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Kim SE, Kim HK, Kim GH. Sublethal Effects of Spirotetramat, Cyantraniliprole, and Pymetrozine on Aphis gossypii (Hemiptera: Aphididae). Insects 2024; 15:247. [PMID: 38667377 PMCID: PMC11050133 DOI: 10.3390/insects15040247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 03/19/2024] [Accepted: 04/01/2024] [Indexed: 04/28/2024]
Abstract
The toxicity and sublethal effects of three insecticides (spirotetramat, cyantraniliprole, and pymetrozine) on Aphis gossypii, a major agricultural pest, were investigated. The nymphal stage showed greater susceptibility than the adult stage to all the insecticides, with a difference of up to 8.9 times at the LC50 of spirotetramat. The effects of sublethal concentrations (LC10, LC30, LC50, and LC70) of the insecticides on the on the developmental period, survival rate, adult longevity, fecundity, and deformity rate were compared with those of the control. Compared with the control, cyantraniliprole and pymetrozine did not significantly affect the developmental period in the parental or F1 generation when applied at the nymphal stage at any concentration. Nonviable nymphs occurred in the F1 generation when both nymphs and adults were treated with spirotetramat and cyantraniliprole but not in the F2 generation. The age-specific maternity (lxmx) of A. gossypii treated with sublethal concentrations (LC10, LC30) decreased with increasing concentration. Spirotetramat at the LC30 resulted in significant differences in all life table parameters (R0, rm, λ, T, DT) compared with those of the control. Similarly, compared with that of the control (43.8), the net reproductive rate (R0) significantly decreased for all the insecticides except cyantraniliprole at the LC10 (37.5). Therefore, this study indicated that sublethal concentrations (over the LC30) of spirotetramat, cyantraniliprole, or pymetrozine might be useful for the density management of A. gossypii.
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Affiliation(s)
| | | | - Gil Hah Kim
- Department of Plant Medicine, College of Agriculture, Life and Environment Science, Chungbuk National University, Cheongju 28644, Republic of Korea; (S.E.K.); (H.K.K.)
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Liang Z, Xu Q, Chen X, Xiao J, Gao Q, Cao H, Liao M. Ecological Toxicity of Cyantraniliprole against Procambarus clarkii: Histopathology, Oxidative Stress, and Intestinal Microbiota. J Agric Food Chem 2024; 72:3363-3373. [PMID: 38324778 DOI: 10.1021/acs.jafc.3c07693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Cyantraniliprole is a novel insecticide recently introduced for rice pest control that may cause potential threats to the red swamp crayfish (Procambarus clarkii) in rice-crayfish coculture systems. In this study, we investigated the acute toxicity of cyantraniliprole against P. clarkii with a LC50 value of 149.77 mg/L (96 h), first. Some abnormal behaviors of P. clarkii treated with 125 mg/L cyantraniliprole, including incunabular hyperexcitability, imbalance, inactivity, and increased excretion were observed. Moreover, it was observed that exposure to 5 mg/L cyantraniliprole for 14 days resulted in histopathological alterations in abdominal muscle, gills, hepatopancreas, and intestines. Furthermore, exposure to 0.05 and 5 mg/L cyantraniliprole induced increased activities of several oxidative stress-related enzymes, which was verified by the upregulation of related genes. Additionally, dysregulation of the intestinal microbiota was determined via 16S rRNA sequencing. These results will provide the basis for the utilization of cyantraniliprole in the fields of rice-crayfish integrated system.
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Affiliation(s)
- Zihao Liang
- School of Plant Protection, Anhui Agricultural University, Hefei, Anhui Province 230036, China
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Hefei, Anhui Province 230036, China
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, Anhui Province 230036, China
| | - Qiang Xu
- School of Plant Protection, Anhui Agricultural University, Hefei, Anhui Province 230036, China
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Hefei, Anhui Province 230036, China
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, Anhui Province 230036, China
| | - Xin Chen
- School of Plant Protection, Anhui Agricultural University, Hefei, Anhui Province 230036, China
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Hefei, Anhui Province 230036, China
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, Anhui Province 230036, China
| | - Jinjing Xiao
- School of Plant Protection, Anhui Agricultural University, Hefei, Anhui Province 230036, China
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Hefei, Anhui Province 230036, China
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, Anhui Province 230036, China
| | - Quan Gao
- School of Plant Protection, Anhui Agricultural University, Hefei, Anhui Province 230036, China
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Hefei, Anhui Province 230036, China
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, Anhui Province 230036, China
| | - Haiqun Cao
- School of Plant Protection, Anhui Agricultural University, Hefei, Anhui Province 230036, China
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Hefei, Anhui Province 230036, China
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, Anhui Province 230036, China
| | - Min Liao
- School of Plant Protection, Anhui Agricultural University, Hefei, Anhui Province 230036, China
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Hefei, Anhui Province 230036, China
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, Anhui Province 230036, China
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Ji Y, Zheng H, Zhang C, Tan X, He C, Fu B, Du T, Liang J, Wei X, Gong P, Liu S, Yang J, Huang M, Yin C, Xue H, Hu J, Du H, Xie W, Yang X, Zhang Y. Dynamic monitoring of the insecticide resistance status of Bemisia tabaci across China from 2019-2021. Pest Manag Sci 2024; 80:341-354. [PMID: 37688583 DOI: 10.1002/ps.7763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 09/01/2023] [Accepted: 09/07/2023] [Indexed: 09/11/2023]
Abstract
BACKGROUND Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) is a major agricultural insect pest that causes severe economic losses worldwide. Several insecticides have been applied to effectively control this key pest. However, owing to the indiscriminate use of chemical insecticides, B. tabaci has developed resistance against these chemical compounds over the past several years. RESULTS From 2019 to 2021, 23 field samples of B. tabaci were collected across China. Twenty species were identified as the Mediterranean 'Q' type (MED) and three were identified as MED/ Middle East-Asia Minor 1 mixtures. Subsequently, resistance of the selected populations to different insecticides was evaluated. The results showed that 13 populations developed low levels of resistance to abamectin. An overall upward trend in B. tabaci resistance toward spirotetramat, cyantraniliprole and pyriproxyfen was observed. In addition, resistance to thiamethoxam remained low-to-moderate in the 23 field populations. CONCLUSION These findings suggest that the overall resistance of the field-collected B. tabaci populations has shown an upward trend over the years in China. We believe our study can provide basic data to support integrated pest management and insecticide resistance management of field B. tabaci in China. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Yao Ji
- College of Plant Protection, Hunan Agricultural University, Changsha, China
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Huixin Zheng
- College of Plant Protection, Hunan Agricultural University, Changsha, China
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Chengjia Zhang
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
- Hunan Provincial Key Laboratory of Pesticide Biology and Precise Use Technology, Hunan Agricultural Biotechnology Research Institute, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Xing Tan
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Chao He
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Buli Fu
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Tianhua Du
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jinjin Liang
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xuegao Wei
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Peipan Gong
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shaonan Liu
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jing Yang
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Mingjiao Huang
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Cheng Yin
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Hu Xue
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jinyu Hu
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - He Du
- College of Plant Protection, Hunan Agricultural University, Changsha, China
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wen Xie
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xin Yang
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Youjun Zhang
- College of Plant Protection, Hunan Agricultural University, Changsha, China
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Li J, Jin L, Lv Y, Ding Y, Yan K, Zhang H, Pan Y, Shang Q. Inducible Cytochrome P450s in the Fat Body and Malpighian Tubules of the Polyphagous Pests of Spodoptera litura Confer Xenobiotic Tolerance. J Agric Food Chem 2023; 71:14517-14526. [PMID: 37773746 DOI: 10.1021/acs.jafc.3c04865] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/01/2023]
Abstract
Cytochrome P450 plays vital roles in detoxifying xenobiotics. In this study, SlCYP340A and SlCYP340L expression in the Spodoptera litura fat body and SlCYP332A1, SlCYP6AB12, SlCYP6AB58, SlCYP6AB59, and SlCYP6AN4 expression in the Malpighian tubules were significantly upregulated after cyantraniliprole exposure, and SlCYP6AB58 and SlCYP6AB59 expression levels were simultaneously increased in the Malpighian tubules after gossypol treatment. Drosophila ectopically expressing candidate P450 genes showed that SlCYP332A1, SlCYP6AB12, SlCYP6AB59, SlCYP6AN4, and SlCYP340A conferred cyantraniliprole tolerance. The overexpression of SlCYP6AB58 and SlCYP6AB59 in Drosophila increased the number of eggs laid under the gossypol treatment. Moreover, the knockdown of SlCYP332A1, SlCYP6AB12, SlCYP6AB59, SlCYP6AN4, and SlCYP340A increased S. litura mortality under the cyantraniliprole treatment. Homology modeling and molecular docking results suggested that candidate P450 has the potential to bind with cyantraniliprole. These results indicate that the CYP3 and CYP4 genes participate in cyantraniliprole detoxification and that SlCYP6AB59 may be simultaneously involved in the gossypol tolerance of S. litura.
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Affiliation(s)
- Jianyi Li
- College of Plant Science, Jilin University, Changchun 130062, PR China
| | - Long Jin
- College of Plant Science, Jilin University, Changchun 130062, PR China
| | - Yuntong Lv
- College of Plant Science, Jilin University, Changchun 130062, PR China
| | - Yaping Ding
- College of Plant Science, Jilin University, Changchun 130062, PR China
| | - Kunpeng Yan
- College of Plant Science, Jilin University, Changchun 130062, PR China
| | - Hang Zhang
- College of Plant Science, Jilin University, Changchun 130062, PR China
| | - Yiou Pan
- College of Plant Science, Jilin University, Changchun 130062, PR China
| | - Qingli Shang
- College of Plant Science, Jilin University, Changchun 130062, PR China
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Liao M, Liang Z, Wu R, Xiao J, Gao Q, Cao H. Residue behavior of cyantraniliprole and its ecological effects on Procambarus clarkii associated with the rice-crayfish integrated system. Pest Manag Sci 2023; 79:1868-1875. [PMID: 36654512 DOI: 10.1002/ps.7364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 12/25/2022] [Accepted: 01/19/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND Cyantraniliprole, a second-generation diamide insecticide, was recently introduced in China, where the rice-crayfish integrated system (RCIS) is practiced to control rice pest infestations. The aim of this study was to investigate the residue behavior of cyantraniliprole in RCIS and its potential ecological effects on nontarget Procambarus clarkii in order to recommend safe pesticide application strategies. RESULTS Cyantraniliprole dissipated in rice plants according to first-order kinetics, with an average half-life of 5.25 days and a dissipation rate of >95% over 28 days. The terminal cyantraniliprole residue levels in rice straw, paddy hull and brown rice were all within 0.2 mg kg-1 , which is the China-recommended maximum residue limit. The tissues of P. clarkii accumulated and distributed cyantraniliprole in the descending order gill > hepatopancreas > intestine > muscles. Procambarus clarkii exposed to cyantraniliprole exhibited a moderate decrease in weight gain, specific growth rate and condition factor compared to the control group. Exposure of P. clarkii to cyantraniliprole caused histopathological alterations to the hepatopancreas, but the alterations were not statistically significant in the 60 g ai ha-1 cyantraniliprole group when compared with the control group. CONCLUSION We suggest that 10% cyantraniliprole oil dispersion be sprayed twice at an interval of 14 days and dosage of 60 g ai ha-1 during the growth stage of rice in RCIS. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Min Liao
- School of Plant Protection, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, China
| | - Zihao Liang
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, China
- School of Resource & Environment, Anhui Agricultural University, Hefei, China
| | - Ruifeng Wu
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, China
- School of Resource & Environment, Anhui Agricultural University, Hefei, China
| | - Jinjing Xiao
- School of Plant Protection, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, China
| | - Qun Gao
- School of Plant Protection, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, China
| | - Haiqun Cao
- School of Plant Protection, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, China
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Cao D, Zhang Y, Fu X, Wang F, Wei H, Zhou Q, Huang Y, Peng W. Uptake, Translocation, and Distribution of Cyantraniliprole in a Wheat Planting System. J Agric Food Chem 2023; 71:5127-5135. [PMID: 36972198 DOI: 10.1021/acs.jafc.2c08802] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Cyantraniliprole uptake, translocation, and distribution in wheat plants grown in hydroponics and soil conditions were investigated. The hydroponics experiment indicated that cyantraniliprole was prone to be absorbed by wheat roots mainly through the apoplastic pathway and predominately distributed in the cell-soluble fraction (81.4-83.6%) and ultimately transferred upward to leaves (TFleave/stem = 4.84 > TFstem/root = 0.67). In wheat-soil systems, the uptake of cyantraniliprole was similar to that in hydroponics. The accumulation of cyantraniliprole in wheat tissues was mainly affected by the content of soil organic matter and clay, resulting in the increased adsorption of cyantraniliprole onto soils (R2 > 0.991, P < 0.01), and was positively related to the concentration of cyantraniliprole in soil pore water (R2 > 0.991, P < 0.001). Besides, the absorption of cyantraniliprole by wheat was predicted well by the partition-limited model. These results increased our understanding of the absorption and accumulation of cyantraniliprole in wheat and were also helpful for guiding the practical application and risk evaluation of cyantraniliprole.
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Affiliation(s)
- Duantao Cao
- The Laboratory for Phytochemistry and Botanical Pesticides, College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, China
| | - Ying Zhang
- The Laboratory for Phytochemistry and Botanical Pesticides, College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, China
| | - Xiaoxiang Fu
- The Laboratory for Phytochemistry and Botanical Pesticides, College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, China
| | - Feiyan Wang
- College of Electronic Engineering, Xi'an University of Posts and Telecommunications, Xi'an 710061, China
| | - Hongyi Wei
- The Laboratory for Phytochemistry and Botanical Pesticides, College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, China
| | - Qinghong Zhou
- Jiangxi Province Key Laboratory of Tuberous Plant Biology, Jiangxi Agricultural University, Nanchang 330045, China
| | - Yingjin Huang
- Jiangxi Province Key Laboratory of Tuberous Plant Biology, Jiangxi Agricultural University, Nanchang 330045, China
| | - Wenwen Peng
- The Laboratory for Phytochemistry and Botanical Pesticides, College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, China
- Jiangxi Province Key Laboratory of Tuberous Plant Biology, Jiangxi Agricultural University, Nanchang 330045, China
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Li Z, Li W, Qin W, Liu J, He Y. Ampicillin enhanced the resistance of Myzus persicae to imidacloprid and cyantraniliprole. Pest Manag Sci 2023; 79:1388-1398. [PMID: 36453026 DOI: 10.1002/ps.7310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 11/09/2022] [Accepted: 12/01/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Recent studies have shown that symbionts are involved in regulating insecticide detoxification in insects. However, there are few studies on the relationship between the symbionts found in Myzus persicae and the mechanism underlying host detoxification of insecticides. In this study, antibiotic ampicillin treatment was used to investigate the possible relationship between symbiotic bacteria and the detoxification of insecticides in the host, M. persicae. RESULTS Bioassays showed that ampicillin significantly reduced the susceptibilities of M. persicae to imidacloprid and cyantraniliprole. Synergistic bioassays and RNAi assays showed that the susceptibilities of M. persicae to imidacloprid and cyantraniliprole were related to metabolic detoxification enzyme activities and the expression level of the cytochrome P450 gene, CYP6CY3. Also, treatment to a combination of ampicillin and enzyme inhibitors or dsCYP6CY3 showed that the negative effect of ampicillin on the susceptibility of M. persicae was effectively inhibited bydetoxification enzyme inhibitors and dsCYP6CY3. Additionally, ampicillin treatment resulted in significant increases in the activities of multifunctional oxidases and esterases, the expression level of CYP6CY3 and fitness of M. persicae. Further, ampicillin significantly reduced the total bacterial abundance and changed symbiont diversity in M. persicae. The abundance of Pseudomonadaceae decreased significantly, while the abundance of Rhodococcus and Buchnera increased significantly. CONCLUSION Our study showed that ampicillin enhanced the resistance levels to imidacloprid and cyantraniliprole of M. persicae, which might be related to the selective elimination of symbiotic bacteria, the upregulated activities of detoxification enzymes and the increased fitness. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Zengxin Li
- College of Plant Science and Technology, Hubei Key Laboratory of Insect Resource Application and Sustainable Pest Control, Huazhong Agricultural University, Wuhan, China
- Institute of Plant Protection, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Wenhong Li
- Institute of Plant Protection, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Weiwei Qin
- College of Plant Science and Technology, Hubei Key Laboratory of Insect Resource Application and Sustainable Pest Control, Huazhong Agricultural University, Wuhan, China
| | - Jingyou Liu
- College of Plant Science and Technology, Hubei Key Laboratory of Insect Resource Application and Sustainable Pest Control, Huazhong Agricultural University, Wuhan, China
| | - Yueping He
- College of Plant Science and Technology, Hubei Key Laboratory of Insect Resource Application and Sustainable Pest Control, Huazhong Agricultural University, Wuhan, China
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Li J, Lv Y, Liu Y, Bi R, Pan Y, Shang Q. Inducible Gut-Specific Carboxylesterase SlCOE030 in Polyphagous Pests of Spodoptera litura Conferring Tolerance between Nicotine and Cyantraniliprole. J Agric Food Chem 2023; 71:4281-4291. [PMID: 36877657 DOI: 10.1021/acs.jafc.3c00524] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Insecticides tolerance in herbivorous arthropods is associated with preadaptation to host plant allelochemicals. However, how plant secondary metabolites activate detoxifying metabolic genes to develop tolerance remains unclear. Herein, the tolerance of Spodoptera litura larvae to cyantraniliprole was increased after nicotine exposure. An S. litura α esterase, SlCOE030, was predominantly expressed in the midgut and induced after exposure to cyantraniliprole, nicotine, and cyantraniliprole plus nicotine. Drosophila melanogaster with ectopically overexpressed SlCOE030 enhanced cyantraniliprole and nicotine tolerance by 4.91- and 2.12-fold, respectively. Compared to UAS-SlCOE030 and Esg-GAL4 lines, the Esg > SlCOE030 line laid more eggs after nicotine exposure. SlCOE030 knockdown decreased the sensitivity of nicotine-treated S. litura larvae to cyantraniliprole. Metabolism assays indicated that recombinant SlCOE030 protein metabolizes cyantraniliprole. Homology modeling and molecular docking analysis demonstrated that SlCOE030 exhibits effective affinities for cyantraniliprole and nicotine. Thus, insect CarEs may result in the development of cross-tolerance between synthetic insecticides and plant secondary metabolites.
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Affiliation(s)
- Jianyi Li
- College of Plant Science, Jilin University, Changchun 130062, P. R. China
| | - Yuntong Lv
- College of Plant Science, Jilin University, Changchun 130062, P. R. China
| | - Yajing Liu
- College of Plant Science, Jilin University, Changchun 130062, P. R. China
| | - Rui Bi
- College of Plant Protection, Jilin Agricultural University, Changchun 130118, P. R. China
| | - Yiou Pan
- College of Plant Science, Jilin University, Changchun 130062, P. R. China
| | - Qingli Shang
- College of Plant Science, Jilin University, Changchun 130062, P. R. China
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Li X, Sun Z, Yan T, Li Y, Zhang X, Liu M, Lin Y, Zhang Z, Xu H. Residue and distribution of drip irrigation and spray application of two diamide pesticides in corn and dietary risk assessment for different consumer groups. J Sci Food Agric 2022; 102:6676-6686. [PMID: 35608937 DOI: 10.1002/jsfa.12035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 05/06/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND As the use of diamide insecticides on corn continues to increase, there is growing concern about their residue levels on corn and dietary risks to populations. In this study, the distribution, dispersion and transfer efficiency of two diamide insecticides (tetrachlorantraniliprole (TCAP) and cyantraniliprole (CNAP)) in different parts of corn and soil were investigated in a 1-year field trial in Guangzhou and Lanzhou using two different application methods - spray and drip irrigation, respectively - and the dietary risk of the insecticides to different consumer populations was assessed under the two application methods. RESULTS The results showed that drip irrigation had a longer persistence period than spraying, and there was a hysteresis in the absorption distribution of the agent in different parts of corn, which was gradually transferred to the leaves after absorption from the roots. The average TE1 (transfer efficiency) and TE2 were 0.230-0.261 and 1.749-1.851 for TCAP and 0.168-0.187 and 2.363-2.815 for CNAP, respectively. At corn harvest, both TCAP and CNAP were below detectable levels in soil and corn. For different consumer populations, hazard quotients ranged from 0.001 to 0.066 for TCAP and from 0.003 to 0.568 for CNAP - both well below 100%. CONCLUSION This study indicates that TCAP and CNAP applied by spray or drip irrigation are safe for long-term risk of human intake and also provides guidance for the use of both insecticides in agricultural production to control corn pests, especially in arid and semi-arid areas. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Xianjia Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Zheng Sun
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Tiantian Yan
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, China
| | - Yuan Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Xue Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Miaojiao Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Yigang Lin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Zhixiang Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Hanhong Xu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
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10
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Park M, Kim H, Kim M, Im MH. Reduction in residual cyantraniliprole levels in spinach after various washing and blanching methods. Front Nutr 2022; 9:948671. [PMID: 35967805 PMCID: PMC9370550 DOI: 10.3389/fnut.2022.948671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 07/04/2022] [Indexed: 11/13/2022] Open
Abstract
Pesticides are used to protect crops from pests and diseases. However, as many pesticides are toxic to humans, it is necessary to assess methods that can remove pesticide residues from agricultural products before human consumption. Spinach is consumed immediately after a relatively simple washing and heating process in the Republic of Korea. Cyantraniliprole is used as a systemic insecticide during spinach cultivation, which means it might remain in the crop after processing. Consequently, it is important to assess whether residues can be reduced to levels that are harmless to the human body after processing. This study investigated lowering the residual cyantraniliprole levels in spinach after washing and blanching. The amount of cyantraniliprole residue in the spinach samples sprayed with cyantraniliprole during cultivation was analyzed using ultrahigh-performance liquid chromatography-tandem mass spectrometry (UHPLC–MS/MS). The time of each washing and blanching method was set at 1, 3, and 5 min. The residual levels of cyantraniliprole decreased by 15.1–54.6% and 60.1–93.5% based on the washing and blanching methods employed. The most effective washing method to lower residual cyantraniliprole levels was steeping with a neutral detergent, resulting in cyantraniliprole reduction by 42.9–54.6%. When spinach was blanched after steeping washing with a neutral detergent, the largest removal rates of 77.9 and 91.2% were observed after 1 and 3 min of blanching, respectively. Blanching for 5 min after steeping and running washing exhibited the highest reduction rate of 93.5%. Therefore, a considerable amount of cyantraniliprole residue in spinach could be removed by washing or blanching. Based on the results of this study, blanching after steeping washing can be implemented as an effective method of lowering pesticide concentrations in spinach and other crops, thereby reducing their potential toxicity to humans upon consumption.
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Affiliation(s)
- Minsoo Park
- Department of Food Engineering, Daegu University, Gyenogsan, South Korea
| | - Hyeonjun Kim
- Department of Food Engineering, Daegu University, Gyenogsan, South Korea
| | - Myungheon Kim
- Department of Food Engineering, Daegu University, Gyenogsan, South Korea
| | - Moo-Hyeog Im
- Department of Food Engineering, Daegu University, Gyenogsan, South Korea
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11
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Oliveira C, Orozco-Restrepo SM, Alves AC, Pinto BS, Miranda MS, Barbosa MH, Picanço MC, Pereira EJ. Seed treatment for managing fall armyworm as a defoliator and cutworm on maize: plant protection, residuality, and the insect life history. Pest Manag Sci 2022; 78:1240-1250. [PMID: 34850531 DOI: 10.1002/ps.6741] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 11/21/2021] [Accepted: 12/01/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND The highly polyphagous and invasive fall armyworm (FAW, Spodoptera frugiperda) can feed on different plant parts of host crops, damaging whorls and stalks in early maize growth stages. Systemic insecticide seed treatment (IST) could minimize this damage, although the residual efficacy may vary with the plant tissue damaged. Using damage rating scales and artificial infestation in controlled conditions, we determined the potential of IST against FAW attacking maize whorl leaves or the stalk base. RESULTS Chlorantraniliprole, cyantraniliprole, or thiodicarb + imidacloprid IST similarly killed > 80% FAWs for 1 or 2 weeks after plant emergence depending on the plant tissue attacked. The residual efficacy (i.e. time after plant emergence sustaining > 80% larval mortality) lasted from the first to the eleventh day (VE-V3 maize growth stages), while for cutworm on the maize stalk base, it lasted 3-7 days after plant emergence (V1-V2 stages). In terms of damage, the ISTs lasted 15 days after emergence (V4 stage) for FAW on whorl leaves and 10 days (V3 stage) for FAW feeding on the stalk base. The larvae surviving on the seed-treated plants underwent sublethal effects in growth and development, reducing insect fitness. CONCLUSION Diamide or carbamate + neonicotinoid seed treatments kill FAW larvae on maize whorls or stalks in favorable edaphoclimatic and insecticide-susceptibility conditions. The cumulative impacts of systemic IST on aboveground insect pests go beyond mortality. The ISTs studied can be valuable against FAW in maize, for instance, to help protect varieties that may not express sufficient insect resistance in maize early growth stages.
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Affiliation(s)
- Camila Oliveira
- Department of Entomology, Universidade Federal de Viçosa, Viçosa, Brazil
- Bioagro, National Institute of Science and Technology in Plant-Pest Interactions, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Silvana M Orozco-Restrepo
- Department of Entomology, Universidade Federal de Viçosa, Viçosa, Brazil
- Bioagro, National Institute of Science and Technology in Plant-Pest Interactions, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Antônio Cl Alves
- Department of Plant Science, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Braullio S Pinto
- Department of Entomology, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Morgana S Miranda
- Department of Entomology, Universidade Federal de Viçosa, Viçosa, Brazil
- Bioagro, National Institute of Science and Technology in Plant-Pest Interactions, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Márcio Hp Barbosa
- Department of Plant Science, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Marcelo C Picanço
- Department of Entomology, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Eliseu Jg Pereira
- Department of Entomology, Universidade Federal de Viçosa, Viçosa, Brazil
- Bioagro, National Institute of Science and Technology in Plant-Pest Interactions, Universidade Federal de Viçosa, Viçosa, Brazil
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12
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Dunn TP'S, Champagne DE, Riley DG, Smith H, Bennett JE. A Target Site Mutation Associated With Diamide Insecticide Resistance in the Diamondback Moth Plutella xylostella (Lepidoptera: Plutellidae) is Widespread in South Georgia and Florida Populations. J Econ Entomol 2022; 115:289-296. [PMID: 34850042 DOI: 10.1093/jee/toab223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Indexed: 06/13/2023]
Abstract
Laboratory colonies of diamondback moth (DBM) larvae were established from larvae collected from four sites in Georgia and Florida where diamide, specifically chlorantraniliprole, insecticide resistance was recently documented. Based on dose-response experiments, these colonies exhibited 109- to 4,298-fold resistance to chlorantraniliprole, compared to a commercially available susceptible control colony. Colonies exhibited 50- to 107-fold resistance to another diamide, cyantraniliprole, based on similar dose-response experiments. All colonies were screened for the presence of four known mutations in the ryanodine receptor (RyR), the target of diamide insecticides, previously associated with resistance in Asian DBM populations. One mutation, G4946E, was identified in colonies from all four field sites, but not the susceptible control colony. Three additional RyR target site mutations, E1338D, Q4594L, and I4790M, were not identified in any of the screened samples. The estimated allele frequency of the G4946E mutation in these colonies ranged from 32 to 90%. These data are consistent with recently reported chlorantraniliprole control failures in Georgia and Florida. It is likely that the G4946E mutation is currently an important contributing factor to chlorantraniliprole resistance in Georgia and Florida DBM populations.
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Affiliation(s)
- Thomas P 'Sam' Dunn
- Department of Entomology, University of Georgia, 413 Biological Sciences, 120 Cedar Street, Athens, GA 30602-2603, USA
| | - Donald E Champagne
- Department of Entomology, University of Georgia, 413 Biological Sciences, 120 Cedar Street, Athens, GA 30602-2603, USA
| | - David G Riley
- Department of Entomology, University of Georgia Tifton Campus, Building 4603, 110 Research Way, Tifton, GA 31794, USA
| | - Hugh Smith
- Gulf Coast Research and Education Center, 14625 County Road 672, Wimauma, FL 33598, USA
| | - John E Bennett
- Department of Entomology, University of Georgia Tifton Campus, Building 4603, 110 Research Way, Tifton, GA 31794, USA
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13
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Li J, Liu J, Chi B, Chen P, Liu Y. 20E and MAPK signal pathway involved in the effect of reproduction caused by cyantraniliprole in Bactrocera dorsalis Hendel (Diptera: Tephritidae). Pest Manag Sci 2022; 78:63-72. [PMID: 34418274 DOI: 10.1002/ps.6607] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 08/21/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND It is a common phenomenon that insecticides affect insect reproduction and insect hormones. After cyantraniliprole treatment, the egg production and remating behavior of female Bactrocera dorsalis were affected, a phenomenon of 'hormesis' appeared, but the change at the molecular level was unknown. Therefore, we investigated the fertility, insect hormone titers and transcription levels and used RNAi to prove the function of genes, to explore the molecular mechanism of cyantraniliprole causing reproductive changes in female B. dorsalis. RESULTS LC20 treatment promoted egg production, while LC50 treatment inhibited it. Both high and low concentrations inhibited female ovaries' development and reduced the length of the ovarian tubes. Among insect hormones, only the titer of 20-hydroxyecdysone (20E) changed significantly. According to the KEGG pathway enrichment analysis of RNA-seq, there are significant differences in insect hormone synthesis and MAPK signal pathways between treatments. Furthermore, 20E biosynthetic genes, BdVgs and BdVgR were all down-regulated, and multiple MAPK signaling pathway genes were up-regulated. Based on qRT-PCR, the expression of BdCyp307A1, BdCyp302A1, BdMEKK4 and BdMAP2K6 within 1-11 days after treatment were consistent with the change of 20E titer. The BdVg1 and BdVg2 in LC50 were still suppressed, while the LC20 returned to normal in 9-11 days. RNAi indicated that BdMEKK4 and BdMAP2K6 participated in the transcriptional regulation of BdCyp307A1 and BdCyp302A1, then affected the levels of BdVgs. CONCLUSION Cyantraniliprole affected 20E through MAPK signal pathway, causing many genes to be down-regulated during the early period but up-regulated during the late period, ultimately affecting the reproduction of B. dorsalis. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Jianying Li
- Department of Entomology, College of Plant Protection, Shandong Agricultural University, Tai'an, China
| | - Jin Liu
- Shandong Agriculture and Engineering University, Jinan, China
| | - Baojie Chi
- Shandong Agriculture and Engineering University, Jinan, China
| | - Peng Chen
- Department of Entomology, College of Plant Protection, Shandong Agricultural University, Tai'an, China
| | - Yongjie Liu
- Department of Entomology, College of Plant Protection, Shandong Agricultural University, Tai'an, China
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14
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Guo L, Li C, Coupland G, Liang P, Chu D. Up-regulation of calmodulin involved in the stress response to cyantraniliprole in the whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae). Insect Sci 2021; 28:1745-1755. [PMID: 33200870 DOI: 10.1111/1744-7917.12887] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/26/2020] [Accepted: 11/03/2020] [Indexed: 06/11/2023]
Abstract
Cyantraniliprole is the first diamide insecticide to have cross-spectrum activity against a broad range of insect orders. The insecticide, like other diamides, selectively acts on ryanodine receptor, destroys Ca2+ homeostasis, and ultimately causes insect death. Although expression regulations of genes associated with calcium signaling pathways are known to be involved in the response to diamides, little is known regarding the function of calmodulin (CaM), a typical Ca2+ sensor central in regulating Ca2+ homeostasis, in the stress response of insects to the insecticide. In this study, we cloned and identified the full-length complementary DNA of CaM in the whitefly, Bemisia tabaci (Gennadius), named BtCaM. Quantitative real-time reverse transcription polymerase chain reaction-based analyses showed that the messenger RNA level of BtCaM was rapidly induced from 1.51- to 2.43-fold by cyantraniliprole during 24 h. Knockdown of BtCaM by RNA interference increased the toxicity of cyantraniliprole in whiteflies by 42.85%. In contrast, BtCaM expression in Sf9 cells significantly increased the cells' tolerance to cyantraniliprole as much as 2.91-fold. In addition, the expression of BtCaM in Sf9 cells suppressed the rapid increase of intracellular Ca2+ after exposure to cyantraniliprole, and the maximum amplitude in the Sf9-BtCaM cells was only 34.9% of that in control cells (Sf9-PIZ/V5). These results demonstrate that overexpression of BtCaM is involved in the stress response of B. tabaci to cyantraniliprole through regulation of Ca2+ concentration. As CaM is one of the most evolutionarily conserved Ca2+ sensors in insects, outcomes of this study may provide the first details of a universal insect response to diamide insecticides.
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Affiliation(s)
- Lei Guo
- Key Lab of Integrated Crop Pest Management of Shandong Province, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, Shangdong, 266109, China
| | - Changyou Li
- Key Lab of Integrated Crop Pest Management of Shandong Province, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, Shangdong, 266109, China
| | - Grey Coupland
- Harry Butler Institute, Murdoch University, Murdoch, WA, 6150, Australia
| | - Pei Liang
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing, 100193, China
| | - Dong Chu
- Key Lab of Integrated Crop Pest Management of Shandong Province, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, Shangdong, 266109, China
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15
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Anastassiadou M, Bellisai G, Bernasconi G, Brancato A, Carrasco Cabrera L, Ferreira L, Giner G, Greco L, Jarrah S, Kazocina A, Leuschner R, Magrans JO, Miron I, Nave S, Pedersen R, Reich H, Ruocco S, Santos M, Scarlato AP, Theobald A, Vagenende B, Verani A. Modification of the existing maximum residue levels for cyantraniliprole in olives. EFSA J 2021; 19:e06805. [PMID: 34386099 PMCID: PMC8340062 DOI: 10.2903/j.efsa.2021.6805] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
In accordance with Article 6 of Regulation (EC) No 396/2005, the applicant FMC International Switzerland Sarl (FISSarl) submitted a request to the competent national authority in France to modify the existing maximum residue level (MRL) for the active substance cyantraniliprole in table olives and olives for oil production. The data submitted in support of the request were found to be sufficient to derive MRL proposals for the intended uses of cyantraniliprole in olives. Adequate analytical methods for enforcement are available to control the residues of cyantraniliprole in the commodities under consideration at the validated limit of quantification (LOQ) of 0.01 mg/kg. Based on the risk assessment results, EFSA concluded that the intake of residues resulting from the uses of cyantraniliprole according to the reported agricultural practices is unlikely to present a risk to consumer health.
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16
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Zeng X, Pan Y, Song J, Li J, Lv Y, Gao X, Tian F, Peng T, Xu H, Shang Q. Resistance Risk Assessment of the Ryanoid Anthranilic Diamide Insecticide Cyantraniliprole in Aphis gossypii Glover. J Agric Food Chem 2021; 69:5849-5857. [PMID: 34014075 DOI: 10.1021/acs.jafc.1c00922] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Cyantraniliprole targets the ryanodine receptor and shows cross-spectrum activity against a broad range of chewing and sucking pests. In this study, a cyantraniliprole-resistant cotton aphid strain (CyR) developed resistance 17.30-fold higher than that of a susceptible (SS) strain. Bioassay results indicated that CyR developed increased cross-resistance to cyfluthrin, α-cypermethrin, imidacloprid, and acephate. In CyR, piperonyl butoxide synergistically increased the toxicity of cyantraniliprole, α-cypermethrin, and cyfluthrin. The cytochrome P450 activities in the CyR strain were significantly higher than those in the SS strain. The mRNA expression of CYP6CY7, CYP6CY12, CYP6CY21, CYP6CZ1, CYP6DA1, and CYP6DC1 in the CYP3 clade, and CYP380C6, CYP380C12, CYP380C44, CYP4CJ1, and CYP4CJ5 in the CYP4 clade, was significantly higher in CyR than in SS. The depletion of the most abundant CYP380C6 transcript by RNAi also significantly increased the sensitivity of CyR to cyantraniliprole. Transgenic expression of CYP380C6, CYP6CY7, CYP6CY21, and CYP4CJ1 in Drosophila melanogaster suggested that the expression of CYP380C6 and CYP4CJ1 was sufficient to confer cyantraniliprole resistance, with CYP380C6 being the most effective, and that CYP380C6, CYP6CY7, and CYP6CY21 were related to α-cypermethrin cross-resistance. These results indicate the involvement of P450 genes in cyantraniliprole resistance and pyrethroid cross-resistance and provide an overall view of the metabolic factors involved in resistance development.
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Affiliation(s)
- Xiaochun Zeng
- College of Plant Science, Jilin University, Changchun 130062, P.R. China
| | - Yiou Pan
- College of Plant Science, Jilin University, Changchun 130062, P.R. China
| | - Jiaobao Song
- College of Plant Science, Jilin University, Changchun 130062, P.R. China
| | - Jianyi Li
- College of Plant Science, Jilin University, Changchun 130062, P.R. China
| | - Yuntong Lv
- College of Plant Science, Jilin University, Changchun 130062, P.R. China
| | - Xiwu Gao
- Department of Entomology, China Agricultural University, Beijing 100193, P.R. China
| | - Fayi Tian
- College of Plant Science, Jilin University, Changchun 130062, P.R. China
| | - Tianfei Peng
- College of Plant Science, Jilin University, Changchun 130062, P.R. China
| | - Hongfei Xu
- College of Plant Science, Jilin University, Changchun 130062, P.R. China
| | - Qingli Shang
- College of Plant Science, Jilin University, Changchun 130062, P.R. China
- School of Agricultural Science, Zhengzhou University, Zhengzhou 450001, P.R. China
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17
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Zheng H, Xie W, Fu B, Xiao S, Tan X, Ji Y, Cheng J, Wang R, Liu B, Yang X, Guo Z, Wang S, Wu Q, Xu B, Zhou X, Zhang Y. Annual analysis of field-evolved insecticide resistance in Bemisia tabaci across China. Pest Manag Sci 2021; 77:2990-3001. [PMID: 33624368 DOI: 10.1002/ps.6338] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/11/2021] [Accepted: 02/24/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Over recent decades, many efficacious insecticides have been applied for control of Bemisia tabaci, one of the most notorious insect pests worldwide. Field-evolved insecticide resistance in B. tabaci has developed globally, but remains poorly understood in China. RESULTS In this study, a total of 30 field samples of the whitefly Bemisia tabaci from eight provinces of China were collected in 2015 to 2018. Twenty-four of the populations were identified as Mediterranean, 'Q' type (MED), three were Middle East-Asia Minor 1, 'B' type (MEAM1), and three were mixtures of MED/ MEAM1. After identifying whether they belong to MED or MEAM1, the selected individuals were used in bioassays assessing insecticide resistance to abamectin, thiamethoxam, spirotetramat, cyantraniliprole, and pyriproxyfen. Our results showed that all populations in the eight regions had little or no resistance to abamectin; abamectin resistance was highest in the Hunan (Changsha) and Hubei (Wuhan) regions and was lowest in the island region of Hainan (Sanya). The resistance of B. tabaci to spirotetramat, cyantraniliprole, and pyriproxyfen increased each year. The resistance to thiamethoxam remained low because of the high LC50 value for the laboratory strain. CONCLUSION These findings suggest that a rotation system using efficacious B. tabaci insecticides with differing mode of actions ought to be implemented for sustainable control to reduce the potential of resistance development. This study provides important data to support the integrated pest management and insecticide resistance management of B. tabaci in China. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Huixin Zheng
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Plant Protection of Hunan Agricultural University, Changsha, China
| | - Wen Xie
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Buli Fu
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
- The Ministry of Agriculture and Rural Affairs Key Laboratory of Integrated Pest Management of Tropical Crops, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Si Xiao
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xing Tan
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yao Ji
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jiaxu Cheng
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ran Wang
- Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Baiming Liu
- Institute of Plant Protection, Tianjin Academy of Agricultural Sciences, Tianjin, China
| | - Xin Yang
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhaojiang Guo
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shaoli Wang
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Qingjun Wu
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Baoyun Xu
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiaomao Zhou
- Hunan Agricultural Biotechnology Research Institute, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Youjun Zhang
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
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18
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Maluta NKP, Lopes JRS, Fiallo-Olivé E, Navas-Castillo J, Lourenção AL. Foliar Spraying of Tomato Plants with Systemic Insecticides: Effects on Feeding Behavior, Mortality and Oviposition of Bemisia tabaci (Hemiptera: Aleyrodidae) and Inoculation Efficiency of Tomato Chlorosis Virus. Insects 2020; 11:insects11090559. [PMID: 32842573 PMCID: PMC7565682 DOI: 10.3390/insects11090559] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/18/2020] [Accepted: 08/20/2020] [Indexed: 01/22/2023]
Abstract
Simple Summary The whitefly Bemisia tabaci (Hemiptera: Aleyrodidae) causes serious losses to vegetable, ornamental and fiber crops, including tomato plants, mainly as a vector of economically important viruses. Among the most important viruses affecting tomato is the tomato chlorosis virus (ToCV) (Closteroviridae: Crinivirus), which is semi-persistently transmitted by whiteflies. Effective management of this pest is crucial to reduce the spread of vector-borne diseases and to reduce crop damage and losses. In this study we evaluated the effect of systemic insecticides (cyantraniliprole, acetamiprid and flupyradifurone) on the feeding behavior, mortality and oviposition of B. tabaci MEAM1 and their ability to interfere with the inoculation of ToCV in tomato plants. Our findings indicate that systemic insecticides cause high mortality when compared to untreated plants. Also, we found that flupyradifurone affects stylet activities of B. tabaci and significantly reduce phloem ingestion, a behavior that is closely linked to the transmission of ToCV. Overall, our findings indicate that flupyradifurone may contribute to management of this pest and ToCV in tomato crops. Abstract Tomato chlorosis virus (ToCV) is a phloem-limited crinivirus transmitted by whiteflies and seriously affects tomato crops worldwide. As with most vector-borne viral diseases, no cure is available, and the virus is managed primarily by the control of the vector. This study determined the effects of the foliar spraying with the insecticides, acetamiprid, flupyradifurone and cyantraniliprole, on the feeding behavior, mortality, oviposition and transmission efficiency of ToCV by B. tabaci MEAM1 in tomato plants. To evaluate mortality, oviposition and ToCV transmission in greenhouse conditions, viruliferous whiteflies were released on insecticide-treated plants at different time points (3, 24 and 72 h; 7 and 14 days) after spraying. Insect mortality was higher on plants treated with insecticides; however, only cyantraniliprole and flupyradifurone differed from them in all time points. The electrical penetration graph (DC-EPG) technique was used to monitor stylet activities of viruliferous B. tabaci in tomato plants 72 h after insecticide application. Only flupyradifurone affected the stylet activities of B. tabaci, reducing the number and duration of intracellular punctures (pd) and ingestion of phloem sap (E2), a behavior that possibly resulted in the lower percentage of ToCV transmission in this treatment (0–60%) in relation to the control treatment (60–90%) over the periods evaluated. Our results indicate that flupyradifurone may contribute to management of this pest and ToCV in tomato crops.
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Affiliation(s)
- Nathalie Kristine Prado Maluta
- Agronomic Institute (IAC), Centro de Fitossanidade, 13020-902 Campinas, SP, Brazil;
- Correspondence: ; Tel.: +55-19-3429-4199
| | - João Roberto Spotti Lopes
- Department of Entomology and Acarology, ESALQ, University of São Paulo, 13418-900 Piracicaba, SP, Brazil;
| | - Elvira Fiallo-Olivé
- Instituto de Hortofruticultura Subtropical y Mediterránea ‘La Mayora’, Universidad de Málaga - Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), 29750 Algarrobo-Costa, Málaga, Spain; (E.F.-O.); (J.N.-C.)
| | - Jesús Navas-Castillo
- Instituto de Hortofruticultura Subtropical y Mediterránea ‘La Mayora’, Universidad de Málaga - Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), 29750 Algarrobo-Costa, Málaga, Spain; (E.F.-O.); (J.N.-C.)
| | - André Luiz Lourenção
- Agronomic Institute (IAC), Centro de Fitossanidade, 13020-902 Campinas, SP, Brazil;
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19
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Kumar N, Gupta S. Persistence and degradation of cyantraniliprole in soil under the influence of varying light sources, temperatures, moisture regimes and carbon dioxide levels. J Environ Sci Health B 2020; 55:1032-1040. [PMID: 32811281 DOI: 10.1080/03601234.2020.1808416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In the present work, persistence and degradation of cyantraniliprole, a leading anthranilic diamide pesticide against sucking insect pests, in inceptisol soil has been studied. Effect of various factors like light source (UV-light, sunlight and dark), temperature (5, 25 and 37 °C), moisture regime (dry, field capacity and submerged) and carbon dioxide level (415 and 625 µL L-1) on dissipation was also evaluated. Formation of IN-J9Z38, a major metabolite of cyantraniliprole, was monitored in different treatments. Samples were processed as per QuEChERS method and analysis was done by HPLC-PDA. Matrix matched calibration curve, prepared in the range 0.001-10 mg L-1, indicated very good linearity (R2 > 0.99) and sensitivity (instrument limit of detection 0.001 mg L-1). Cyantraniliprole residues dissipated with time and 47.7%-98.8% dissipation was recorded on 90th day in different treatments. Minimum half-life of cyantraniliprole, i.e. 8.7 days was recorded at elevated CO2 level (625 ± 5 µL L-1) while its maximum half-life of 86.6 days was recorded at 5 °C. Metabolite IN-J9Z38 started forming from zero-day and reached the maximum on 15th to 60th day. Microbial biomass carbon, as an index of microbial activity of soil, correlated well with the degradation of cyantraniliprole.
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Affiliation(s)
- Niranjan Kumar
- Division of Agricultural Chemicals, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Suman Gupta
- Division of Agricultural Chemicals, ICAR-Indian Agricultural Research Institute, New Delhi, India
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20
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Fukada M, Itagaki Y, Nagayoshi A, Sonoda S. Field survey of ryanodine receptor mutations (G4946E and I4790K) and their effects on biotic performance in the diamondback moth. J Pestic Sci 2020; 45:114-118. [PMID: 32508518 PMCID: PMC7251203 DOI: 10.1584/jpestics.d20-011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 04/01/2020] [Indexed: 06/02/2023]
Abstract
This study examined changes in the proportions of ryanodine receptor mutations (G4946E and I4790K) for Plutella xylostella populations in the field. Results show that the proportion of G4946E decreased during the survey years without diamide application and that insects with I4790K were observed less frequently during the survey period. This study also examined the biotic performances of diamide-resistant P. xylostella strains. The results show that the diamide-resistant strains exhibited hatchability, larval development, and fecundity equivalent to those of diamide-susceptible strains.
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Affiliation(s)
- Megumi Fukada
- School of Agriculture, Utsunomiya University, Utsunomiya, Tochigi 321–8505, Japan
| | - Yuki Itagaki
- School of Agriculture, Utsunomiya University, Utsunomiya, Tochigi 321–8505, Japan
| | - Atsuko Nagayoshi
- School of Agriculture, Utsunomiya University, Utsunomiya, Tochigi 321–8505, Japan
| | - Shoji Sonoda
- School of Agriculture, Utsunomiya University, Utsunomiya, Tochigi 321–8505, Japan
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21
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Anastassiadou M, Brancato A, Carrasco Cabrera L, Greco L, Jarrah S, Kazocina A, Leuschner R, Magrans JO, Miron I, Nave S, Pedersen R, Reich H, Rojas A, Sacchi A, Santos M, Stanek A, Theobald A, Vagenende B, Verani A. Modification of the existing maximum residue levels for cyantraniliprole in Chinese cabbages, blackberries and raspberries. EFSA J 2019; 17:e05903. [PMID: 32626187 PMCID: PMC7008791 DOI: 10.2903/j.efsa.2019.5903] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
In accordance with Article 53 of Regulation (EC) 1107/2009, the United Kingdom granted two 120-day emergency authorisations for the use of plant protection products containing the active substance cyantraniliprole in Chinese cabbages, raspberries and blackberries. The applicants (Agriculture & Horticulture Development Board (AHDB)) and FMC Agro Ltd) requested the setting of temporary maximum residue levels (MRLs) for cyantraniliprole in Chinese cabbages, raspberries and blackberries. The United Kingdom, as evaluating Member State (EMS), summarised the data provided by the applicants in two evaluation reports which were submitted to the European Commission and forwarded to EFSA. Adequate analytical methods for enforcement are available to control the residues of cyantraniliprole on the commodities under consideration at the validated limit of quantification (LOQ) of 0.01 mg/kg. Sufficient residue trials were submitted to calculate MRL proposals for the crops under assessment. Based on the risk assessment results, EFSA concluded that the long-term intake of residues resulting from the use of parent cyantraniliprole in crops under assessment according to the reported emergency agricultural practice is unlikely to present a risk to consumer health. Due to data gaps related to the toxicological profile of degradation products generated during processing, the risk assessment for processed products could not be finalised.
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22
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Guo L, Li C, Liang P, Chu D. Cloning and Functional Analysis of Two Ca 2+-Binding Proteins (CaBPs) in Response to Cyantraniliprole Exposure in Bemisia tabaci (Hemiptera: Aleyrodidae). J Agric Food Chem 2019; 67:11035-11043. [PMID: 31517486 DOI: 10.1021/acs.jafc.9b04028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Ca2+-binding proteins (CaBPs) are widely distributed as Ca2+ sensor relay proteins that regulate various cellular processes, including Ca2+ homeostasis. Diamide insecticides such as cyantraniliprole kill insects by disrupting the Ca2+ homeostasis in muscle cells. However, less attention has been paid to the roles of CaBPs in response to insecticides. In this study, two CaBP genes (BtCaBP1 and BtCaBP2) were identified in the whitefly, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae), and their functions in response to cyantraniliprole were investigated. After expression of BtCaBP1 and BtCaBP2 in vitro, the results of Ca2+ imaging and cytotoxicity assay revealed that the overexpression of each of the BtCaBPs stabilized Ca2+ concentration in the cytoplasm after exposure to cyantraniliprole and decreased the toxicity of cyantraniliprole against Sf9 cells. However, the knockdown of BtCaBP1 or BtCaBP2 in vivo significantly increased the toxicity of cyantraniliprole to B. tabaci. Taken together, these results provide evidence that BtCaBP1 and BtCaBP2 play a role in response to cyantraniliprole exposure through stabilization of Ca2+ concentration in whiteflies.
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Affiliation(s)
- Lei Guo
- Key Lab of Integrated Crop Pest Management of Shandong Province, College of Plant Health and Medicine , Qingdao Agricultural University , Qingdao 266109 , P. R. China
| | - Changyou Li
- Key Lab of Integrated Crop Pest Management of Shandong Province, College of Plant Health and Medicine , Qingdao Agricultural University , Qingdao 266109 , P. R. China
| | - Pei Liang
- Department of Entomology, College of Plant Protection , China Agricultural University , Beijing 100193 , P. R. China
| | - Dong Chu
- Key Lab of Integrated Crop Pest Management of Shandong Province, College of Plant Health and Medicine , Qingdao Agricultural University , Qingdao 266109 , P. R. China
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Yang H, Zhou C, Yang XB, Long GY, Jin DC. Effects of Insecticide Stress on Expression of NlABCG Transporter Gene in the Brown Planthopper, Nilaparvata lugens. Insects 2019; 10:insects10100334. [PMID: 31597380 PMCID: PMC6836012 DOI: 10.3390/insects10100334] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 09/25/2019] [Accepted: 09/30/2019] [Indexed: 12/12/2022]
Abstract
The brown planthopper (BPH), Nilaparvata lugens, is an important pest of rice that severely affects production. Insecticides are an important means of controlling BPH, but their long-term use has led to resistance. To provide insight into BPH responses to insecticide stress, we determined the expression levels of BPH ABCG transporter genes under treatment with thiamethoxam, abamectin, and cyantraniliprole at LC10, LC25, LC50, and LC90. We cloned 13 BPH ABCG transporters, named NlABCG1 to NlABCG13. Conservative domain analysis showed that all 13 transporters have one nucleotide binding domain and one transmembrane domain, typical of semi-molecular transporters. Real-time quantitative PCR showed that thiamethoxam, abamectin, and cyantraniliprole stress increased the expression of some NlABCG transporters gene in BPH. However, after treatment with thiamethoxam at LC25 and abamectin at LC10, there was no significant upregulation of NlABCG. These results indicate that the expression of NlABCG varies in response to stress from different insecticides. These findings provide baseline information for further understanding of the molecular mechanisms of insecticide resistance in BPH.
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Affiliation(s)
- Hong Yang
- Provincial Key Laboratory for Agricultural Pest Management of Mountainous Regions, Institute of Entomology, Guizhou University, Guiyang 550025, China.
- College of Tobacco Science, Guizhou University, Guiyang 550025, China.
| | - Cao Zhou
- Provincial Key Laboratory for Agricultural Pest Management of Mountainous Regions, Institute of Entomology, Guizhou University, Guiyang 550025, China.
| | - Xi-Bin Yang
- Provincial Key Laboratory for Agricultural Pest Management of Mountainous Regions, Institute of Entomology, Guizhou University, Guiyang 550025, China.
| | - Gui-Yun Long
- Provincial Key Laboratory for Agricultural Pest Management of Mountainous Regions, Institute of Entomology, Guizhou University, Guiyang 550025, China.
| | - Dao-Chao Jin
- Provincial Key Laboratory for Agricultural Pest Management of Mountainous Regions, Institute of Entomology, Guizhou University, Guiyang 550025, China.
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Bolzan A, Padovez FE, Nascimento AR, Kaiser IS, Lira EC, Amaral FS, Kanno RH, Malaquias JB, Omoto C. Selection and characterization of the inheritance of resistance of Spodoptera frugiperda (Lepidoptera: Noctuidae) to chlorantraniliprole and cross-resistance to other diamide insecticides. Pest Manag Sci 2019; 75:2682-2689. [PMID: 30761724 DOI: 10.1002/ps.5376] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 01/31/2019] [Accepted: 02/10/2019] [Indexed: 05/26/2023]
Abstract
BACKGROUND Understanding the genetic basis of insect resistance to insecticides can help to implement insecticide resistance management (IRM) strategies. In this study, we selected a strain of Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) resistant to chlorantraniliprole using the F2 screen method, characterized the inheritance of resistance and evaluated patterns of cross-resistance to other diamide insecticides. RESULTS The chlorantraniliprole-resistant strain (Chlorant-R) was selected from a field-collected population with an estimated allele frequency of 0.1316. The estimated median lethal concentration (LC50 ) values were 0.011 and 2.610 µg a.i. cm-2 for the susceptible (Sus) and Chlorant-R strains, respectively, resulting in a resistance ratio (RR) of 237-fold. The LC50 values of the reciprocal crosses were 0.155 and 0.164 µg a.i. cm-2 , indicating that resistance is autosomally inherited. Resistance was characterized as incompletely recessive and monogenic at concentrations close to the recommended field rates of chlorantraniliprole. Survival of the resistant strain and heterozygous larvae in maize plants treated at the field rate was ∼ 60 (similar to the susceptible strain on untreated maize) and 15%, respectively. The Chlorant-R strain showed low cross-resistance to cyantraniliprole (RR ∼ 27-fold) and very high cross-resistance to flubendiamide (RR > 42 000-fold). CONCLUSIONS The frequency of chlorantraniliprole resistance allele was moderately high in a field-collected population of S. frugiperda. The inheritance of chlorantraniliprole resistance was characterized as autosomal, incompletely recessive and monogenic. S. frugiperda showed cross-resistance to other diamide insecticides. These results provide essential information for the implementation of IRM programs to preserve the useful life of diamide insecticides for controlling S. frugiperda in Brazil. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Anderson Bolzan
- Departament of Entomology and Acarology, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), São Paulo, Brazil
| | - Fernando Eo Padovez
- Departament of Entomology and Acarology, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), São Paulo, Brazil
| | - Antonio Rb Nascimento
- Departament of Entomology and Acarology, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), São Paulo, Brazil
| | - Ingrid S Kaiser
- Departament of Entomology and Acarology, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), São Paulo, Brazil
| | - Ewerton C Lira
- Departament of Entomology and Acarology, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), São Paulo, Brazil
| | - Fernando Sa Amaral
- Departament of Entomology and Acarology, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), São Paulo, Brazil
| | - Rubens H Kanno
- Departament of Entomology and Acarology, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), São Paulo, Brazil
| | - José B Malaquias
- Departament of Entomology and Acarology, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), São Paulo, Brazil
| | - Celso Omoto
- Departament of Entomology and Acarology, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), São Paulo, Brazil
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Wang Z, Dai P, Yang X, Ruan CC, Biondi A, Desneux N, Zang LS. Selectivity of novel and traditional insecticides used for management of whiteflies on the parasitoid Encarsia formosa. Pest Manag Sci 2019; 75:2716-2724. [PMID: 30784200 DOI: 10.1002/ps.5380] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 01/29/2019] [Accepted: 02/11/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Encarsia formosa Gahan is the most important parasitoid exploited for the control of whitefly pests of vegetable crops. However, the non-target effects of recently developed insecticides for controlling whiteflies toward this biocontrol agent is little documented. Here we evaluated the susceptibility of E. formosa adults and juveniles to eight commonly used insecticides against whiteflies. RESULTS Residual toxicity tests on glass showed that E. formosa adults were susceptible (over 98% mortality after 6 h treated) to field concentrations of the tested neonicotinoids (imidacloprid, acetamiprid, nitenpyram and thiamethoxam), abamectin, cyantraniliprole, and sulfoxaflor at their field concentrations. Pyriproxyfen was harmless to both adult and pupae of E. formosa. A risk quotient analysis showed that toxicity of pyriproxyfen to E. formosa adults was the lowest, followed by acetamiprid and cyantraniliprole. In the leaf residues test, mortality of E. formosa adults under all insecticides decreased when the residue age increased. Interestingly, E. formosa experiencing contact with the residues of most insecticides, except pyriproxyfen and abamectin, parasitized significantly more hosts 5-days after treatment, suggesting a hormetic effect on parasitism. CONCLUSION The risk assessment of insecticides indicated that pyriproxyfen and cyantraniliprole were the least toxic to E. formosa. Our results suggest that the inclusion of the insecticides in sustainable integrated pest management programs of whiteflies should be carefully evaluated on a case-by-case basis. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Zhuo Wang
- Engineering Research Center of Natural Enemies, Institute of Biological Control, Jilin Agricultural University, Changchun, China
| | - Peng Dai
- Engineering Research Center of Natural Enemies, Institute of Biological Control, Jilin Agricultural University, Changchun, China
| | | | - Chang-Chun Ruan
- Engineering Research Center of Natural Enemies, Institute of Biological Control, Jilin Agricultural University, Changchun, China
| | - Antonio Biondi
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
| | - Nicolas Desneux
- INRA (French National Institute for Agricultural Research), Université Côte d'Azur, CNRS, UMR 1355-7254, Institut Sophia Agrobiotech, Sophia-Antipolis, France
| | - Lian-Sheng Zang
- Engineering Research Center of Natural Enemies, Institute of Biological Control, Jilin Agricultural University, Changchun, China
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26
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Zhang Z, Xu C, Ding J, Zhao Y, Lin J, Liu F, Mu W. Cyantraniliprole seed treatment efficiency against Agrotis ipsilon (Lepidoptera: Noctuidae) and residue concentrations in corn plants and soil. Pest Manag Sci 2019; 75:1464-1472. [PMID: 30450808 DOI: 10.1002/ps.5269] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 06/27/2018] [Accepted: 11/10/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND The black cutworm Agrotis ipsilon is the most destructive early season insect pest of corn. In this study, the control efficiency of cyantraniliprole seed treatment against A. ipsilon was evaluated, and the residual concentrations of cyantraniliprole and its metabolite J9Z38 in the stalks of corn seedlings and soil were investigated. RESULTS Plant pot experiments showed that A. ipsilon larval mortality was greater than 92% and that the percentage of corn seedlings damaged by A. ipsilon was less than 24% when corn seeds were treated with cyantraniliprole at 2 and 4 g AI kg-1 seed. Cyantraniliprole seed treatment at a dosage of 2 g AI kg-1 seed significantly reduced A. ipsilon infestation compared to chlorantraniliprole and clothianidin seed treatments in corn fields. Cyantraniliprole seed treatment resulted in more persistent control efficiency of A. ipsilon in spring than in summer. Cyantraniliprole and J9Z38 residues in corn stalks and soil degraded more slowly in the spring than in the summer. CONCLUSION Cyantraniliprole used as a seed treatment can protect corn plants from A. ipsilon infestations throughout the seedling stage. The high biological activity of cyantraniliprole was consistent with the residue levels of cyantraniliprole in the corn stalks and soil. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Zhengqun Zhang
- College of Plant Protection and College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China
| | - Chunmei Xu
- College of Plant Protection and College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China
| | - Jinfeng Ding
- College of Plant Protection and College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China
| | - Yunhe Zhao
- College of Plant Protection and College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China
| | - Jin Lin
- College of Plant Protection and College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China
| | - Feng Liu
- College of Plant Protection and College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China
| | - Wei Mu
- College of Plant Protection and College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China
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Brancato A, Brocca D, De Lentdecker C, Erdos Z, Ferreira L, Greco L, Jarrah S, Kardassi D, Leuschner R, Lythgo C, Medina P, Miron I, Molnar T, Nougadere A, Pedersen R, Reich H, Sacchi A, Santos M, Stanek A, Sturma J, Tarazona J, Theobald A, Vagenende B, Verani A, Villamar-Bouza L. Setting of a maximum residue level for cyantraniliprole in leeks. EFSA J 2018; 16:e05124. [PMID: 32625672 PMCID: PMC7009505 DOI: 10.2903/j.efsa.2018.5124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
In accordance with Article 53 of Regulation (EC) 1107/2009, the United Kingdom granted a 120-day emergency authorisation for the use of cyantraniliprole in leek. In order to accommodate for the new use, the Agriculture & Horticulture Development Board submitted an application to raise the existing maximum residue level (MRL) for the crop concerned. The United Kingdom, as evaluating Member State, summarised the data provided by the applicant in an evaluation report which was submitted to the European Commission and forwarded to EFSA. Sufficient residue trials are available to derive an MRL proposal of 0.6 mg/kg for leeks in accordance with the emergency authorised good agricultural practice (GAP). Adequate analytical methods for enforcement are available to control the residues of cyantraniliprole in the commodities under consideration. Based on the risk assessment results, EFSA concluded that intake of residues resulting from the use of cyantraniliprole according to the reported agricultural practice is unlikely to present a risk to consumer health.
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28
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Brancato A, Brocca D, De Lentdecker C, Erdos Z, Ferreira L, Greco L, Jarrah S, Kardassi D, Leuschner R, Lythgo C, Medina P, Miron I, Molnar T, Nougadere A, Pedersen R, Reich H, Sacchi A, Santos M, Stanek A, Sturma J, Tarazona J, Theobald A, Vagenende B, Verani A, Villamar-Bouza L. Setting of maximum residue levels for cyantraniliprole in raspberries and blackberries. EFSA J 2017; 15:e05061. [PMID: 32625353 PMCID: PMC7009876 DOI: 10.2903/j.efsa.2017.5061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In accordance with Article 53 of Regulation (EC) 1107/2009, the United Kingdom granted a 120‐day emergency authorisation for the use of cyantraniliprole in raspberries and blackberries. In order to accommodate for the new uses, the Agriculture & Horticulture Development Board submitted an application to raise the existing maximum residue level (MRL) for the crops concerned. The United Kingdom, as evaluating Member State, summarised the data provided by the applicant in an evaluation report which was submitted to the European Commission and forwarded to EFSA. Sufficient residue trials are available to derive an MRL proposal of 0.9 mg/kg for raspberries and blackberries grown under indoor/greenhouse conditions. For the NEU outdoor use on raspberries/blackberries, the available information was insufficient to derive an MRL proposal. Adequate analytical methods for enforcement are available to control the residues of cyantraniliprole in the commodities under consideration. Based on the risk assessment results, EFSA concluded that intake of residues resulting from the use of cyantraniliprole according to the reported agricultural practices (indoor/greenhouse use) is unlikely to present a risk to consumer health.
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29
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Wing KD. It takes a team: reflections on insecticide discoveries, toxicological problems and enjoying the unexpected. Pest Manag Sci 2017; 73:666-671. [PMID: 27146911 DOI: 10.1002/ps.4311] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 04/09/2016] [Accepted: 05/03/2016] [Indexed: 06/05/2023]
Abstract
Absorption/distribution/metabolism/excretion (ADME)-related studies are mandatory in agrochemical development/registration, but can also play a valuable role in the discovery process. In combination with target-site potency, bioavailability/ADME characteristics determine agrochemical bioactivity and selectivity, and these concerns can dictate the fate of a discovery lead area. Bioavailability/ADME research was critical to the eventual commercialization of three different insecticide chemistries examined in this paper. In one situation, improved systemicity in anthranilic diamides was required to expand pest spectrum. In another, ADME tools were needed to improve the selective toxicity and non-target safety of sodium channel blocker insecticides. Finally, differential ADME characteristics of two classes of hormone agonists dictated differential insecticidal activity, and were useful in optimizing the dibenzoylhydrazine ecdysone agonists. ADME discovery research will help companies to advance novel, efficacious and selective agrochemicals, but organizational patience and a desire to understand lead areas in depth are required. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Keith D Wing
- Keith D Wing Consulting, LLC, Wilmington, DE, USA
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30
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Selby TP, Lahm GP, Stevenson TM. A retrospective look at anthranilic diamide insecticides: discovery and lead optimization to chlorantraniliprole and cyantraniliprole. Pest Manag Sci 2017; 73:658-665. [PMID: 27146435 DOI: 10.1002/ps.4308] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 04/15/2016] [Accepted: 05/03/2016] [Indexed: 06/05/2023]
Abstract
Anthranilic diamides are an important commercial synthetic class of insecticides (IRAC Group 28) that bind to the ryanodine receptor with selective potency against insect versus mammalian forms of the receptor. The first commercialized diamide, chlorantraniliprole, has exceptional activity against lepidopteran pests. The second anthranilamide product, cyantraniliprole, has excellent cross-spectrum activity against a range of insect orders, including both lepidopteran and hemipteran pests. Here, a retrospective look is presented on the discovery of the class, along with chemistry highlights of the lead evolution to both products. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Thomas P Selby
- DuPont Crop Protection, Stine-Haskell Research Center, Newark, DE, USA
| | - George P Lahm
- DuPont Crop Protection, Stine-Haskell Research Center, Newark, DE, USA
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31
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Schmidt-Jeffris RA, Nault BA. Anthranilic Diamide Insecticides Delivered via Multiple Approaches to Control Vegetable Pests: A Case Study in Snap Bean. J Econ Entomol 2016; 109:2479-2488. [PMID: 27760786 DOI: 10.1093/jee/tow219] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Accepted: 09/11/2016] [Indexed: 06/06/2023]
Abstract
Many vegetable insect pests are managed using neonicotinoid and pyrethroid insecticides. Unfortunately, these insecticides are toxic to many bees and natural enemies and no longer control some pests that have developed resistance. Anthranilic diamide insecticides provide systemic control of many herbivorous arthropod pests, but exhibit low toxicity to beneficial arthropods and mammals, and may be a promising alternative to neonicotinoids and pyrethroids. Anthranilic diamides may be delivered to vegetable crops via seed, in-furrow, or foliar treatments; therefore, it would be desirable to identify which application method provides high levels of pest control while minimizing the amount of active ingredient. As a case study, chlorantraniliprole and cyantraniliprole applied via the methods listed above were evaluated for managing seedcorn maggot, Delia platura (Meigen) (Diptera: Anthomyiidae), and European corn borer, Ostrinia nubilalis (Hübner) (Lepidoptera: Crambidae), in snap bean. Chlorantraniliprole and cyantraniliprole delivered as seed and in-furrow treatments reduced D. platura damage to the same level as the standard neonicotinoid seed treatment. Both diamides applied via all three methods significantly reduced O. nubilalis damage, but only the foliar application provided similar control as the standard pyrethroid spray. Results from laboratory bioassays revealed that both diamides applied as seed and in-furrow treatments caused high O. nubilalis neonate mortality up to 44 d after application. While the diamides provided equivalent control of these pests as the neonicotinoid and pyrethroid standards when applied in the same manner, chlorantraniliprole delivered as a seed treatment showed the most promise for managing both pests.
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Affiliation(s)
| | - Brian A Nault
- Cornell University, New York State Agricultural Experiment Station, 630 W. North St., Geneva, NY 14456 (; )
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Silva JE, Assis CPO, Ribeiro LMS, Siqueira HAA. Field-Evolved Resistance and Cross-Resistance of Brazilian Tuta absoluta (Lepidoptera: Gelechiidae) Populations to Diamide Insecticides. J Econ Entomol 2016; 109:2190-2195. [PMID: 27427509 DOI: 10.1093/jee/tow161] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 06/20/2016] [Indexed: 06/06/2023]
Abstract
Tuta absoluta (Meyrick), one of the most important tomato pests worldwide, is heavily controlled by the application of insecticides. Diamide insecticides represent a new class of products recently registered to control T. absoluta After 6 yr of use, control failures have been reported in populations of this pest, suggesting a hypothetical resistance development. Therefore, a resistance survey was performed using nine populations of T. absoluta that were collected in open fields, including from areas with reports of a reduced efficacy of diamides in the Northeast and Central regions of Brazil. Initial surveys with diagnostic and label doses proved the reduced efficacy of diamides against most populations. The LC50 values of chlorantraniliprole varied from 0.0044 (Brasília) to 1,263 (América Dourada) mg AI liter-1 (the resistance ratios [RR50] ranged from 1.0- to 288,995-fold), whereas the LC50 values for cyantraniliprole and flubendiamide, respectively, varied from 0.015 (Brasília) to 281 (América Dourada) mg AI liter-1 and from 0.038 (Guaraciaba do Norte) to 3,018 (Gameleira 1) mg AI liter-1 The resistance ratios (RR50) ranged from 1.0- to 18,423-fold for cyantraniliprole and from 1.0- to 80,413-fold for flubendiamide. The log LC50 values of pairwise diamides were strongly and significantly correlated, which denoted cross-resistance among them. Very high resistance to diamides in T. absoluta was observed in this study, suggesting that strategies to mitigate resistance and thereby control the pest must not include only insecticides. Other control tactics must be carefully implemented over time to increase the life span of diamides, including rotational practices with other molecules.
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Affiliation(s)
- Jefferson E Silva
- Departamento de Agronomia - (Entomologia), Universidade Federal Rural de Pernambuco, 52171-900, Recife, PE, Brazil (; ; ; )
| | - Carla P O Assis
- Departamento de Agronomia - (Entomologia), Universidade Federal Rural de Pernambuco, 52171-900, Recife, PE, Brazil (; ; ; )
| | - Lílian M S Ribeiro
- Departamento de Agronomia - (Entomologia), Universidade Federal Rural de Pernambuco, 52171-900, Recife, PE, Brazil (; ; ; )
| | - Herbert A A Siqueira
- Departamento de Agronomia - (Entomologia), Universidade Federal Rural de Pernambuco, 52171-900, Recife, PE, Brazil (; ; ; ),
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Zeng X, He Y, Wu J, Tang Y, Gu J, Ding W, Zhang Y. Sublethal Effects of Cyantraniliprole and Imidacloprid on Feeding Behavior and Life Table Parameters of Myzus persicae (Hemiptera: Aphididae). J Econ Entomol 2016; 109:1595-1602. [PMID: 27247299 DOI: 10.1093/jee/tow104] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 04/21/2016] [Indexed: 06/05/2023]
Abstract
The green peach aphid, Myzus persicae (Sulzer) (Hemiptera: Aphididae), is an agricultural pest that seriously infests many crops worldwide. This study used electrical penetration graphs (EPGs) and life table parameters to estimate the sublethal effects of cyantraniliprole and imidacloprid on the feeding behavior and hormesis of M. persicae The sublethal concentrations (LC30) of cyantraniliprole and imidacloprid against adult M. persicae were 4.933 and 0.541 mg L(-1), respectively. The feeding data obtained from EPG analysis indicated that the count probes and number of short probes (<3 min) were significantly increased when aphids were exposed to LC30 of imidacloprid-treated plants. In addition, the phloem-feeding behavior of M persicae was significantly impaired on fed tobacco plants treated with cyantraniliprole and imidacloprid at LC30 Analysis of life table parameters indicated that the growth and reproduction of F1 generation aphids were significantly affected when initial adults were exposed to LC30 of cyantraniliprole and imidacloprid. The nymphal period, female longevity, total preoviposition period, and mean generation time were significantly prolonged when initial adults were exposed to LC30 of imidacloprid. By comparison, these parameters were prolonged but not significantly in the cyantraniliprole treatment. The fecundity and gross reproductive rate were significantly increased in the treated groups. Similarly, the net reproductive rate was greater in the treated group than the control group. Our results indicate that treatment with LC30 of imidacloprid and cyantraniliprole would lead to a hormetic response of M. persicae, with higher likelihood of occurrence when initial adults were exposed to LC30 of cyantraniliprole.
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Affiliation(s)
- Xianyi Zeng
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Yingqin He
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Jiaxing Wu
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Yuanman Tang
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Jitao Gu
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Wei Ding
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Yongqiang Zhang
- College of Plant Protection, Southwest University, Chongqing 400715, China
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Matos YK, Schal C. Laboratory and Field Evaluation of Zyrox Fly Granular Bait Against Asian and German Cockroaches (Dictyoptera: Blattellidae). J Econ Entomol 2016; 109:1807-1812. [PMID: 27122494 PMCID: PMC4981077 DOI: 10.1093/jee/tow092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 04/03/2016] [Indexed: 06/05/2023]
Abstract
The Asian cockroach (Blattella asahinai Mizukubo) was introduced to Florida in 1986 and has since spread throughout the Southeastern United States. Blattella asahinai is a peridomestic pest and high population densities in residential areas can become a nuisance, especially when adults fly into homes. Few studies to date have been conducted on Asian cockroach control, and we evaluated the efficacy of Zyrox Fly Granular Bait and Maxforce Complete Granular Insect Bait against this species in the laboratory compared with the closely related German cockroach (Blattella germanica (L.)). In no-choice and two-choice assays with both species, Zyrox bait and Maxforce bait achieved nearly 100% mortality within two and five days, respectively. We also tested Zyrox bait against B. asahinai in an invasive field population in North Carolina at the label rate (2 g/m(2)) and at approximately three times the label rate (6.9 g/m(2)), and found that broadcast applications at both rates reduced populations by an average of 64 and 92%, respectively, for 35 d after the initial application. Zyrox Fly Bait appears to be effective against the Asian and German cockroaches, and could be another tool in an integrated pest management program, if its label could be extended or the active ingredient (cyantraniliprole) formulated into a cockroach bait.
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Affiliation(s)
- Yvonne K Matos
- Department of Entomology and W. M. Keck Center for Behavioral Biology, North Carolina State University, Campus Box 7613, Raleigh, NC 27695-7613 (; ), and
| | - Coby Schal
- Department of Entomology and W. M. Keck Center for Behavioral Biology, North Carolina State University, Campus Box 7613, Raleigh, NC 27695-7613 (; ), and
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Wang ZH, Gong YJ, Jin GH, Li BY, Chen JC, Kang ZJ, Zhu L, Gao YL, Reitz S, Wei SJ. Field-evolved resistance to insecticides in the invasive western flower thrips Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) in China. Pest Manag Sci 2016; 72:1440-1444. [PMID: 26617067 DOI: 10.1002/ps.4200] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 11/13/2015] [Accepted: 11/27/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND To understand the current status of insecticide resistance of the invasive western flower thrips, Frankliniella occidentalis, in China, the responses of six field populations to six commonly used insecticides, i.e. spinosad, spinetoram, cyantraniliprole, imidacloprid, acetamiprid and pyriproxyfen, were evaluated in comparison with a susceptible laboratory strain. RESULTS Field populations tended to be less susceptible than the laboratory strain. The population from Shouguang, Shandong Province, showed the lowest levels of susceptibility. A 15.64-fold and 17.29-fold resistance to spinosad and spinetoram was detected in the Shouguang population. A 11.74-fold and 13.64-fold resistance to cyantraniliprole was detected in populations from Daxing in the Beijing area and Shouguang. All populations showed a low level of resistance to imidacloprid, acetamiprid and pyriproxyfen, except for the Shouguang population, which was 127.58-fold more resistant to pyriproxyfen. CONCLUSION Variations in resistance to the tested insecticides were observed among the sampled population. Spinosad and spinetoram were the most efficient insecticides and are recommended for use in an integrated management programme. Resistance management strategies should be implemented to reduce the potential for resistance evolving. © 2015 Society of Chemical Industry.
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Affiliation(s)
- Ze-Hua Wang
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Ya-Jun Gong
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Gui-Hua Jin
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Bing-Yan Li
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Jin-Cui Chen
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Zong-Jiang Kang
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Liang Zhu
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Yu-Lin Gao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Stuart Reitz
- Malheur County Extension, Oregon State University, Ontario, OR, USA
| | - Shu-Jun Wei
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
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Sang S, Shu B, Yi X, Liu J, Hu M, Zhong G. Cross-resistance and baseline susceptibility of Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) to cyantraniliprole in the south of China. Pest Manag Sci 2016; 72:922-928. [PMID: 26118543 DOI: 10.1002/ps.4068] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 05/05/2015] [Accepted: 06/22/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND The oriental leafworm moth, Spodoptera litura Fab. (Lepidoptera: Noctuidae), is a widely distributed polyphagous insect pest in Asia that has been shown to be resistant to various types of insecticide. The newly registered anthranilic diamide cyantraniliprole provided novel insight and great opportunities to control S. litura. RESULTS In this study, the susceptibilities of S. litura collected from South China to cyantraniliprole were measured by standard leaf-disc bioassay, and obvious variation in susceptibility was observed among the 17 field populations, with LC50 values varying from 0.206 to 1.336 mg AI L(-1). Significant correlations were detected between the LC50 values of cyantraniliprole and chlorantraniliprole (P < 0.05). However, no significant correlation (P > 0.05) was observed between the two anthranilic diamides and other insecticides with different action mechanisms (delcamethrin, chlorpyrifos, indoxacarb and emamectin benzoate). Piperonyl butoxide showed obvious synergism in Lab-Sus, ZC14 and cyantraniliprole-resistant strains, while diethyl maleate and S,S,S-tributylphorotrithioate had no obvious synergistic effects in any of the strains tested. CONCLUSION These results revealed obvious regional variation in cyantraniliprole susceptibilities among populations of S. litura from different areas, and potential cross-resistance to chlorantraniliprole, which suggested that S. litura could develop resistance to cyantraniliprole. Detoxification enzymes might not be involved in the observed tolerance in field-collected populations and the cyantraniliprole-resistant strain.
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Affiliation(s)
- Song Sang
- Laboratory of Insect Toxicology, Key Laboratory of Pesticide and Chemical Biology, South China Agricultural University, Guangzhou, China
| | - Benshui Shu
- Laboratory of Insect Toxicology, Key Laboratory of Pesticide and Chemical Biology, South China Agricultural University, Guangzhou, China
| | - Xin Yi
- Laboratory of Insect Toxicology, Key Laboratory of Pesticide and Chemical Biology, South China Agricultural University, Guangzhou, China
| | - Jie Liu
- Laboratory of Insect Toxicology, Key Laboratory of Pesticide and Chemical Biology, South China Agricultural University, Guangzhou, China
| | - Meiying Hu
- Laboratory of Insect Toxicology, Key Laboratory of Pesticide and Chemical Biology, South China Agricultural University, Guangzhou, China
| | - Guohua Zhong
- Laboratory of Insect Toxicology, Key Laboratory of Pesticide and Chemical Biology, South China Agricultural University, Guangzhou, China
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Mustafa T, Alvarez JM, Munyaneza JE. Effect of Cyantraniliprole on Probing Behavior of the Potato Psyllid (Hemiptera: Triozidae) as Measured by the Electrical Penetration Graph Technique. J Econ Entomol 2015; 108:2529-2535. [PMID: 26340224 DOI: 10.1093/jee/tov259] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 08/09/2015] [Indexed: 06/05/2023]
Abstract
Zebra chip (ZC), an economically important disease of potato, is caused by 'Candidatus Liberibacter solanacearum' (Lso) transmitted by the potato psyllid, Bactericera cockerelli (Šulc) (Hemiptera: Triozidae). Currently, using insecticides against potato psyllid is the only means to manage ZC. However, the ability of the potato psyllid to rapidly transmit Lso represents a substantial challenge in preventing the spread of ZC. Cyantraniliprole, a novel second-generation anthranilic diamide insecticide has been shown to deter insect feeding and reduce disease transmission. During this study, the effect of cyantraniliprole on potato psyllid probing behavior was assessed using electrical penetration graph technology and compared with abamectin, a commonly used insecticide to control potato psyllid. Results showed that both cyantraniliprole and abamectin significantly deterred probing behavior of the potato psyllid. Average duration of intercellular stylet penetration on cyantraniliprole- and abamectin-treated and untreated control plants was 2.36, 1.80, and 9.15 h, respectively. It took psyllids 1.82, 1.10, and 2.42 h to reach the xylem of cyantraniliprole- and abamectin-treated and untreated plants, respectively. Xylem sap ingestion duration averaged 0.53, 0.57, and 3.66 h on cyantraniliprole- and abamectin-treated and untreated controls, respectively. None of the psyllids exposed to insecticide-treated plants reached the phloem tissue, except one that bypassed the xylem. The insects completely ceased probing after 4.44 and 3.64 h on cyantraniliprole- and abamectin-treated plants, respectively, in contrast with those on untreated plants that probed throughout the entire 24-h experiment duration. These results indicate that cyantraniliprole is as effective as abamectin in deterring potato psyllid feeding and could significantly reduce transmission of Lso and the spread of ZC.
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Affiliation(s)
- T Mustafa
- USDA-ARS, Yakima Agricultural Research Laboratory, Wapato, WA 98951. Department of Entomology, Washington State University, Pullman, WA 99164
| | - J M Alvarez
- DuPont Crop Protection, Stine-Haskell Research Center, 1090 Elkton Rd., Newark, DE 19711
| | - J E Munyaneza
- USDA-ARS, Yakima Agricultural Research Laboratory, Wapato, WA 98951.
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Huseth AS, Groves RL, Chapman SA, Nault BA. Evaluation of diamide insecticides co-applied with other agrochemicals at various times to manage Ostrinia nubilalis in processing snap bean. Pest Manag Sci 2015; 71:1649-1656. [PMID: 25582896 DOI: 10.1002/ps.3973] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 12/14/2014] [Accepted: 12/19/2014] [Indexed: 06/04/2023]
Abstract
BACKGROUND Multiple applications of pyrethroid insecticides are used to manage European corn borer, Ostrinia nubilalis Hübner, in snap bean, but new diamide insecticides may reduce application frequency. In a 2 year small-plot study, O. nubilalis control was evaluated by applying cyantraniliprole (diamide) and bifenthrin (pyrethroid) insecticides at one of three phenological stages (bud, bloom and pod formation) of snap bean development. Co-application of these insecticides with either herbicides or fungicides was also examined as a way to reduce the total number of sprays during a season. RESULTS Cyantraniliprole applications timed either during bloom or during pod formation controlled O. nubilalis better than similar timings of bifenthrin. Co-applications of insecticides with fungicides controlled O. nubilalis as well as insecticide applications alone. Insecticides applied either alone or with herbicides during bud stage did not control this pest. CONCLUSION Diamides are an alternative to pyrethroids for the management of O. nubilalis in snap bean. Adoption of diamides by snap bean growers could improve the efficiency of production by reducing the number of sprays required each season.
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Affiliation(s)
- Anders S Huseth
- Cornell University, New York State Agricultural Experiment Station, Geneva, NY, USA
| | - Russell L Groves
- Department of Entomology, University of Wisconsin-Madison, Madison, WI, USA
| | - Scott A Chapman
- Department of Entomology, University of Wisconsin-Madison, Madison, WI, USA
| | - Brian A Nault
- Cornell University, New York State Agricultural Experiment Station, Geneva, NY, USA
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Parker C, Baldwin R, Pereira R, Koehler P. Evaluation of Cyantraniliprole and Other Commercial Fly Baits under Laboratory and Field Conditions. Insects 2015; 6:977-87. [PMID: 26610575 PMCID: PMC4693182 DOI: 10.3390/insects6040977] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 11/04/2015] [Accepted: 11/18/2015] [Indexed: 11/16/2022]
Abstract
Laboratory and field trials were performed to evaluate the attractiveness and efficacy of commercial baits (cyantraniliprole; methomyl + (Z)-9-tricosene; dinotefuran + (Z)-9-tricosene; imidacloprid granular + (Z)-9-tricosene; and imidacloprid liquid + (Z)-9-tricosene). In choice tests; flies were most attracted to cyantraniliprole bait > dinotefuran + (Z)-9 > methomyl + (Z)-9 bait > imidacloprid granular + (Z)-9 bait > imidacloprid liquid + (Z)-9 bait. Significant degradation in bait efficacy was observed after two weeks of aging excluding imidacloprid granular; which began to degrade in field conditions after one week. Cyantraniliprole; the new fly bait active ingredient in Zyrox(®); had the longest time to knockdown in the laboratory tests; but on susceptible flies; achieved 95%-100% knockdown within an hour of exposure. Zyrox(®) was resistant to weathering for a week; and was more attractive to flies in the field when compared to methomyl + (Z)-9 bait.
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Affiliation(s)
- Casey Parker
- Department of Entomology and Nematology, University of Florida, 970 Natural Area Dr., Gainesville, FL 32611, USA.
| | - Rebecca Baldwin
- Department of Entomology and Nematology, University of Florida, 970 Natural Area Dr., Gainesville, FL 32611, USA.
| | - Roberto Pereira
- Department of Entomology and Nematology, University of Florida, 970 Natural Area Dr., Gainesville, FL 32611, USA.
| | - Philip Koehler
- Department of Entomology and Nematology, University of Florida, 970 Natural Area Dr., Gainesville, FL 32611, USA.
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Bielza P, Guillén J. Cyantraniliprole: a valuable tool for Frankliniella occidentalis (Pergande) management. Pest Manag Sci 2015; 71:1068-1074. [PMID: 25138907 DOI: 10.1002/ps.3886] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Revised: 08/11/2014] [Accepted: 08/13/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND Frankliniella occidentalis is a worldwide economically important pest. Scarcity of effective products and cross-resistance issues make resistance to existing insecticides a recurring problem that requires the development of new control tools, such as incorporating novel compounds. Lethal effects of cyantraniliprole on adults and larvae from field and insecticide-resistant populations were evaluated. In addition, the sublethal effects on biological features such as fecundity, fertility, feeding, oviposition and mating were studied. RESULTS Results obtained for larvae produced LC50 values ranging from 33.4 to 109.2 mg L(-1) , with a low natural variability (3.3-fold) and a LC50 composite value of 52.2 mg L(-1) . The susceptibility for adults was 23-fold lower than for larvae. No evidence of cross-resistance between cyantraniliprole and established insecticides used against thrips was evident. Relevant sublethal effects of cyantraniliprole were demonstrated, including reduced fecundity, fertility, feeding, oviposition and mating success. CONCLUSION Low variation in susceptibility across contemporary populations of F. occidentalis and a lack of cross-resistance to other insecticides indicate that cyantraniliprole is a potential candidate in rotation programmes within an insecticide resistance management strategy. The combined sublethal effect on reproduction will have an important impact on population reduction. Available data indicate that cyantraniliprole is likely to be a valuable tool for managing thrips populations.
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Affiliation(s)
- Pablo Bielza
- Departamento de Producción Vegetal, Universidad Politécnica de Cartagena, Cartagena, Spain
| | - Juan Guillén
- Departamento de Producción Vegetal, Universidad Politécnica de Cartagena, Cartagena, Spain
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Murillo AC, Gerry AC, Gallagher NT, Peterson NG, Mullens BA. Laboratory and field assessment of cyantraniliprole relative to existing fly baits. Pest Manag Sci 2015; 71:752-758. [PMID: 24976618 DOI: 10.1002/ps.3847] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 05/27/2014] [Accepted: 06/18/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND Toxic fly baits are commonly used for fly control in California animal operations. However, resistance development has been a problem. Comprehensive laboratory and field studies were conducted to test commercial baits (imidacloprid, methomyl, dinotefuran, spinosad) and one novel cyantraniliprole bait. A susceptible Musca domestica strain was compared with wild-type M. domestica and Fannia canicularis strains in the laboratory using choice/no-choice tests. Field visitation to baits and both short- and longer-term mortality were documented. RESULTS Susceptible Musca suffered high mortality with all baits after 3 days of choice and no-choice tests. Wild-type Musca mortality was more variable and higher in no-choice relative to choice tests. Fannia were most susceptible to spinosad > dinotefuran = cyantraniliprole > methomyl = imidacloprid. Field Musca were most attracted to spinosad > cyantraniliprole > dinotefuran > sugar > methomyl > imidacloprid. Delayed mortality from bait-fed field flies (captured and held with untreated food and water for 3 days) was ranked spinosad = cyantraniliprole > dinotefuran = methomyl > imidacloprid > sugar. CONCLUSION Behavioral resistance of M. domestica to imidacloprid and methomyl persists. Spinosad and cyantraniliprole baits (delayed mortality) performed best. Speed of action may be a factor in use and misuse of baits.
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Affiliation(s)
- Amy C Murillo
- Department of Entomology, University of California, Riverside, CA, USA
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Campos MR, Silva TBM, Silva WM, Silva JE, Siqueira HAA. Susceptibility of Tuta absoluta (Lepidoptera: Gelechiidae) Brazilian populations to ryanodine receptor modulators. Pest Manag Sci 2015; 71:537-544. [PMID: 24863675 DOI: 10.1002/ps.3835] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Revised: 05/17/2014] [Accepted: 05/21/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND Phthalic and anthranilic diamides comprise a new insecticide class recently registered in Brazil to control Lepidoptera such as Tuta absoluta (Meyrick). Therefore, the baseline of susceptibility was determined for eight representative field populations of this species to establish a resistance monitoring programme. The potential for cross-resistance as well as detoxification metabolism was assessed in order to fine-tune the resistance management programme. RESULTS Brazilian populations were very susceptible to chlorantraniliprole (LC50 values varied from 3.17 to 29.64 µg AI L(-1) ), cyantraniliprole (LC50 values varied from 8.61 to 28.95 µg AI L(-1) ) and flubendiamide (LC50 values varied from 94 to 230 µg AI L(-1) ), with respective resistance ratios of 9.33-, 3.36- and 2.45-fold between most susceptible and tolerant populations. Anthranilic diamides showed significant correlations between log LC50 values among themselves, suggesting a high risk of cross-resistance. However, the log LC50 values of T. absoluta to phthalic diamide did not show any correlation with anthranilic diamides. Cytochrome- P450-dependent monooxygenase activity showed a weak correlation with log LC50 values of T. absoluta populations to anthranilic diamides, which suggests a potential route for evolving resistance to anthranilic diamides. CONCLUSION The diamides were highly effective against T. absoluta, with populations showing a homogeneous response to them. Cross-resistance is very likely between anthranilic diamides in T. absoluta. Populations of this pest may evolve resistance by increasing cytochrome- P450-dependent monooxygenases.
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Affiliation(s)
- Mateus R Campos
- Departamento de Agronomia (Entomologia), Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
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Zhang R, Jang EB, He S, Chen J. Lethal and sublethal effects of cyantraniliprole on Bactrocera dorsalis (Hendel) (Diptera: Tephritidae). Pest Manag Sci 2015; 71:250-256. [PMID: 24700426 DOI: 10.1002/ps.3791] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 02/21/2014] [Accepted: 03/28/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND The oriental fruit fly, Bactrocera dorsalis (Hendel), is one of the most globally important insect pests. Studies were conducted with the novel anthranilic diamide insecticide cyantraniliprole to determine its lethal and sublethal effects on B. dorsalis. RESULTS An ingestion toxicity bioassay showed that cyantraniliprole was active against B. dorsalis, and the 72 h feeding LC50 was 3.22 µg g(-1) in adult diet for a susceptible strain. Sublethal doses of cyantraniliprole (1.30 µg g(-1) adult diet) induced a hormesis effect on B. dorsalis. The mating competitiveness of B. dorsalis treated with cyantraniliprole at 3.27 µg g(-1) adult diet was significantly lower when compared with the controls. The lower dose (1.30 µg g(-1) adult diet) of cyantraniliprole improved the total mating times of both mating pairs in treated groups and also the mating competitiveness of the treated males when compared with the higher dose and controls. Cyantraniliprole-treated females of the mated pairs with the lower dose laid more eggs. On the fifth day, female receptivity in the treated group was significantly reduced when compared with the controls. CONCLUSION These results indicate that cyantraniliprole is effective against B. dorsalis. The inhibition and stimulation effect of cyantraniliprole on the adult's mating performance at different concentrations was proved.
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Affiliation(s)
- Ruimin Zhang
- Department of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
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Jacobson AL, Kennedy GG. Electrical penetration graph studies to investigate the effects of cyantraniliprole on feeding behavior of Myzus persicae (Hemiptera: Aphididae) on Capsicum annuum. Pest Manag Sci 2014; 70:836-840. [PMID: 23943625 DOI: 10.1002/ps.3626] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 08/02/2013] [Accepted: 08/13/2013] [Indexed: 06/02/2023]
Abstract
BACKGROUND The anthranilic diamide insecticide cyantraniliprole has been shown to suppress aphid and whitefly populations as well as reduce transmission of plant viruses by thrips and whiteflies when taken up systemically by the plant. In this study, electrical penetration graphing (EPG) was used to compare effects of cyantraniliprole on feeding behavior of Myzus persicae with those of the neonicotinoid insecticide imidacloprid applied as a soil drench to pepper plants two-, six-, and ten-days post-treatment. RESULTS Significant reductions in the total amount of time spent probing, mean number of phloem feeding events, and mean number of intracellular punctures were observed on both cyantraniliprole- and imidacloprid-treated plants, compared to aphids that fed on plants treated only with water. Imidacloprid treatment also caused a significant reduction in the total number of probes relative to the water treated control. The effects of cyantraniliprole were statistically significant only in assays conducted at ten-days post-treatment, whereas the effects of imidacloprid on aphid feeding were significant in assays conducted at two-, six-, and ten-days post-treatment. CONCLUSION These findings document significant effects of cyantraniliprole on feeding by Myzus persicae.
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Affiliation(s)
- Alana L Jacobson
- Department of Entomology, North Carolina State University, Box 7630, Raleigh, NC, 27695-7630, USA
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Xie W, Liu Y, Wang S, Wu Q, Pan H, Yang X, Guo L, Zhang Y. Sensitivity of Bemisia tabaci (Hemiptera: Aleyrodidae) to several new insecticides in China: effects of insecticide type and whitefly species, strain, and stage. J Insect Sci 2014; 14:261. [PMID: 25434040 PMCID: PMC5634032 DOI: 10.1093/jisesa/ieu123] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Accepted: 04/26/2014] [Indexed: 06/03/2023]
Abstract
Whitefly biotypes B and Q are the two most damaging members of the Bemisia tabaci (Hemiptera: Aleyrodidae) species complex. Control of B. tabaci (and especially of Q) has been impaired by resistance to commonly used insecticides. To find new insecticides for B. tabaci management in China, we investigated the sensitivity of eggs, larvae, and adults of laboratory strains of B and Q (named Lab-B and Lab-Q) and field strains of Q to several insecticides. For eggs, larvae, and adults of B. tabaci and for six insecticides (cyantraniliprole, chlorantraniliprole, pyriproxyfen, buprofezin, acetamiprid, and thiamethoxam), LC50 values were higher for Lab-Q than for Lab-B; avermectin LC50 values, however, were low for adults of both Lab-Q and Lab-B. Based on the laboratory results, insecticides were selected to test against eggs, larvae, and adults of four field strains of B. tabaci Q. Although the field strains differed in their sensitivity to the insecticides, the eggs and larvae of all strains were highly sensitive to cyantraniliprole, and the adults of all strains were highly sensitive to avermectin. The eggs, larvae, and adults of B. tabaci Q were generally more resistant than those of B. tabaci B to the tested insecticides. B. tabaci Q eggs and larvae were sensitive to cyantraniliprole and pyriproxyfen, whereas B. tabaci Q adults were sensitive to avermectin. Field trials should be conducted with cyantraniliprole, pyriproxyfen, and avermectin for control of B. tabaci Q and B in China.
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Affiliation(s)
- Wen Xie
- *These authors contributed equally to this work
| | - Yang Liu
- *These authors contributed equally to this work
| | - Shaoli Wang
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie, Haidian District, Beijing 100081, People's Republic of China*These authors contributed equally to this work
| | - Qingjun Wu
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie, Haidian District, Beijing 100081, People's Republic of China*These authors contributed equally to this work
| | - Huipeng Pan
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie, Haidian District, Beijing 100081, People's Republic of China*These authors contributed equally to this work
| | - Xin Yang
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie, Haidian District, Beijing 100081, People's Republic of China*These authors contributed equally to this work
| | - Litao Guo
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie, Haidian District, Beijing 100081, People's Republic of China*These authors contributed equally to this work
| | - Youjun Zhang
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie, Haidian District, Beijing 100081, People's Republic of China*These authors contributed equally to this work
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Qi S, Casida JE. Species differences in chlorantraniliprole and flubendiamide insecticide binding sites in the ryanodine receptor. Pestic Biochem Physiol 2013; 107:321-6. [PMID: 24267693 DOI: 10.1016/j.pestbp.2013.09.004] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 09/05/2013] [Accepted: 09/17/2013] [Indexed: 05/14/2023]
Abstract
Anthranilic and phthalic diamides exemplified by chlorantraniliprole (Chlo) or cyantraniliprole (Cyan) and flubendiamide (Flu), respectively, are the newest major chemotype of insecticides with outstanding potency, little or no cross resistance with other classes and low mammalian toxicity. They are activators of the ryanodine (Ry) receptor (RyR)-Ca(2+) channel, based on Ca(2+) flux and electrophysiology investigations. The goal of this study is to define species differences in the degree and mechanisms of diamide selective action by radioligand specific binding studies at the [(3)H]Ry, [(3)H]Chlo and [(3)H]Flu sites. The [(3)H]Ry site is observed in muscle of lobster, rabbit and four insect species (Musca domestica, Apis mellifera, Heliothis virescens and Agrotis ipsilon) whereas the [(3)H]Chlo site is evident in the four insects and the [(3)H]Flu site in only the two lepidoptera (Agrotis and Heliothis). [(3)H]Ry binding is significantly stimulated by Chlo, Cyan and Flu with the insects (except Flu with Musca) but not the lobster and rabbit. [(3)H]Chlo binding is stimulated by Ry and Flu in Musca and Apis but not in the lepidoptera, while Flu and Cyan are inhibitory. [(3)H]Flu binding is strongly inhibited by Chlo and Cyan in Agrotis and Heliothis. [(3)H]Chlo and [(3)H]Flu binding are not dependent on added Ca(2+) or ATP in Heliothis and Agrotis whereas the other radioligand-receptor combinations are usually enhanced by Ca(2+) and ATP. More generally, there are species differences in the Ry, Chlo and Flu binding sites of the RyR that may confer selective toxicity and determine target site cross resistance mechanisms.
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Affiliation(s)
- Suzhen Qi
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
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