shah
- Insect Pest Management Program, Institute of Plant and Environmental Protection, National Agricultural Research Centre, Islamabad, Pakistan
| | - Kaleem Tariq
- Department of Entomology, Abdul Wali Khan University Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Ali Güncan
- Department of Plant Protection, Faculty of Agriculture, Ordu University, 52200, Ordu, Turkey.
| | - Nicolas Desneux
- Université Côte d'Azur, INRAE, CNRS, UMR ISA, 06000, Nice, France
| | - Xiaoxia Liu
- MARA Key Laboratory of Pest Monitoring and Green Management, Department of Entomology, College of Plant Protection, China Agricultural University, Beijing, 100193, China.
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143
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Zhang A, Dou N, Qu Z, Guo Y, Zhou W, Wu D, Lin Z, Feng M, Cui H, Han L. Effects of the termination of LC 30 imidacloprid stress on the multigeneration adaptive strategies of Aphis glycines population. Front Physiol 2023; 14:1153249. [PMID: 37584015 PMCID: PMC10424448 DOI: 10.3389/fphys.2023.1153249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 06/26/2023] [Indexed: 08/17/2023] Open
Abstract
Aphis glycines Matsumura (Hemiptera: Aphididae) is a major soybean pest that often poses a serious threat to soybean production. Imidacloprid is one of the commonly used insecticides to control the soybean aphid. To investigate the effect of termination of imidacloprid stress on the adaptive strategies of soybean aphid populations, we studied the growth, development, and related metabolism changes when the stress was terminated after 24 generations of imidacloprid stress on A. glycines. The results show that the A. glycines population accelerated its recovery and expanded its population size across generations. The longevity of the adults of the recovering population in the F12, F18, and F24 generations, respectively, was 1.11, 1.15, and 1.11 times longer than the control, while the fecundity was 10.38%, 11.74%, and 11.61% higher than that of the control. The net reproductive rate (R 0) of the recovering population was always significantly higher than that of the control in the F1 to F24 generations. In addition, metabolisms related to the regulation of cell proliferation and oocyte meiosis were significantly upregulated in the recovering population. Even when the imidacloprid pressure disappeared, intergenerational stimuli still affected the adaptive strategies of soybean aphid populations. This effect was manifested as inhibiting the growth and development of the soybean aphid in the early generations and improving the fecundity of the soybean aphid in the later generations. Adaptive soybean aphid populations would surge in the absence of imidacloprid pressure. This study provides an important reference for exploring the adaptability of the A. glycines population under termination of stress from low lethal concentrations of imidacloprid across generations. It also provides important data for monitoring the population dynamics of A. glycines in the field and analyzing the degree of pharmacodynamic stress.
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Affiliation(s)
- Aonan Zhang
- College of Plant Protection, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Nan Dou
- College of Plant Protection, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Zhongcheng Qu
- Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences, Qiqihar City, Heilongjiang, China
| | - Yongxia Guo
- National Coarse Cereals Engineering Research Center, Key Laboratory of Low-Carbon Green Agriculture in Northeastern China, Ministry of Agriculture and Rural Affairs China and Heilongjiang Provincial Key Laboratory of Crop Pest Interaction Biology and Ecological Control, Daqing, China
| | - WenJing Zhou
- College of Plant Protection, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Dongxue Wu
- College of Plant Protection, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Zhiying Lin
- College of Plant Protection, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Min Feng
- College of Plant Protection, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Hengjia Cui
- College of Plant Protection, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Lanlan Han
- College of Plant Protection, Northeast Agricultural University, Harbin, Heilongjiang, China
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144
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Motta JVDO, Carneiro LS, Martínez LC, Bastos DSS, Resende MTCS, Castro BMC, Neves MM, Zanuncio JC, Serrão JE. Midgut Cell Damage and Oxidative Stress in Partamona helleri (Hymenoptera: Apidae) Workers Caused by the Insecticide Lambda-Cyhalothrin. Antioxidants (Basel) 2023; 12:1510. [PMID: 37627505 PMCID: PMC10451733 DOI: 10.3390/antiox12081510] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 07/19/2023] [Accepted: 07/26/2023] [Indexed: 08/27/2023] Open
Abstract
The stingless bee Partamona helleri plays a role in pollinating both native and cultivated plants in the Neotropics. However, its populations can be reduced by the pyrethroid insecticide lambda-cyhalothrin. This compound may cross the intestinal barrier and circulate through the hemolymph, affecting various non-target bee organs. The aim of the present study was to assess the extent of cellular damage in the midgut and the resulting oxidative stress caused by lambda-cyhalothrin in P. helleri workers. Bees were orally exposed to lambda-cyhalothrin. The lethal concentration at which 50% of the bees died (LC50) was 0.043 mg a.i. L-1. The P. helleri workers were fed this concentration of lambda-cyhalothrin and their midguts were evaluated. The results revealed signs of damage in the midgut epithelium, including pyknotic nuclei, cytoplasm vacuolization, changes in the striated border, and the release of cell fragments, indicating that the midgut was compromised. Furthermore, the ingestion of lambda-cyhalothrin led to an increase in the activity of the detoxification enzyme superoxide dismutase and the levels of the NO2/NO3 markers, indicating oxidative stress. Conversely, the activities of the catalase and glutathione S-transferase enzymes decreased, supporting the occurrence of oxidative stress. In conclusion, the ingestion of lambda-cyhalothrin by P. helleri workers resulted in damage to their midguts and induced oxidative stress.
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Affiliation(s)
- João Victor de Oliveira Motta
- Department of General Biology, Institute of Biotechnology Applied to Agriculture, Federal University of Viçosa, Viçosa 36570-900, Brazil; (J.V.d.O.M.); (L.S.C.); (D.S.S.B.); (M.T.C.S.R.); (M.M.N.)
| | - Lenise Silva Carneiro
- Department of General Biology, Institute of Biotechnology Applied to Agriculture, Federal University of Viçosa, Viçosa 36570-900, Brazil; (J.V.d.O.M.); (L.S.C.); (D.S.S.B.); (M.T.C.S.R.); (M.M.N.)
| | | | - Daniel Silva Sena Bastos
- Department of General Biology, Institute of Biotechnology Applied to Agriculture, Federal University of Viçosa, Viçosa 36570-900, Brazil; (J.V.d.O.M.); (L.S.C.); (D.S.S.B.); (M.T.C.S.R.); (M.M.N.)
| | - Matheus Tudor Candido Santos Resende
- Department of General Biology, Institute of Biotechnology Applied to Agriculture, Federal University of Viçosa, Viçosa 36570-900, Brazil; (J.V.d.O.M.); (L.S.C.); (D.S.S.B.); (M.T.C.S.R.); (M.M.N.)
| | - Bárbara Monteiro Castro Castro
- Department of Entomology, Institute of Biotechnology Applied to Agriculture, Federal University of Viçosa, Viçosa 36570-900, Brazil; (B.M.C.C.); (J.C.Z.)
| | - Mariana Machado Neves
- Department of General Biology, Institute of Biotechnology Applied to Agriculture, Federal University of Viçosa, Viçosa 36570-900, Brazil; (J.V.d.O.M.); (L.S.C.); (D.S.S.B.); (M.T.C.S.R.); (M.M.N.)
| | - José Cola Zanuncio
- Department of Entomology, Institute of Biotechnology Applied to Agriculture, Federal University of Viçosa, Viçosa 36570-900, Brazil; (B.M.C.C.); (J.C.Z.)
| | - José Eduardo Serrão
- Department of General Biology, Institute of Biotechnology Applied to Agriculture, Federal University of Viçosa, Viçosa 36570-900, Brazil; (J.V.d.O.M.); (L.S.C.); (D.S.S.B.); (M.T.C.S.R.); (M.M.N.)
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145
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Murayama GP, Barbosa B, Willemart RH. Experimental approach to the dislodging effect and the mortality of a pesticide in the yellow scorpion Tityus serrulatus. PLoS One 2023; 18:e0289104. [PMID: 37498915 PMCID: PMC10374035 DOI: 10.1371/journal.pone.0289104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 07/11/2023] [Indexed: 07/29/2023] Open
Abstract
Accidents with scorpions are a problem in several regions of the world. In Brazil, the number of accidents is sometimes higher than 160k/year, and the responsible for most accidents and deaths is the yellow scorpion Tityus serrulatus. Unfortunately, there are few publications testing the effectiveness of most of the products for chemical control of scorpions. Using the pesticide Bifentol, we tested: I-the effect of the pesticide on the mortality of T. serrulatus, II-whether the scorpion avoids areas with pesticide and, III-whether it leaves the shelter if pesticide is applied. In the first experiment, we applied pesticide or water on the dorsal region of the scorpion or substrate according to treatment. For five days we noted whether the scorpion slide (dead) or clung to the substrate (alive) after turning the arena vertically to left and right. After five days, no pesticide-treated scorpions were alive while all water-treated scorpions were. In the second experiment, we placed two shelters, applied pesticide and/or water inside the shelter. We then released a scorpion on the opposite side. We scored latency to enter one of the shelters and the choice made by the scorpions. We did not find differences in latency or in the choice made. In the third experiment, we applied the pesticide or water to the shelter where the scorpion was being maintained, and, on the following day, we recorded whether the scorpion had left the shelter. None of the scorpions left the shelters and only one died. Thus, we obtained evidence that a pesticide can kill scorpions, but we did not find a dislodging effect.
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Affiliation(s)
- Gabriel Pimenta Murayama
- Laboratório de Ecologia Sensorial e Comportamento de Artrópodes (LESCA), Escola e Artes Ciências e Humanidades, Universidade de São Paulo, São Paulo, Brazil
- Programa de Pós-Graduação em Zoologia, Instituto de Biociências, Universidade de São Saulo, São Paulo, Brazil
| | - Bruna Barbosa
- Laboratório de Ecologia Sensorial e Comportamento de Artrópodes (LESCA), Escola e Artes Ciências e Humanidades, Universidade de São Paulo, São Paulo, Brazil
| | - Rodrigo Hirata Willemart
- Laboratório de Ecologia Sensorial e Comportamento de Artrópodes (LESCA), Escola e Artes Ciências e Humanidades, Universidade de São Paulo, São Paulo, Brazil
- Programa de Pós-Graduação em Zoologia, Instituto de Biociências, Universidade de São Saulo, São Paulo, Brazil
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146
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Dingha BN, Jackai LE. Chemical Composition of Four Industrial Hemp ( Cannabis sativa L.) Pollen and Bee Preference. INSECTS 2023; 14:668. [PMID: 37623378 PMCID: PMC10455179 DOI: 10.3390/insects14080668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/11/2023] [Accepted: 07/21/2023] [Indexed: 08/26/2023]
Abstract
Apart from its economic value, industrial hemp (Cannabis sativa L.) is a prolific pollen producer, serving as a food source for bees. However, little is known regarding the extent to which varietal differences in hemp pollen chemistry influences bee preference. Here, we report the chemical profile of pollen from four hemp varieties (Canda, CFX-2, Henola, and Joey) and bee abundance and diversity, using direct visual counts and pan traps. The number and type of bees on each variety was recorded and the chemical composition (proximate analysis and mineral, amino, and fatty acid profiles) of pollen from each hemp variety was determined. During the entire sampling period, three bee types (bumble bees, honey bees, and sweat bees) were recorded, with a combined total of 1826. Among these, sweat bees and bumble bees were the most prevalent and were highest on the Joey variety. The four varieties expressed protein content ranging from 6.05% to 6.89% and the highest in Henola. Seventeen amino acids were expressed in all varieties, with leucine recording the highest content ranging from 4.00 mg/g in Canda to 4.54 mg/g in Henola. In general, Henola expressed high protein, amino acid, and saturated and monosaturated fatty acid contents and recorded significantly fewer bees compared with Joey, which had a low content of these components and a high content of polyunsaturated fatty acids. Our findings suggest that, while industrial hemp offers abundant and accessible pollen that would promote bee health and sustainability of their ecosystem services, the nutritional quality may not be adequate for bee growth and development as an exclusive pollen source.
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Affiliation(s)
- Beatrice N. Dingha
- Department of Natural Resources and Environmental Design, North Carolina A&T State University, Greensboro, NC 27411, USA;
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147
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Wang H, Xin T, Wang H, Wen K, Liu Y, Wang J, Zou Z, Zhong L, Xia B. Stress response and tolerance mechanisms of spirobudiclofen exposure based on multiomics in Panonychus citri (Acari: Tetranychidae). iScience 2023; 26:107111. [PMID: 37416453 PMCID: PMC10320506 DOI: 10.1016/j.isci.2023.107111] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/07/2023] [Accepted: 06/08/2023] [Indexed: 07/08/2023] Open
Abstract
The toxicity of insecticides used in the field decreases gradually to sublethal concentrations over time. Therefore, it is necessary to study sublethal effects of pesticides for controlling population explosion. Panonychus citri is a global pest which control is based on insecticides. This study explores the stress responses of spirobudiclofen on the P. citri. Spirobudiclofen significantly inhibited survival and reproduction of P. citri, and the effects aggravated as concentration increased. The transcriptomes and metabolomes of spirobudiclofen-treated and control were compared to characterize spirobudiclofen molecular mechanism. Transcriptomics indicated stress induced by spirobudiclofen stimulated immune defense, antioxidative system, cuticle formation, and lipid metabolism, as deduced from RNA-seq analysis. Meanwhile, our study found that tolerance metabolism in P. citri was regulated by promoting the metabolism of glycerophospholipids, glycine, serine, and threonine. The results of this study can provide a basis for exploring the adaptation strategies of P. citri to spirobudiclofen stress.
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Affiliation(s)
- Hongyan Wang
- School of Life Sciences, Nanchang University, Nanchang 330031, P.R.China
| | - Tianrong Xin
- School of Life Sciences, Nanchang University, Nanchang 330031, P.R.China
| | - Haifeng Wang
- School of Life Sciences, Nanchang University, Nanchang 330031, P.R.China
| | - Kexin Wen
- School of Life Sciences, Nanchang University, Nanchang 330031, P.R.China
| | - Yimeng Liu
- School of Life Sciences, Nanchang University, Nanchang 330031, P.R.China
| | - Jing Wang
- School of Life Sciences, Nanchang University, Nanchang 330031, P.R.China
| | - Zhiwen Zou
- School of Life Sciences, Nanchang University, Nanchang 330031, P.R.China
| | - Ling Zhong
- Nanchang Plant Protection and Inspection Bureau of Jiangxi Province, Nanchang 330096, P.R.China
| | - Bin Xia
- School of Life Sciences, Nanchang University, Nanchang 330031, P.R.China
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148
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Skouras PJ, Karanastasi E, Lycoskoufis I, Demopoulos V, Darras AI, Tsafouros A, Tsalgatidou PC, Margaritopoulos JT, Stathas GJ. Toxicity and Lethal Effect of Greenhouse Insecticides on Coccinella septempunctata (Coleoptera: Coccinellidae) as Biological Control Agent of Myzus persicae (Hemiptera: Aphididae). TOXICS 2023; 11:584. [PMID: 37505550 PMCID: PMC10385029 DOI: 10.3390/toxics11070584] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/21/2023] [Accepted: 07/03/2023] [Indexed: 07/29/2023]
Abstract
Deltamethrin and imidacloprid are commonly used insecticides for controlling sub-sucking insects in greenhouses. However, their application may cause sublethal effects on the aphid coccinellid predator Coccinella septempunctata (Coleoptera: Coccinellidae). Here, we study (i) the toxicity and the effect of two sublethal doses (LD10 and LD30) of deltamethrin and imidacloprid on C. septempunctata in a laboratory microcosm and (ii) the residual toxicity of the two insecticides in a greenhouse. The results showed that both insecticides reduced fecundity, longevity, the intrinsic rate of increase, the finite rate of increase and the net reproductive rate. However, the developmental time of the fourth instar larvae was prolonged by both insecticides at LD10 and LD30. Deltamethrin residues were toxic 21 DAT (days after treatment) to C. septempunctata fourth instar larvae. In contrast, imidacloprid began in the slightly harmful category (75%) 1 DAT and declined to the harmless category (18.33%) 21 DAT. These results indicate that deltamethrin and imidacloprid have potential risks to C. septempunctata. This study provides information to guide the development of integrated pest management (IPM) strategies in greenhouses.
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Affiliation(s)
- Panagiotis J Skouras
- Laboratory of Agricultural Entomology and Zoology, Department of Agriculture, University of the Peloponnese, Kalamata Campus, 24100 Antikalamos, Greece
- Laboratory of Plant Protection, Department of Agriculture, University of the Peloponnese, Kalamata Campus, 24100 Antikalamos, Greece
| | - Eirini Karanastasi
- Plant Protection Laboratory, Department of Agriculture, University of Patras, Nea Ktiria, 30200 Mesolonghi, Greece
| | - Ioannis Lycoskoufis
- Department of Agriculture, University of the Peloponnese, 24100 Kalamata, Greece
| | - Vasilis Demopoulos
- Laboratory of Plant Protection, Department of Agriculture, University of the Peloponnese, Kalamata Campus, 24100 Antikalamos, Greece
| | - Anastasios I Darras
- Department of Agriculture, University of the Peloponnese, 24100 Kalamata, Greece
| | - Athanasios Tsafouros
- Department of Agriculture, University of the Peloponnese, 24100 Kalamata, Greece
| | - Polina C Tsalgatidou
- Department of Agriculture, University of the Peloponnese, 24100 Kalamata, Greece
| | - John T Margaritopoulos
- Department of Plant Protection, Institute of Industrial and Fodder Crops, Hellenic Agricultural Organization "DEMETER", 38334 Volos, Greece
| | - George J Stathas
- Laboratory of Agricultural Entomology and Zoology, Department of Agriculture, University of the Peloponnese, Kalamata Campus, 24100 Antikalamos, Greece
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149
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Zhang L, Lv H, Li X, Wan H, He S, Li J, Ma K. Sublethal effects of acetamiprid and afidopyropen on Harmonia axyridis: insights from transcriptomics analysis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 262:115203. [PMID: 37406606 DOI: 10.1016/j.ecoenv.2023.115203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 06/09/2023] [Accepted: 06/27/2023] [Indexed: 07/07/2023]
Abstract
Evaluating the sublethal effects of insecticide is crucial for protecting and utilizing natural enemies. In this study, we determined the sublethal effects of acetamiprid and afidopyropen on Harmonia axyridis (Pallas) and explored the potential molecular mechanisms underlying these effects through transcriptomics analysis. The results showed that sublethal concentrations of acetamiprid significantly reduced the adult fecundity and longevity of F0H. axyridis and decreased the survival time and survival rate of the F1 generation. Sublethal concentrations of afidopyropen prolonged the developmental time of 4th instar larvae in the F0 generation. Additionally, acetamiprid and afidopyropen treatments significantly decreased the predation of H. axyridis. Furthermore, transcriptome sequencing analysis revealed that several P450 and UGT genes expressed differently when H. axyridis were exposed to sublethal concentrations of acetamiprid and afidopyropen, suggesting that the differential expression of detoxifying genes might be involved in the response and detoxification metabolism of acetamiprid and afidopyropen in H. axyridis. Our findings demonstrate that sublethal concentrations of acetamiprid adversely influences the development and predation of H. axyridis, while afidopyropen has limited effects on H. axyridis. These results are helpful for protecting and utilizing natural enemies and guiding the scientific use of pesticides in the field.
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Affiliation(s)
- Liang Zhang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Haixiang Lv
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Xuchao Li
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Hu Wan
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Shun He
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Jianhong Li
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Kangsheng Ma
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China.
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150
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Lee YS, Lee HA, Kim GH, Baek S. Effects of host plant on the development and reproduction of Agrotis ipsilon (Lepidoptera: Noctuidae) on horticultural crops. Heliyon 2023; 9:e17836. [PMID: 37456061 PMCID: PMC10345336 DOI: 10.1016/j.heliyon.2023.e17836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 06/26/2023] [Accepted: 06/28/2023] [Indexed: 07/18/2023] Open
Abstract
One of cosmopolitan pest, Agrotis ipsilon (Lepidoptera: Noctuidae), causes serious economic damages in horticultural crops. This pest is difficult to manage and causes irreversible damage because its larvae stay in the ground at day and cut the plant stems at night. Thus, this study compared the host fitness of A. ipsilon among nine major horticultural crops in Korea. Among the nine crops, the population of A. ipsilon failed to complete its development in spinach, cucumber, melon, and kidney bean. The host effects on development and reproduction of A. ipsilon were further investigated in the remained five crops (i.e., napa cabbage, soybean, perilla, corn, and pepper). Host plants significantly (P < 0.05) affected the development-related factors (i.e., developmental time, survivorship, and weight) of A. ipsilon eggs, larvae, and pupae. They also affected the adult reproduction-related factors including preoviposition period, oviposition period and number, and longevity except for the prepupa stage. A positive relationship was found between biological factors (i.e., development- and reproduction-related factors). Among the nine crops in this study, napa cabbage showed the highest suitability for the A. ipsilon populations. These findings in this study would be helpful to understand the ecology and develop the management tactics of A. ipsilon in horticultural crops.
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Affiliation(s)
- Young Su Lee
- Department of Environmental Agriculture Research, Gyeonggi-do Agricultural Research and Extension Services, Hwaseong, 28333, Republic of Korea
| | - Hee-A Lee
- Department of Environmental Agriculture Research, Gyeonggi-do Agricultural Research and Extension Services, Hwaseong, 28333, Republic of Korea
- Department of Plant Medicine, Chungbuk National University, Cheongju, 28644, Republic of Korea
| | - Gil-Hah Kim
- Department of Plant Medicine, Chungbuk National University, Cheongju, 28644, Republic of Korea
| | - Sunghoon Baek
- Department of Agriculture and Fisheries Convergence, Korea National University of Agriculture and Fisheries, Jeonju, 54874, Republic of Korea
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