1
|
Silva APN, Carvalho GA, Haddi K. The interplay between temperature and an insecticide mixture modulates the stimulatory response of sublethally exposed Myzus persicae. ECOTOXICOLOGY (LONDON, ENGLAND) 2024:10.1007/s10646-024-02780-w. [PMID: 38990494 DOI: 10.1007/s10646-024-02780-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/01/2024] [Indexed: 07/12/2024]
Abstract
Temperature can interact with chemical pesticides and modulate their toxicity. Sublethal exposure to pesticides is known to trigger hormetic responses in pests. However, the simultaneous effects of temperature and sublethal exposure to single or mixture-based insecticides on the insects' stimulatory responses are not frequently considered in toxicological studies. Here we investigated the combined effects of temperature on the lethal and sublethal responses of the green peach aphid Myzus persicae after exposure to commercial formulations of a neonicotinoid (thiamethoxam) and a pyrethroid (lambda-cyhalothrin) and their mixture. Firstly, the concentration-response curves of the insecticides were determined under four temperatures (15 °C, 20 °C, 25 °C, and 28 °C) by the leaf dipping method. Subsequently, the sublethal concentrations C0, CL1, CL5, CL10, CL15, CL20, and CL30 were selected to assess sublethal effects on aphids' longevity and reproduction under the same temperatures. The results showed that the mixture of thiamethoxam + lambda-cyhalothrin caused greater toxicity to aphids compared to the formulations with each active ingredient alone and that the toxicity was higher at elevated temperatures. Furthermore, the exposure to low concentrations of the mixture (thiamethoxam + lambda-cyhalothrin) and the separated insecticides induced stimulatory responses in the longevity and fecundity of exposed aphid females, but the occurrence of such hormetic responses depended on the insecticide type, its sublethal concentration, and the temperature as well as their interactions.
Collapse
Affiliation(s)
- Ana Paula Nascimento Silva
- Laboratory of Molecular Entomology and Ecotoxicology, Department of Entomology, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil
| | - Geraldo Andrade Carvalho
- Laboratory of Ecotoxicology and Integrated Pest Management, Department of Entomology, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil
| | - Khalid Haddi
- Laboratory of Molecular Entomology and Ecotoxicology, Department of Entomology, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil.
| |
Collapse
|
2
|
Tang Q, Li X, He Y, Ma K. RNA interference of NADPH-cytochrome P450 reductase increases the susceptibility of Aphis gossypii Glover to sulfoxaflor. Comp Biochem Physiol C Toxicol Pharmacol 2023; 274:109745. [PMID: 37717675 DOI: 10.1016/j.cbpc.2023.109745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/29/2023] [Accepted: 09/13/2023] [Indexed: 09/19/2023]
Abstract
NADPH-cytochrome P450 reductase (CPR) is essential for the detoxification of endogenous and exogenous substances mediated by cytochrome P450. While several insect CPRs have been found to be associated with insecticide resistance, the CPR of Aphis gossypii has not been characterized, and its functional role in insecticide resistance remains undefined. In this study, we cloned and characterized the full-length sequence of A. gossypii CPR (AgCPR). The deduced amino acid sequence of AgCPR contains all conserved domains of CPR, which shows high similarity to other insect CPRs and was clustered into a same branch of aphids according to phylogenetic analysis. The transcript of AgCPR was present in all developmental stages, with the highest expression in the adult stage. Furthermore, the expression of AgCPR could be induced by sulfoxaflor, a commonly used insecticide, in a time- and dose-dependent manner. Further silencing of AgCPR by feeding dsRNA significantly increased the susceptibility of A. gossypii to this insecticide. These findings suggest that AgCPR may play a significant role in the susceptibility of A. gossypii to sulfoxaflor and in the development of P450-mediated resistance to sulfoxaflor.
Collapse
Affiliation(s)
- Qiuling Tang
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, 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
| | - Yanping He
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, 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.
| |
Collapse
|
3
|
Tang LD, Guo LH, Ali A, Desneux N, Zang LS. Synergism of Adjuvants Mixed With Spinetoram for the Management of Bean Flower Thrips, Megalurothrips usitatus (Thysanoptera: Thripidae) in Cowpeas. JOURNAL OF ECONOMIC ENTOMOLOGY 2022; 115:2013-2019. [PMID: 36178344 DOI: 10.1093/jee/toac149] [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: 05/25/2022] [Indexed: 06/16/2023]
Abstract
The bean flower thrips, Megalurothrips usitatus (Bagnall) is an economically important insect pest of cowpea, Vigna unguiculata (L.) Walp in south China. Spinetoram is a newly available commercial active ingredient in the spinosyn mode of action group of insecticides that has been recommended for thrips management in China. In this study, the toxicity and efficacy of spinetoram for controlling M. usitatus were evaluated and compared to six other conventional insecticides. In addition, the synergistic effects of adjuvants (Silwet 806, Silwet 618, AgroSpred 910, and AgroSpred Prime) mixed with spinetoram for thrips control on cowpea were evaluated in both the laboratory and the field. Results of this study showed that spinetoram had higher toxicity and field efficacy of M. usitatus than other tested insecticides. A significant increase in efficacy was observed when spinetoram was applied at a recommended rate of 0.67 ml/L, mixed with Silwets (806 and 618) at the rate of 0.5 ml/L. Reductions of 50% and 40% in thrips infestation in the field over treatments without adjuvants were observed 3- and 7-days posttreatments, respectively. However, no significant reduction of M. usitatus was recorded when spinetoram was mixed with AgroSpreds (910 and Prime). Furthermore, no significant differences were found in thrips infestation between spinetoram sprayed alone at the rate of 0.67 ml/L and a reduced rate of spinetoram (0.45 ml/L) mixed with Silwets (806 and 618). The current research shows that Silwets mixed with spinetoram has a synergistic effect in the management of thrips.
Collapse
Affiliation(s)
- Liang-De Tang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, P.R. China
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, P.R. China
| | - Ling-Hang Guo
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, P.R. China
| | - Asad Ali
- Department of Entomology, Abdul Wali Khan University, Mardan 23200, Pakistan
| | - Nicolas Desneux
- Université Côte d'Azur, INRAE, CNRS, UMR ISA, 06000 Nice, France
| | - Lian-Sheng Zang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, P.R. China
| |
Collapse
|
4
|
Status of the Resistance of Aphis gossypii Glover, 1877 (Hemiptera: Aphididae) to Afidopyropen Originating from Microbial Secondary Metabolites in China. Toxins (Basel) 2022; 14:toxins14110750. [PMID: 36356000 PMCID: PMC9695873 DOI: 10.3390/toxins14110750] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/18/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022] Open
Abstract
The resistance of cotton aphids to various forms of commonly used pesticides has seriously threatened the safety of the cotton production. Afidopyropen is a derivative of microbial metabolites with pyropene insecticide, which has been shown to be effective in the management of Aphis gossypii. Several field populations of Aphis gossypii were collected from the major cotton-producing regions of China from 2019 to 2021. The resistance of these populations to afidopyropen was estimated using the leaf-dipping method. The LC50 values of these field populations ranged from 0.005 to 0.591 mg a.i. L-1 in 2019, from 0.174 to 4.963 mg a.i. L-1 in 2020 and from 0.517 to 14.16 mg a.i. L-1 in 2021. The resistance ratios for all A. gossypii populations ranged from 0.03 to 3.97 in 2019, from 1.17 to 33.3 in 2020 and from 3.47 to 95.06 in 2021. The afidopyropen resistance exhibited an increasing trend in the field populations of Cangzhou, Binzhou, Yuncheng, Kuerle, Kuitun, Changji and Shawan from 2019 to 2021. This suggests that the resistance development of the cotton aphid to afidopyropen is inevitable. Therefore, it is necessary to rotate or mix afidopyropen with other insecticides in order to inhibit the development of afidopyropen resistance in field populations.
Collapse
|
5
|
Field evolved insecticide resistance in the cotton mealybug Phenacoccus solenopsis and its direct and indirect impacts on the endoparasitoid Aenasius arizonensis. Sci Rep 2022; 12:16764. [PMID: 36202878 PMCID: PMC9537310 DOI: 10.1038/s41598-022-20779-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 09/19/2022] [Indexed: 11/17/2022] Open
Abstract
Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) an invasive mealybug on cotton is primarily controlled by conventional insecticides. An endoparasitoid Aenasius arizonenesis (Girault) (Hymenoptera: Encyrtidae) is a potential biocontrol agent of this pest. We assessed the susceptibility in field populations of P. solenopsis and A. arizonensis to commonly used insecticides: profenofos, imidacloprid and thiodicarb. Reproductive traits of the parasitoid and Environmental Risk Assessment (ERA) parameters viz., Reduction coefficient, Descriptive analysis, Risk Index (RI), Selectivity ratio and Hazard quotient were measured to assess the direct and indirect effects of these insecticides on the parasitoid. Probit analysis revealed heterogeneity in the insecticide resistance development for both the cotton mealybug and its parasitoid. The field populations of P. solenopsis exhibited resistance to profenofos (18.87–59.86 folds) and thiodicarb (20.07 folds) and susceptibility to imidacloprid. Development of resistance to profenofos was observed in field populations of A. arizonensis. Exposure to lethal doses of imidacloprid and profenofos caused a reduction in parasitization (19–23%) and adult emergence (62–69%) of the parasitoid. Profenofos, thiodicarb and imidacloprid were found to be hazardous, non-selective and harmful to the endoparasitoid, A. arizonensis. There is an urgent need for optimizing insecticide applications for sustainable management of this invasive mealybug in cotton.
Collapse
|
6
|
Passos LC, Ricupero M, Gugliuzzo A, Soares MA, Desneux N, Carvalho GA, Zappalà L, Biondi A. Does the dose make the poison? Neurotoxic insecticides impair predator orientation and reproduction even at low concentrations. PEST MANAGEMENT SCIENCE 2022; 78:1698-1706. [PMID: 34994495 PMCID: PMC9306720 DOI: 10.1002/ps.6789] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/24/2021] [Accepted: 01/07/2022] [Indexed: 05/02/2023]
Abstract
BACKGROUND Pesticides can be noxious to non-target beneficial arthropods and their negative effects have been recently recognized even at low doses. The predator Nesidiocoris tenuis (Reuter) (Hemiptera: Miridae) plays an important role in controlling insect pests in solanaceous crops, but its concurrent herbivory often poses relevant concerns for tomato production. Although insecticide side effects on N. tenuis have been previously studied, little is known on the potential implications of neurotoxic chemicals at low concentrations. We assessed the baseline toxicity of three neurotoxic insecticides (lambda-cyhalothrin, spinosad and chlorpyrifos) on N. tenuis by topical contact exposure. The behavioral and reproduction capacity of the predator was then investigated upon exposure to three estimated low-lethal concentrations (LC1 , LC10 and LC30 ). RESULTS Predator survival varied among insecticides and concentrations, with LC30 /label rate ratios ranging from 8.45% to 65.40% for spinosad and lambda-cyhalothrin, respectively. All insecticides reduced the fertility of N. tenuis females at all estimated low-lethal concentrations. Chlorpyrifos seriously compromised predator orientation towards a host plant even at LC1 , while the same effect was observed for lambda-cyhalothrin and spinosad solely at LC30 . Lambda-cyhalothrin (at all concentrations) and chlorpyrifos (at LC10 and LC30 ) also affected the time taken by N. tenuis females to make a choice. CONCLUSION The results indicate that all three insecticides can be detrimental to N. tenuis and should be avoided when presence of the predator is desirable. © 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
Collapse
Affiliation(s)
- Luis C Passos
- Laboratório de Ecotoxicologia e MIP, Departamento de EntomologiaUniversidade Federal de LavrasLavrasBrazil
- Department of Agriculture, Food and EnvironmentUniversity of CataniaCataniaItaly
| | - Michele Ricupero
- Department of Agriculture, Food and EnvironmentUniversity of CataniaCataniaItaly
| | - Antonio Gugliuzzo
- Department of Agriculture, Food and EnvironmentUniversity of CataniaCataniaItaly
| | - Marianne A Soares
- Laboratório de Ecotoxicologia e MIP, Departamento de EntomologiaUniversidade Federal de LavrasLavrasBrazil
| | | | - Geraldo A Carvalho
- Laboratório de Ecotoxicologia e MIP, Departamento de EntomologiaUniversidade Federal de LavrasLavrasBrazil
| | - Lucia Zappalà
- Department of Agriculture, Food and EnvironmentUniversity of CataniaCataniaItaly
| | - Antonio Biondi
- Department of Agriculture, Food and EnvironmentUniversity of CataniaCataniaItaly
| |
Collapse
|
7
|
Khan MM, Hafeez M, Elgizawy K, Wang H, Zhao J, Cai W, Ma W, Hua H. Sublethal effects of chlorantraniliprole on Paederus fuscipes (Staphylinidae: Coleoptera), a general predator in paddle field. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 291:118171. [PMID: 34562692 DOI: 10.1016/j.envpol.2021.118171] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/17/2021] [Accepted: 09/10/2021] [Indexed: 06/13/2023]
Abstract
Paederus fuscipes is a general predator in rice fields and a non-target organism of chlorantraniliprole, an effective insecticide for insect-pest control in paddy fields. Pesticide hazards to non-target organisms have been a growing global problem for decades. This study was designed to evaluate the toxicity of chlorantraniliprole at lethal and sublethal levels against P. fuscipes larvae and adults. The LC50 of chlorantraniliprole against P. fuscipes adults and larvae were respectively 535.49 and 111.24 mg a.i. L-1, which is higher than the dosage recommended for use in the field (59.38 mg a.i. L-1), but the LC30 and LC10 for larvae are lower than the recommended field dose which showed that the sublethal effects on immature stages are inevitable. Treatment at larval stage with LC30 of chlorantraniliprole significantly elongated the pre-imaginal developmental and pre-oviposition periods. Also, adults exposed directly to chlorantraniliprole oviposited significantly less number of eggs in both LC10 and LC30 treatments. Furthermore, the larval predation efficiency and female bodyweight were also reduced due to exposure to sublethal doses. Meanwhile, the activities of antioxidant (SOD, POD and CAT) and detoxification (P450, AChE and GST) enzymes were also significantly affected by the exposure to these sublethal concentrations. These findings showed that sublethal doses of chlorantraniliprole adversely influenced P. fuscipes development and physiology, and therefore its use as part of integrative pest management should be given further considerations.
Collapse
Affiliation(s)
- Muhammad Musa Khan
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China; Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Research Centre of Biological Control, South China Agricultural University, Guangzhou, 510642, PR China
| | - Muhammad Hafeez
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China; State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences Hangzhou, 310021, China
| | - Karam Elgizawy
- Plant Protection Department, Faculty of Agriculture, Benha University, Moshtohor, Toukh, 13736, Egypt
| | - Hanyu Wang
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Jing Zhao
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Wanlun Cai
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Weihua Ma
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China.
| | - Hongxia Hua
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China
| |
Collapse
|
8
|
Dai C, Ricupero M, Wang Z, Desneux N, Biondi A, Lu Y. Transgenerational Effects of a Neonicotinoid and a Novel Sulfoximine Insecticide on the Harlequin Ladybird. INSECTS 2021; 12:insects12080681. [PMID: 34442247 PMCID: PMC8396657 DOI: 10.3390/insects12080681] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/24/2021] [Accepted: 07/26/2021] [Indexed: 11/16/2022]
Abstract
Simple Summary The coccinellid Harmonia axyridis is an important natural enemy of various agricultural pests, including aphids. Agrochemicals can negatively affect the performance of arthropod natural enemies and, thus, the ecological services they provide. In this context, we assessed the lethal and sublethal effects of two neuroactive compounds with different chemical structures: the long-established neonicotinoid insecticide, imidacloprid, and the novel, sulfoximine insecticide, sulfoxaflor, both of which act on nicotinic acetylcholine receptors against adult and developmental stages of H. axyridis. Estimated LC20 and LC50 doses of imidacloprid for a target pest species, Aphis gossypii, resulted in significantly greater mortality in contact bioassays against adult H. axyridis compared with equivalent LC20 and LC50 doses of sulfoxaflor. Both concentrations of imidacloprid and sulfoxaflor significantly reduced the proportion of ovipositing females of parental generation. LC20 and LC50 dose of imidacloprid and LC50 dose of sulfoxaflor significantly reduced both the fecundity and fertility of parental generation. In progeny of parents exposed to both insecticides at LC50 concentrations the juvenile survival rate was significantly reduced, and both concentrations of imidacloprid and sulfoxaflor, except LC20 dose of sulfoxaflor, significantly prolonged the larval development time. These experimental results disclose the negative influence of sulfoxaflor and imidacloprid at low concentrations on the harlequin ladybird and its subsequent generation. Hence, actions should be taken to optimize imidacloprid and sulfoxaflor applications for the control of aphid pests, aiming at preserving the biocontrol services provided by this important predator. Abstract The harlequin ladybird, Harmonia axyridis Pallas (Coleoptera: Coccinellidae), is a generalist predator and an effective biocontrol agent of various insect pests that has been exploited for the control of aphid pests in the greenhouse and field. However, insecticides are widely used to control aphid pests worldwide and the potential non-target effects of sulfoxaflor and imidacloprid for controlling aphid pests towards this biocontrol agent are little known. Although both sulfoxaflor and imidacloprid act on nicotinic acetylcholine receptors of insects, sulfoxaflor has a novel chemical structure compared with neonicotinoids. We assessed the lethal, sublethal and transgenerational effects of sulfoxaflor and imidacloprid on H. axyridis simultaneously exposed via ingestion of contaminated prey and via residual contact on the host plant at LC20 and LC50 doses estimated for the cotton aphid. Imidacloprid significantly reduced the survival of H. axyridis adults compared to sulfoxaflor at the same lethal concentration against cotton aphid. Both concentrations of imidacloprid and sulfoxaflor reduced the proportion of ovipositing females, and both concentrations of imidacloprid and sulfoxaflor, except LC20 dose of sulfoxaflor, reduced the fecundity and fertility of the parental generation. In the progeny of imidacloprid- and sulfoxaflor-exposed parents, both tested LC50 concentrations significantly decreased the juvenile survival rate, and both concentrations of imidacloprid and sulfoxaflor, except LC20 dose of sulfoxaflor, prolonged the development time. Our findings provide evidence of the negative influence of imidacloprid and sulfoxaflor at low lethal concentrations on the harlequin ladybird and on the progeny of exposed individuals, i.e., transgenerational effects. Hence, these findings stress the importance of optimizing the applications of imidacloprid and sulfoxaflor for the control of aphid pests, aiming at preserving the biocontrol services provided by H. axyridis throughout the integrated pest management approach.
Collapse
Affiliation(s)
- Changchun Dai
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
- Department of Plant Protection, College of Agriculture, Northeast Agricultural University, Harbin 150030, China;
- Langfang Experimental Station of the Chinese Academy of Agricultural Sciences, Langfang 065005, China
| | - Michele Ricupero
- Department of Agriculture Food and Environment, University of Catania, 95123 Catania, Italy; (M.R.); (A.B.)
| | - Zequn Wang
- Department of Plant Protection, College of Agriculture, Northeast Agricultural University, Harbin 150030, China;
| | - Nicolas Desneux
- Université Côte d’Azur, INRAE, CNRS, UMR ISA, 06000 Nice, France;
| | - Antonio Biondi
- Department of Agriculture Food and Environment, University of Catania, 95123 Catania, Italy; (M.R.); (A.B.)
| | - Yanhui Lu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
- Correspondence:
| |
Collapse
|
9
|
Twardowski JP, Hurej M, Twardowska K. Effect of Ingestion Exposure of Selected Insecticides on Coccinella septempunctata and Harmonia axyridis (Coleoptera: Coccinellidae). INSECTS 2021; 12:insects12050434. [PMID: 34064985 PMCID: PMC8150297 DOI: 10.3390/insects12050434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 04/25/2021] [Accepted: 05/07/2021] [Indexed: 11/16/2022]
Abstract
The sensitivity to thiacloprid and lambda-cyhalothrin ingested from prey organisms was studied in Coccinella septempunctata and Harmonia axyridis, since the effect of ingestion exposure to these insecticides is unknown in these species. All developmental stages of the ladybirds were fed on Acyrthosiphon pisum treated with half or full field rate of the insecticides. Almost all instars were killed within 3 h of the start of ingestion of lambda-cyhalotrin-treated prey. The action of thiacloprid was more extended in time in both coccinellids and more variable between their instars. Reducing the field rate of lambda-cyhalothrin seems to have no practical value for the survival of either of the coccinellid species. Contrastingly, using half instead of the full field rate of thiacloprid may enhance the chances of survival in L1, L2, and L4 larvae of both species. Of all developmental stages tested, the survival dynamics of the adults of either species are closest to one another, whereas the apparent difference in the species response to the dose rate of thiacloprid was found in the L4 stage.
Collapse
|
10
|
Sheng S, Wang J, Zhang XR, Liu ZX, Yan MW, Shao Y, Zhou JC, Wu FA, Wang J. Evaluation of Sensitivity to Phoxim and Cypermethrin in an Endoparasitoid, Meteorus pulchricornis (Wesmael) (Hymenoptera: Braconidae), and Its Parasitization Efficiency Under Insecticide Stress. JOURNAL OF INSECT SCIENCE (ONLINE) 2021; 21:6134349. [PMID: 33580255 PMCID: PMC7881259 DOI: 10.1093/jisesa/ieab002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Indexed: 04/29/2023]
Abstract
Insecticides can have consequences for beneficial arthropods. Insect parasitoids can contact insecticides through direct exposure spray droplets or residues on crop foliage. Here, we focus on better understand the response of Meteorus pulchricornis (Wesmael), a parasitoid wasp of lepidopteran pests, and its detoxification mechanisms on stress caused by phoxim and cypermethrin. Hence, we determined the dose-mortality curves and estimating the sublethal concentrations (LC30 and LC50). Then, we applied the sublethal concentrations against adult parasitoids to assess its survival, parasitism efficacy, and also developmental and morphometric parameters of their offspring. Simultaneously, we check the activities of glutathione S-transferase (GST), acetylcholinesterase (AChE), and peroxidase (POD) after sublethal exposure of both insecticides, which has measured until 48 h after treatment. Overall, phoxim and cypermethrin exhibited acute lethal activity toward the parasitoid with LC50 values 4.608 and 8.570 mg/liter, respectively. Also, we detect that LC30 was able to trigger the enzymatic activity of GST, AChE, and POD, suggesting a potential detoxification mechanism. However, even when subjected to sublethal exposure, our results indicate strong negatives effects, in particular for phoxim, which has affected the parasitism efficacy and also the developmental and morphometric parameters of M. pulchricornis offspring. Therefore, it can be concluded that both phoxim and cypermethrin have negative impacts on M. pulchricornis and we suggest cautioning their use and the need for semifield and field assessments to confirm such an impact.
Collapse
Affiliation(s)
- Sheng Sheng
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, PR China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, PR China
- Corresponding author, e-mail:
| | - Jiao Wang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, PR China
| | - Xiao-rui Zhang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, PR China
| | - Zhi-xiang Liu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, PR China
| | - Meng-wen Yan
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, PR China
| | - Ying Shao
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, PR China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, PR China
| | - Jin-cheng Zhou
- College of Plant Protection, Shenyang Agricultural University, Shenyang, PR China
| | - Fu-an Wu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, PR China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, PR China
| | - Jun Wang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, PR China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, PR China
| |
Collapse
|
11
|
Parsaeyan E, Saber M, Safavi SA, Poorjavad N, Biondi A. Side effects of chlorantraniliprole, phosalone and spinosad on the egg parasitoid, Trichogramma brassicae. ECOTOXICOLOGY (LONDON, ENGLAND) 2020; 29:1052-1061. [PMID: 32448953 DOI: 10.1007/s10646-020-02235-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/15/2020] [Indexed: 06/11/2023]
Abstract
The combined use of chemicals and biological control is not always a successful strategy owing to the potential side effects on biocontrol agents. Lethal and sublethal effects of three commonly used insecticides were assessed on adult and immature stages of the egg parasitoid Trichogramma brassicae Bezdenko (Hymenoptera: Trichogrammatidae). Recommended field concentrations of chlorantraniliprole, phosalone and spinosad caused mortality on preimaginal stages by 24, 87, and 98%, respectively. Lethal effects on parasitoid adults exposed to the insecticide dry residues were estimated as median lethal concentrations (LC50) that were 13.28, 0.25, and 0.03 µg a.i. ml-1 for chlorantraniliprole, phosalone, and spinosad, respectively. The effect of a low lethal concentration (LC30) of the compounds was evaluated on various adult biological traits, such as longevity, fecundity, emergence rate and other life table parameters. All compounds caused detrimental effects on all the estimated demographical indexes. Chlorantraniliprole affected the net reproductive rate, mean generation time and doubling time in comparison to the control; while, phosalone and spinosad adversely affected all assessed parameters. Phosalone and spinosad significantly reduced gross reproductive rate, net reproductive rate, intrinsic rate of increase, finite rate of increase, mean generation time and doubling time and reduced longevity, fecundity, emergence rate related to other biological parameters in comparison with control. The results suggest that all compounds are not fully compatible with the activity of T. brassicae, and that the inclusion of chlorantraniprole, spinosad and phosalone into Integrated Pest Management (IPM) involving this parasitoid has to be avoided. Nevertheless, further studies in open field conditions and on a multiple generation scale are necessary for providing a more definitive conclusion on the IPM suitability of the three tested insectcides.
Collapse
Affiliation(s)
- Ehsan Parsaeyan
- Department of Plant Protection, Faculty of Agriculture, Urmia University, Urmia, Iran
| | - Moosa Saber
- Department of Plant Protection, Faculty of Agriculture, University of Tabriz, Tabriz, Iran.
| | - Seyed Ali Safavi
- Department of Plant Protection, Faculty of Agriculture, Urmia University, Urmia, Iran
| | - Nafiseh Poorjavad
- Department of Plant Protection, Faculty of Agriculture, Isfahan University of Technology, Isfahan, Iran
| | - Antonio Biondi
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
| |
Collapse
|