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Zhang L, Wu HZ, He PY, Cao HQ, Zhang WN, Peng YC, Sheng CW. Sublethal effect and detoxifying metabolism of metaflumizone and indoxacarb on the fall armyworm, Spodoptera frugiperda. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 201:105879. [PMID: 38685245 DOI: 10.1016/j.pestbp.2024.105879] [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: 01/24/2024] [Revised: 03/06/2024] [Accepted: 03/15/2024] [Indexed: 05/02/2024]
Abstract
The fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith) (Lepidoptera, Noctuidae), is a highly polyphagous invasive pest that damages various crops. Pesticide control is the most common and effective strategy to control FAW. In this study, we evaluated the toxicity of metaflumizone and indoxacarb against third-instar FAW larvae using the insecticide-incorporated artificial diet method under laboratory conditions. Both metaflumizone and indoxacarb exhibited substantial toxicity against FAW, with LC50 values of 2.43 and 14.66 mg/L at 72 h, respectively. The sublethal effects of metaflumizone and indoxacarb on parental and F1 generation FAW were investigated by exposing third-instar larvae to LC10 and LC30 concentrations of these insecticides. Sublethal exposure to these two insecticides significantly shortened adult longevity, extended pupal developmental times and led to reduced pupal weight, pupation rates, and adult fecundity in the treated parental generation and F1 generation at LC10 or LC30 concentrations, in comparison to the control group. The larval developmental times were shortened in the parental generation but prolonged in the F1 generation, after being treated with sublethal concentrations of metaflumizone. Furthermore, larvae exposed to LC10 or LC30 concentrations of indoxacarb exhibited elevated activity levels of cytochrome P450 monooxygenase and glutathione S-transferase, which coincides with the observed synergistic effect of piperonyl butoxide and diethyl maleate. In conclusion, the high toxicity and negative impact of metaflumizone and indoxacarb on FAW provided significant implications for the rational utilization of insecticides against this pest.
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Affiliation(s)
- Li Zhang
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, the Key Laboratory of Agri-products Quality and Biosafety (Anhui Agricultural University), Ministry of Education, Hefei 230036, PR China
| | - Hui-Zi Wu
- Guizhou Provincial Tobacco Company Zunyi Branch, Zunyi 563000, PR China
| | - Pei-Yun He
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, the Key Laboratory of Agri-products Quality and Biosafety (Anhui Agricultural University), Ministry of Education, Hefei 230036, PR China
| | - Hai-Qun Cao
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, the Key Laboratory of Agri-products Quality and Biosafety (Anhui Agricultural University), Ministry of Education, Hefei 230036, PR China
| | - Wan-Na Zhang
- Institute of Entomology, Jiangxi Agricultural University, Nanchang 330045, PR China
| | - Ying-Chuan Peng
- Institute of Entomology, Jiangxi Agricultural University, Nanchang 330045, PR China.
| | - Cheng-Wang Sheng
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, the Key Laboratory of Agri-products Quality and Biosafety (Anhui Agricultural University), Ministry of Education, Hefei 230036, PR China.
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Su Y, Wang W, Dai Y, Qi R, Gu H, Guo X, Liu X, Ren Y, Li F, Li B, Sun H. JH degradation pathway participates in hormonal regulation of larval development of Bombyx mori following λ-cyhalothrin exposure. CHEMOSPHERE 2024; 349:140871. [PMID: 38056714 DOI: 10.1016/j.chemosphere.2023.140871] [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: 10/12/2023] [Revised: 11/29/2023] [Accepted: 11/30/2023] [Indexed: 12/08/2023]
Abstract
λ-Cyhalothrin (λ-cyh), a widely utilized pyrethroid insecticide, poses serious threats to non-target organisms due to its persistence nature in the environment. Exposure to low concentrations of λ-cyh has been observed to result in prolonged larval development in Bombyx mori, leading to substantial financial losses in sericulture. The present study was undertaken to elucidate the underlying mechanisms for prolonged development caused by λ-cyh (LC10) exposure. The results showed that the JH Ⅲ titer was significantly increased at 24 h of λ-cyh exposure, and the JH interacting genes Methoprene-tolerant 2, Steroid Receptor Co-activator, Krüppel-homolog 1, and JH binding proteins were also up-regulated. Although the target of rapamycin (Tor) genes were induced by λ-cyh, the biosynthesis of JH in the corpora allata was not promoted. Notably, 13 JH degradation genes were found to be significantly down-regulated in the midgut of B. mori. The mRNA levels and enzyme activity assays indicated that λ-cyh had inhibitory effects on JH esterase, JH epoxide hydrolase, and JH diol kinase (JHDK). Furthermore, the suppression of JHDK (KWMTBOMO01580) was further confirmed by both western blot and immunohistochemistry. This study has offered a comprehensive perspective on the mechanisms underlying the prolonged development caused by insecticides, and our results also hold significant implications for the safe production of sericulture.
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Affiliation(s)
- Yue Su
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China
| | - Wanwan Wang
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China
| | - Yixin Dai
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China
| | - Ruinan Qi
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China
| | - Haoyi Gu
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China
| | - Xiqian Guo
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China
| | - Xinyu Liu
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China
| | - Yuying Ren
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China
| | - Fanchi Li
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China; Sericulture Institute of Soochow University, Suzhou, Jiangsu, 215123, PR China
| | - Bing Li
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China; Sericulture Institute of Soochow University, Suzhou, Jiangsu, 215123, PR China.
| | - Haina Sun
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu, 215123, PR China; Sericulture Institute of Soochow University, Suzhou, Jiangsu, 215123, PR China.
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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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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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Suarez-Lopez YA, Hatem AE, Aldebis HK, Vargas-Osuna E. Effects of Tebufenozide on Eggs, Larvae and Adults of Chrysoperla carnea (Neuroptera: Chrysopidae). INSECTS 2023; 14:521. [PMID: 37367337 DOI: 10.3390/insects14060521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 05/27/2023] [Accepted: 06/02/2023] [Indexed: 06/28/2023]
Abstract
Quantifying compatibility among control agents is essential for development of integrated pest management (IPM). Chrysoperla carnea (Siemens) and insect growth regulator insecticides are widely used in IPM of Lepidoptera. C. carnea is a generalist predator naturally present in the Mediterranean agroecosystems and bred in insectariums for commercial purposes. Here, we evaluated lethal and sublethal effects of tebufenozide on C. carnea under laboratory conditions. The treatment of eggs with tebufenozide 24 or 48 h after they were laid did not affect the hatching rate or survival of the neonate larvae. Toxic effects of tebufenozide on topically treated larvae was low; development times of surviving larvae and pupae decreased significantly compared with controls. In choice bioassays, a high percentage of third-instar larvae chose prey (Spodoptera littoralis) treated with tebufenozide in preference to untreated prey. Moreover, second-instar larvae of C. carnea that had previously consumed tebufenozide-treated prey (0.75 mL/L) had significantly reduced larval development time compared with controls, while longevity of surviving adults, fecundity and egg viability were unaffected. Ingestion of tebufenozide by adults of C. carnea at the recommended field dose had no significant effect on female fecundity, egg viability or adult longevity. Tebufenozide exhibited low toxicity towards the developmental stages of C. carnea and is therefore a candidate for inclusion in IPM strategies.
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Affiliation(s)
- Yurany Andrea Suarez-Lopez
- Department of Agronomy, ETSIAM, Campus Rabanales, University of Cordoba, Building C4 "Celestino Mutis", 14071 Cordoba, Spain
| | - Adel E Hatem
- Plant Protection Research Institute (PPRI), 7 Nadi El-Said St., Dokki, Giza 12311, Egypt
| | - Hani K Aldebis
- Department of Agronomy, ETSIAM, Campus Rabanales, University of Cordoba, Building C4 "Celestino Mutis", 14071 Cordoba, Spain
| | - Enrique Vargas-Osuna
- Department of Agronomy, ETSIAM, Campus Rabanales, University of Cordoba, Building C4 "Celestino Mutis", 14071 Cordoba, Spain
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Yao Q, Quan L, Wang S, Xing D, Chen B, Lu K. Predatory stink bug, Eocanthecona furcellata (Wolff) responses to oral exposure route of λ-cyhalothrin via sex-specific modulation manner. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 192:105381. [PMID: 37105612 DOI: 10.1016/j.pestbp.2023.105381] [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: 01/12/2023] [Revised: 02/23/2023] [Accepted: 03/03/2023] [Indexed: 06/19/2023]
Abstract
The toxic effects of insecticides on predatory arthropods have closely related to their exposure routes. However, little is known about the effects of insecticide on reproductive parameters when the route of exposure occurs at a trophic level via prey intake. We therefore conducted current studies assessing whether Eocanthecona furcellata adults would be affected by feeding with λ-cyhalothrin-contaminated prey. Reproductive parameters, i.e. prolonged premating and preoviposition durations, reduced number of egg batches and egg amount, disturbed ovarian development, and suppressed expression of reproductive related genes were observed in E. furcellata females by feeding with treated prey. Moreover, reduced survival rate and altered carbohydrate metabolism parameters were detected in male bugs. Biochemical parameters, including MDA content, the activities of three antioxidant enzymes and three detoxification enzymes exhibited sex-specific responses after oral-exposure to λ-cyhalothrin in E. furcellata. The results indicate that the insecticide affects the fitness and leads to impairing reproductive potential via sex-specific modulation manner in predator insects. Taken together, our results provide a comprehensive assessment about detrimental impacts of λ-cyhalothrin-exposure on predators via prey intake, as well as a solid basis for further research to protect the predators from hazardous impacts of insecticides.
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Affiliation(s)
- Qiong Yao
- Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou 510640, China
| | - Linfa Quan
- Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou 510640, China
| | - Siwei Wang
- Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou 510640, China
| | - Dongxu Xing
- Sericulture and Agri-Food Research Institute, Guangdong, Academy of Agricultural Sciences, Guangzhou 510610, China
| | - Bingxu Chen
- Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou 510640, China
| | - Kai Lu
- Anhui Province Key Laboratory of Crop Integrated Pest Management, Anhui Province Engineering Laboratory for Green Pesticide Development and Application, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China.
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Elias Oliveira Padovez F, Hideo Kanno R, Omoto C, Sartori Guidolin A. Fitness costs associated with chlorantraniliprole resistance in Spodoptera frugiperda (Lepidoptera: Noctuidae) strains with different genetic backgrounds. PEST MANAGEMENT SCIENCE 2022; 78:1279-1286. [PMID: 34854222 DOI: 10.1002/ps.6746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 10/25/2021] [Accepted: 12/02/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Spodoptera frugiperda (J.E. Smith) is a difficult pest to manage mainly because of its resistance to insecticides and Bt proteins. We evaluated fitness costs of S. frugiperda resistant strains to diamide insecticides with different genetic backgrounds aiming to highlight the importance of using isogenic strains. We established a near-isogenic strain of S. frugiperda resistant to diamides (Iso-RR), using a chlorantraniliprole resistant strain (RR) selected from a field-collected population and a susceptible reference strain (SS). Fitness costs were assayed using strains with close-related genetic backgrounds (Iso-RR and SS) and strains with distant-related genetic backgrounds (RR and SS). RESULTS No fitness cost associated with chlorantraniliprole resistance in S. frugiperda was observed using the Iso-RR strain, based on life history traits. The only parameter that differs between Iso-RR and SS strains was the mean length of a generation (T), whereas the Iso-RR strain presented T = 35.8 and SS strain showed T = 34.6. On the other hand, a significant fitness cost was detected using the RR strain. All population growth parameters differ between RR and SS strains. Based on the intrinsic rate of population increase (rm ) parameter, the relative fitness estimated was 1.02 for the Iso-RR strain and 0.64 for the RR strain. CONCLUSION The genetic background of the resistant strains alters fitness cost outcomes. The RR strain showed fitness costs associated with resistance, but the Iso-RR did not. Our work supports the decision-making process of resistance management programs and adds to the growing body of research that enlightens the importance of strain genetics in fitness cost experiments.
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Affiliation(s)
- Fernando Elias Oliveira Padovez
- Department of Entomology and Acarology, University of Sao Paulo, Luiz de Queiroz College of Agriculture (USP/ESALQ), Piracicaba, Brazil
| | - Rubens Hideo Kanno
- Department of Entomology and Acarology, University of Sao Paulo, Luiz de Queiroz College of Agriculture (USP/ESALQ), Piracicaba, Brazil
| | - Celso Omoto
- Department of Entomology and Acarology, University of Sao Paulo, Luiz de Queiroz College of Agriculture (USP/ESALQ), Piracicaba, Brazil
| | - Aline Sartori Guidolin
- Department of Entomology and Acarology, University of Sao Paulo, Luiz de Queiroz College of Agriculture (USP/ESALQ), Piracicaba, Brazil
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Gregarines modulate insect responses to sublethal insecticide residues. Oecologia 2021; 198:255-265. [PMID: 34851452 PMCID: PMC8803800 DOI: 10.1007/s00442-021-05086-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 11/18/2021] [Indexed: 10/25/2022]
Abstract
Throughout their lifetime, insects face multiple environmental challenges that influence their performance. Gregarines are prevalent endoparasites in most invertebrates that affect the fitness of their hosts, but are often overlooked in ecological studies. Next to such biotic factors, a current common challenge is anthropogenic pollution with pesticides, which causes a major threat to non-target organisms that are readily exposed to lethal or sublethal concentrations. In a laboratory study, we investigated whether the presence of gregarines modulates the food consumption and life history traits of a (non-target) leaf beetle species, Phaedon cochleariae, in response to sublethal insecticide exposure. We show that the larval food consumption of the herbivore was neither affected by gregarine infection nor sublethal insecticide exposure. Nevertheless, infection with gregarines led to a delayed development, while insecticide exposure resulted in a lower body mass of adult males and a reduced reproduction of females. Individuals exposed to both challenges suffered most, as they had the lowest survival probability. This indicates detrimental effects on the population dynamics of non-target insects infected with naturally occurring gregarines that face additional stress from agrochemical pollution. Moreover, we found that the infection load with gregarines was higher in individuals exposed to sublethal insecticide concentrations compared to unexposed individuals. To counteract the global decline of insects, the potential of natural parasite infections in modulating insect responses to anthropogenic and non-anthropogenic environmental factors should be considered in ecological risk assessment.
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9
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Past insecticide exposure reduces bee reproduction and population growth rate. Proc Natl Acad Sci U S A 2021; 118:2109909118. [PMID: 34810261 DOI: 10.1073/pnas.2109909118] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2021] [Indexed: 11/18/2022] Open
Abstract
Pesticides are linked to global insect declines, with impacts on biodiversity and essential ecosystem services. In addition to well-documented direct impacts of pesticides at the current stage or time, potential delayed "carryover" effects from past exposure at a different life stage may augment impacts on individuals and populations. We investigated the effects of current exposure and the carryover effects of past insecticide exposure on the individual vital rates and population growth of the solitary bee, Osmia lignaria Bees in flight cages freely foraged on wildflowers, some treated with the common insecticide, imidacloprid, in a fully crossed design over 2 y, with insecticide exposure or no exposure in each year. Insecticide exposure directly to foraging adults and via carryover effects from past exposure reduced reproduction. Repeated exposure across 2 y additively impaired individual performance, leading to a nearly fourfold reduction in bee population growth. Exposure to even a single insecticide application can have persistent effects on vital rates and can reduce population growth for multiple generations. Carryover effects had profound implications for population persistence and must be considered in risk assessment, conservation, and management decisions for pollinators to mitigate the effects of insecticide exposure.
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10
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Hamida ZC, Farine JP, Ferveur JF, Soltani N. Pre-imaginal exposure to Oberon® disrupts fatty acid composition, cuticular hydrocarbon profile and sexual behavior in Drosophila melanogaster adults. Comp Biochem Physiol C Toxicol Pharmacol 2021; 243:108981. [PMID: 33493665 DOI: 10.1016/j.cbpc.2021.108981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 01/09/2021] [Accepted: 01/14/2021] [Indexed: 10/22/2022]
Abstract
Oberon® is a commercial formulation of spiromesifen, a pesticide inhibitor of lipid biosynthesis via acetyl CoA carboxylase, widely used in agricultural crop protection. However, its mode of action requires further analysis. We currently examined the effect of this product on Drosophila melanogaster as a non-target and model organism. Different concentrations of spiromesifen were administered by ingestion (and contact) during pre-imaginal development, and we evaluated its delayed action on adults. Our results suggest that spiromesifen induced insecticidal activity on D. melanogaster. Moreover, spiromesifen treatment significantly increased the duration of larval and pupal development at all tested concentrations while it shortened longevity in exposed males as compared to control males. Also, pre-imaginal exposure to spiromesifen quantitatively affected fatty acids supporting its primary mode of action on lipid synthesis. In addition, this product was found to modify cuticular hydrocarbon profiles in exposed female and male flies as well as their sexual behavior and reproductive capacity.
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Affiliation(s)
- Z C Hamida
- Laboratory of Applied Animal Biology, Department of Biology, Faculty of Sciences, Badji Mokhtar University, Annaba, Algeria; Centre des Sciences du Goût et de l'Alimentation, Agrosup-UMR 6265 CNRS, UMR 1324 INRA, Université de Bourgogne, Dijon, France
| | - J P Farine
- Centre des Sciences du Goût et de l'Alimentation, Agrosup-UMR 6265 CNRS, UMR 1324 INRA, Université de Bourgogne, Dijon, France
| | - J F Ferveur
- Centre des Sciences du Goût et de l'Alimentation, Agrosup-UMR 6265 CNRS, UMR 1324 INRA, Université de Bourgogne, Dijon, France
| | - N Soltani
- Laboratory of Applied Animal Biology, Department of Biology, Faculty of Sciences, Badji Mokhtar University, Annaba, Algeria.
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Wolz M, Schrader A, Müller C. Direct and delayed effects of exposure to a sublethal concentration of the insecticide λ-cyhalothrin on food consumption and reproduction of a leaf beetle. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 760:143381. [PMID: 33172643 DOI: 10.1016/j.scitotenv.2020.143381] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/23/2020] [Accepted: 10/23/2020] [Indexed: 06/11/2023]
Abstract
Anthropogenic pollution such as the application of pesticides poses a major threat to many (non-target) organisms. However, little is known about the persistence of harmful effects or potential recovery in response to a period of exposure to a sublethal insecticide dose. Adults of the mustard leaf beetle, Phaedon cochleariae (Coleoptera: Chrysomelidae), were either exposed to a sublethal concentration of the pyrethroid λ-cyhalothrin for two weeks or kept unexposed as control. During, immediately after and at a delayed time after the exposure, consumption and reproduction, i.e., number of eggs laid and hatching success, were assessed. In addition, long-term effects on unexposed offspring were investigated. Exposure to λ-cyhalothrin reduced the consumption during the insecticide exposure, but led to compensatory feeding in females at a delayed time after exposure. The reproductive output of females was impaired during and directly after λ-cyhalothrin exposure. At the delayed time point there was no clear evidence for a recovery, as the reproduction of heavier females was still negatively affected, while lighter females showed an enhanced reproduction. Persistent negative effects on unexposed offspring had been found when collected from parents directly after a λ-cyhalothrin exposure period. In contrast, in the present experiment neither negative effects on life-history traits nor on consumption were observed in unexposed offspring derived from parents at the delayed time after λ-cyhalothrin exposure. Moreover, eggs of offspring from insecticide-exposed parents showed a higher hatching success than those of offspring of unexposed parents, which may indicate transgenerational hormesis. Our results highlight that λ-cyhalothrin exposure has persistent negative effects on fitness parameters of the exposed generation. However, offspring may not be harmed if their parents had sufficient time to recover after such an insecticide exposure. Taken together, our study emphasises that the time-course of exposure to this anthropogenic pollution is crucial when determining the consequences on life-history.
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Affiliation(s)
- Marina Wolz
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 24, 33615 Bielefeld, Germany
| | - Alia Schrader
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 24, 33615 Bielefeld, Germany
| | - Caroline Müller
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 24, 33615 Bielefeld, Germany.
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12
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Iftikhar A, Hafeez F, Hafeez M, Farooq M, Asif Aziz M, Sohaib M, Naeem A, Lu Y. Sublethal effects of a juvenile hormone analog, Pyriproxyfen on demographic parameters of non-target predator, Hippodamia convergens Guerin-Meneville (Coleoptera: Coccinellidae). ECOTOXICOLOGY (LONDON, ENGLAND) 2020; 29:1017-1028. [PMID: 31955283 DOI: 10.1007/s10646-020-02159-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/02/2020] [Indexed: 06/10/2023]
Abstract
Insect predators, in general, play an important role in regulating pest populations in agricultural systems, but may be negatively affected by pesticides used in pest management. Convergent lady beetle, Hippodamia convergens Guerin-Meneville (Coleoptera: Coccinellidae) is known as an important biological control agent of soft-bodied insect pests. The development of Integrated Pest Management (IPM) program against insect pests requires an assessment of the side effect of insecticides on biological control agents. In the present work, we assessed the sublethal effects of an insect growth regulator, Pyriproxyfen (juvenile hormone mimic) on a common aphidophagous beetle, H. convergens by computing its demographic parameters through age-stage, two-sex life table theory. Present results showed that sublethal (LC10 and LC30) concentrations of tested insecticide prolonged the pre-adult developmental duration while adult longevity, fecundity and fertility were reduced following treatment compared with control. However, total pre-ovipositional period (TPOP) was declined with the increasing trend of insecticide concentration. In additions, population growth parameters such as intrinsic rate of increase r, finite rate of increase λ and net reproductive rate R0 were dramatically reduced in H. convergens population when they treated with sublethal concentrations pyriproxyfen. Therefore, the results obtained through this study reflected that pyriproxyfen impairs the population growth parameters and could reduce the biological services provided by H. convergens. Thus, more attention should be paid to the use of this insecticide in IPM program.
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Affiliation(s)
- Ayesha Iftikhar
- Entomological Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan.
| | - Faisal Hafeez
- Entomological Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan
| | - Muhammad Hafeez
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Zhejiang Academy of Agricultural Sciences, Institute of Plant Protection and Microbiology, Hangzhou, 310021, PR China.
| | - Muhammad Farooq
- School of Earth, Environment and Biological Sciences, Science and Engineering Faculty, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Muhammad Asif Aziz
- Department of Entomology, Pir Mehr Ali Shah, Arid Agriculture University Rawalpindi, Rawalpindi, Pakistan
| | - Muhammad Sohaib
- Institute of Agricultural Sciences, University of the Punjab, Lahore, Pakistan
| | - Afifa Naeem
- Entomological Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan
| | - Yaobin Lu
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Zhejiang Academy of Agricultural Sciences, Institute of Plant Protection and Microbiology, Hangzhou, 310021, PR China
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13
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Andreazza F, Haddi K, Nörnberg SD, Guedes RNC, Nava DE, Oliveira EE. Sex-dependent locomotion and physiological responses shape the insecticidal susceptibility of parasitoid wasps. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 264:114605. [PMID: 32380390 DOI: 10.1016/j.envpol.2020.114605] [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: 02/20/2020] [Revised: 04/14/2020] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
The adaptive fitness of insect species can be shaped by how males and females respond, both physiologically and behaviorally, to environmental challenges, such as pesticide exposure. In parasitoid wasps, most toxicological investigations focus only on female responses (e.g., survival and especially parasitism abilities), leaving the male contributions to adaptive fitness (survival, locomotion, mate search) poorly investigated. Here, we evaluated the toxicity of the spinosyn insecticide spinosad against the South American fruit fly, Anastrepha fraterculus, and we used the parasitoid wasp Diachasmimorpha longicaudata (Ashmead) to evaluate whether sex-linked locomotory and physiological responses would influence the susceptibility of these organisms to spinosad. Our results revealed that D. longicaudata males were significantly more susceptible (median lethal time (LT50) = 24 h) to spinosad than D. longicaudata females (LT50 = 120 h), which may reflect the differences in their locomotory and physiological (e.g., respiratory) responses to mitigate insecticide exposure. Compared to D. longicaudata females, male wasps were lighter (P < 0.001), walked for longer distances (P < 0.001) and periods (P < 0.001), and exhibited higher sensilla densities in their tarsi (P = 0.008), which may facilitate their intoxication with the insecticide. These findings indicate that male parasitoids should not be exempt from insecticide selectivity tests, as these organisms can be significantly more affected by such environmental challenges than their female conspecifics.
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Affiliation(s)
- Felipe Andreazza
- Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, MG, 36570-900, Brazil; Departament of Entomology, Michigan State University, East Lansing, MI, 48823, USA
| | - Khalid Haddi
- Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, MG, 36570-900, Brazil; Departamento de Entomologia, Universidade Federal de Lavras, Lavras, MG, 37200-000, Brazil
| | - Sandro D Nörnberg
- Embrapa Clima Temperado, Laboratory of Entomology, Pelotas, RS, 96010-971, Brazil
| | - Raul Narciso C Guedes
- Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, MG, 36570-900, Brazil
| | - Dori E Nava
- Embrapa Clima Temperado, Laboratory of Entomology, Pelotas, RS, 96010-971, Brazil
| | - Eugênio E Oliveira
- Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, MG, 36570-900, Brazil; Departament of Entomology, Michigan State University, East Lansing, MI, 48823, USA.
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14
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Young HK, Denecke SM, Robin C, Fournier-Level A. Sublethal larval exposure to imidacloprid impacts adult behaviour in Drosophila melanogaster. J Evol Biol 2019; 33:151-164. [PMID: 31637792 DOI: 10.1111/jeb.13555] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 10/07/2019] [Accepted: 10/11/2019] [Indexed: 12/27/2022]
Abstract
Pesticides are now chronically found in numerous ecosystems incurring widespread toxic effects on multiple organisms. For insects, the larvae are very exposed to pesticide pollution and the acute effect of insecticides on larvae has been characterized in a range of species. However, the carry-on effects in adults of sublethal exposure occurring in larvae are not well characterized. Here, we use a collection of strains of Drosophila melanogaster differing in their larval resistance to a commonly used insecticide, imidacloprid, and we test the effect of larval exposure on behavioural traits at the adult stage. Focusing on locomotor activity and on courtship and mating behaviour, we observed a significant carry-on effect of imidacloprid exposure. The heritability of activity traits measured in flies exposed to imidacloprid was higher than measured in controls and in these, courtship traits were genetically less correlated from mating success. Altogether, we did not observe a significant effect of the larval insecticide resistance status on adult behavioural traits, suggesting that selection for resistance in larvae does not involve repeatable behavioural changes in adults. This lack of correlation between larval resistance and adult behaviour also suggests that resistance at the larval stage does not necessarily result in increased behavioural resilience at a later life stage. These findings imply that selection for resistance in larvae as well as for behavioural resilience to sublethal exposure in adult will combine and impose a greater evolutionary constraint. Our conclusions further substantiate the need to encompass multiple trait measures and life stages in toxicological assays to properly assess the environmental impact of pesticides.
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Affiliation(s)
- Helen K Young
- School of BioSciences, The University of Melbourne, Parkville, Vic., Australia
| | - Shane M Denecke
- Institute of Molecular Biology and Biotechnology FORTH, Heraklion, Greece
| | - Charles Robin
- School of BioSciences, The University of Melbourne, Parkville, Vic., Australia
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Skouras PJ, Brokaki M, Stathas GJ, Demopoulos V, Louloudakis G, Margaritopoulos JT. Lethal and sub-lethal effects of imidacloprid on the aphidophagous coccinellid hippodamia variegata. CHEMOSPHERE 2019; 229:392-400. [PMID: 31082706 DOI: 10.1016/j.chemosphere.2019.05.037] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 05/03/2019] [Accepted: 05/04/2019] [Indexed: 06/09/2023]
Abstract
Hippodamia variegata is one of the most abundant ladybird species in Greece, preying on several aphid species and other arthropods, of which many are pests of cultivated plants. Imidacloprid, a neonicotinoid insecticide, is commonly used for controlling sucking insects; at the same time, however, it can cause various sub-lethal effects on non-target organisms. The development of IPM programs against pests requires an evaluation of the side effects of insecticides on natural enemies. We evaluated the sub-lethal effects of imidacloprid on H. variegata. Our results demonstrate that imidacloprid at a LC10 (3.92 mg (a.i.) L-1 and LC30 (8.69 mg (a.i.) L-1) decreased adult longevity and survival rate. In addition, demographic parameters, such as the intrinsic rate of increase (r), finite rate of increase (λ) and net reproductive rate (R0), were reduced when exposed to sub-lethal concentrations of imidacloprid. These results demonstrate a negative influence of imidacloprid at sub-lethal concentrations on H. variegata which could reduce biological control services provided by this predator.
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Affiliation(s)
- Panagiotis J Skouras
- Laboratory of Agricultural Entomology and Zoology, Department of Agricultural Technology, Technological Educational Institute of Peloponnese, 24 100, Antikalamos, Kalamata, Greece.
| | - Marina Brokaki
- Laboratory of Agricultural Entomology and Zoology, Department of Agricultural Technology, Technological Educational Institute of Peloponnese, 24 100, Antikalamos, Kalamata, Greece
| | - George J Stathas
- Laboratory of Agricultural Entomology and Zoology, Department of Agricultural Technology, Technological Educational Institute of Peloponnese, 24 100, Antikalamos, Kalamata, Greece
| | - Vasilios Demopoulos
- Laboratory of Plant Protection Products, Department of Agricultural Technology, Technological Educational Institute of Peloponnese, 24 100, Antikalamos, Kalamata, Greece
| | - Giannis Louloudakis
- Laboratory of Agricultural Entomology and Zoology, Department of Agricultural Technology, Technological Educational Institute of Peloponnese, 24 100, Antikalamos, Kalamata, Greece
| | - John T Margaritopoulos
- Department of Plant Protection, Institute of Industrial and Fodder Crops, Hellenic Agricultural Organization "DEMETER", NAGREF, Volos, Greece
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16
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Müller T, Römer CI, Müller C. Parental sublethal insecticide exposure prolongs mating response and decreases reproductive output in offspring. J Appl Ecol 2019. [DOI: 10.1111/1365-2664.13398] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Thorben Müller
- Department of Chemical Ecology Bielefeld University Bielefeld Germany
| | - Clara Isis Römer
- Department of Chemical Ecology Bielefeld University Bielefeld Germany
| | - Caroline Müller
- Department of Chemical Ecology Bielefeld University Bielefeld Germany
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