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Etcheverry L, Spaccesi FG, Cappelletti NE, Lavarías SML. Basal levels of biochemical biomarkers in the freshwater prawn Palaemon argentinus and their alterations due to the exposure of both insecticides cypermethrin and spirotetramat. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 949:174958. [PMID: 39067605 DOI: 10.1016/j.scitotenv.2024.174958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 07/01/2024] [Accepted: 07/20/2024] [Indexed: 07/30/2024]
Abstract
The aim of this study was to evaluate the sensitivity of the prawn Palaemon argentinus to the pyrethroid cypermethrin (CYP) and the tetramic acid spirotetramat (STM). These treatments were compared with prawns collected at a reference site to define their basal physiological state. Initially, physicochemical parameters and several pollutants at the selected site were analyzed. The LC50-96 h was determined in adult prawns. Then, prawns were exposed for 96 h to sublethal concentrations of CYP (0.0005 μg/l) and STM (0.44 mg/l) to evaluate the effects on some biochemical endpoints. A treatment combining both pesticides was also added at 5 % of these values. Controls with and without solvent (acetone) were included. The LC50-96 h values were 0.005 μg/l and 4.43 mg/l for CYP and STM, respectively. Moreover, some biomarkers linked to oxidative and energy metabolism were analyzed in the hepatopancreas and muscle of both essayed prawns and those at the basal state. The STM caused a significant decrease in total protein content (32 %) in contrast to the increase of protein carbonyl content (71 %) (p < 0.05). Also, glutathione S-transferase (52 %) and catalase (61 %) activities in the hepatopancreas of exposed prawns were higher compared to both the control and state basal groups (p < 0.05). In muscle, only a significant decrease in the lactate content (69 %) was caused by STM (p < 0.05). In addition, CYP caused a significant increase in the lactate dehydrogenase activity (110 %) in muscle and triacylglycerol content (73 %) in the hepatopancreas (p < 0.05). The integrated biomarker index (IBRv2) analysis showed that STM caused greater damage than CYP. Besides, the combined treatment showed an antagonistic interaction between both insecticides. The differential response of biomarkers to both CYP and STM exposure with respect to their basal levels shows a high sensitivity of P. argentinus demonstrating its potential role as a bioindicator organism.
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Affiliation(s)
- Leda Etcheverry
- Instituto de Limnología de La Plata "Dr. Raúl A. Ringuelet" (ILPLA) CONICET CCT La Plata-Universidad Nacional de La Plata (UNLP)- Asoc. CIC, Buenos Aires, Argentina; Facultad de Cs. Exactas, UNLP, Buenos Aires, Argentina
| | - Fernando G Spaccesi
- Instituto de Limnología de La Plata "Dr. Raúl A. Ringuelet" (ILPLA) CONICET CCT La Plata-Universidad Nacional de La Plata (UNLP)- Asoc. CIC, Buenos Aires, Argentina; Facultad de Cs. Naturales y Museo, UNLP, Buenos Aires, Argentina
| | - Natalia E Cappelletti
- CONICET-Departamento de Ambiente y Turismo, Universidad Nacional de Avellaneda, Buenos Aires, Argentina
| | - Sabrina M L Lavarías
- Instituto de Limnología de La Plata "Dr. Raúl A. Ringuelet" (ILPLA) CONICET CCT La Plata-Universidad Nacional de La Plata (UNLP)- Asoc. CIC, Buenos Aires, Argentina; Facultad de Cs. Médicas, UNLP, Buenos Aires, Argentina.
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Cui L, Deng G, Wu J, Ding F, Wang W, Yu H, Song Z, Rui C, Han H, Yuan H. Fabrication of nanogels to improve the toxicity and persistence of cycloxaprid against Diaphorina citri, the vector of citrus huanglongbing. J Adv Res 2024:S2090-1232(24)00379-5. [PMID: 39245339 DOI: 10.1016/j.jare.2024.08.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 08/01/2024] [Accepted: 08/29/2024] [Indexed: 09/10/2024] Open
Abstract
INTRODUCTION Diaphorina citri is the most serious pest of citrus worldwide because it is the natural insect vector of huanglongbing. Cycloxaprid (Cyc) was highly toxic to D. citri. However, the poor solubility and stability had limited its development. OBJECTIVES In order to improve the insecticidal effect and stability to harsh climatic conditions of Cyc. METHODS Cyc was chosen as the representative pesticide, 4,4'-methylenebis (phenyl isocyanate), PEG-600 and n-butanol were used to prepare sustained-release nano-gelation particles (Cyc@NGs). RESULTS Cyc@NGs enhance the toxicity of Cyc more than 3 folds. Furthermore, Cyc@NGs showed excellent anti-rain and anti-UV capacity. After being exposed to ultraviolet light for 12 h, Cyc decreased by 100 %, while the insecticide content of Cyc@NGs only decreased by 25 %. Additionally, Cyc@NGs possessed better wettability on citrus leaves, mainly benefitting from its lower contact angle on citrus leaves. Moreover, FITC-labeled nano-gelation particles (FITC-NGs) exhibited high capability to penetrate and enrich in citrus leaf tissue and D. citri midgut. Consequently, NGs promoted the translocation and durability of insecticides, thereby, increasing the insecticidal activity. The results suggested that nano-gelation particle is a promising platform to deliver insecticides and Cyc@NGs would be the suitable candidate for the effective management of D. citri.
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Affiliation(s)
- Li Cui
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing 100193, China
| | - Guiyun Deng
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jianghong Wu
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Fang Ding
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Wenjie Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing 100193, China; College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Haiyang Yu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing 100193, China; College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Zhiyong Song
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Changhui Rui
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing 100193, China
| | - Heyou Han
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Huizhu Yuan
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing 100193, China.
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Pec M, Ferreira EA, Peñaflor MFGV. Association of Non-host Crop Plants with Mandarin in Host Location and Survival of Diaphorina citri Kuwayama (Hemiptera: Psyllidae). NEOTROPICAL ENTOMOLOGY 2024; 53:304-313. [PMID: 38091236 DOI: 10.1007/s13744-023-01107-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 11/24/2023] [Indexed: 12/20/2023]
Abstract
Research efforts have been made to develop novel tactics, such as those targeting behavioral control, for management of the Asian citrus psyllid Diaphorina citri Kuwayama (Hemiptera: Psyllidae), vector of the causal agent of citrus Huanglongbing. Here, we investigated whether association of "Ponkan" mandarin (Citrus reticulata) with volatiles from non-host crops: avocado, passion fruit or coffee, alters host location by the Asian citrus psyllid; and whether they can be temporary hosts for the Asian citrus psyllid. In wind tunnel assays, we found that the association of mandarin seedling with avocado plant volatiles reduced in 30% the number of psyllids sitting on host plants compared to the mandarin alone. In contrast, passion fruit plant volatiles facilitated host location by psyllids, which found mandarin seedlings faster than when exposed to mandarin alone. The association with coffee volatiles did not alter the attractiveness of mandarin to the Asian citrus psyllid. Survival and half-lethal time (LT50) of D. citri fed on non-host plants were longer than those insects with water only, but shorter than those fed on mandarin. Among the non-host plants, D. citri performed better in coffee, followed by avocado and passion fruit plants. Our results indicate that the association of mandarin with avocado plant can be beneficial for Asian citrus psyllid management.
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Affiliation(s)
- Marvin Pec
- Dept of Entomology, Lab of Chemical Ecology of Insect-Plant Interaction (LEQIIP), Univ Federal de Lavras, Lavras, MG, Brazil
- Dept of Entomology and Acarology, Escola Superior de Agricultura "Luiz de Queiroz", Univ of São Paulo, Piracicaba, SP, Brazil
| | | | - Maria Fernanda G V Peñaflor
- Dept of Entomology, Lab of Chemical Ecology of Insect-Plant Interaction (LEQIIP), Univ Federal de Lavras, Lavras, MG, Brazil.
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Yu H, Liu B, Zhao Y, Li J, Wu G, Ma J, Gui F, Tao F, Hao X, Ding X, Qin X. Combined Activity of Saponin B Isolated from Dodonaea viscosa Seeds with Pesticide Azadirachtin against the Pest Spodoptera litura. Metabolites 2023; 14:15. [PMID: 38248818 PMCID: PMC10820500 DOI: 10.3390/metabo14010015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 01/23/2024] Open
Abstract
Azadirachtin is regarded as one of the best botanical pesticides due to its broad spectrum of insecticides and low interference with natural enemies. To enhance the effect of azadirachtin and slow down the generation of resistance, the combined activity was studied. Here, we found that Dodonaea viscosa saponin B (DVSB) isolated from the seeds of Dodonaea viscosa has good combined activity with the azadirachtin. The mixture of DVSB and azadirachtin in a volume ratio of 1:4 had the strongest combined effect against Spodoptera litura, with a co-toxicity coefficient (CTC) of 212.87. DVSB exerted its combined activity by affecting the contact angle, surface tension, maximum retention and cell membrane permeability. When mixed with DVSB, the contact angle and surface tension decreased by 30.38% and 23.68%, and the maximum retention increased by 77.15%. DVSB was screened as an effective combined activity botanical compound of azadirachtin upon the control of S. litura and highlights the potential application of botanical compounds as pesticide adjuvants in the pest management.
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Affiliation(s)
- Hang Yu
- State Key Laboratory for Conservation and Utilization of Bioresources in Yunnan, Yunnan Agricultural University, Kunming 650100, China; (H.Y.); (J.L.); (G.W.); (F.G.); (F.T.)
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; (B.L.); (Y.Z.); (X.H.)
- College of Plant Protection, Yunnan Agricultural University, Kunming 650100, China
| | - Boyu Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; (B.L.); (Y.Z.); (X.H.)
- School of Chemical Science and Technology, Yunnan University, Kunming 650504, China
| | - Yuhan Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; (B.L.); (Y.Z.); (X.H.)
| | - Jinliang Li
- State Key Laboratory for Conservation and Utilization of Bioresources in Yunnan, Yunnan Agricultural University, Kunming 650100, China; (H.Y.); (J.L.); (G.W.); (F.G.); (F.T.)
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; (B.L.); (Y.Z.); (X.H.)
- College of Plant Protection, Yunnan Agricultural University, Kunming 650100, China
| | - Guoxing Wu
- State Key Laboratory for Conservation and Utilization of Bioresources in Yunnan, Yunnan Agricultural University, Kunming 650100, China; (H.Y.); (J.L.); (G.W.); (F.G.); (F.T.)
- College of Plant Protection, Yunnan Agricultural University, Kunming 650100, China
| | - Junhong Ma
- Yunnan Tobacco Agricultural Science Research Institute, Kunming 650100, China;
| | - Furong Gui
- State Key Laboratory for Conservation and Utilization of Bioresources in Yunnan, Yunnan Agricultural University, Kunming 650100, China; (H.Y.); (J.L.); (G.W.); (F.G.); (F.T.)
- College of Plant Protection, Yunnan Agricultural University, Kunming 650100, China
| | - Feng Tao
- State Key Laboratory for Conservation and Utilization of Bioresources in Yunnan, Yunnan Agricultural University, Kunming 650100, China; (H.Y.); (J.L.); (G.W.); (F.G.); (F.T.)
- College of Plant Protection, Yunnan Agricultural University, Kunming 650100, China
| | - Xiaojiang Hao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; (B.L.); (Y.Z.); (X.H.)
| | - Xiao Ding
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; (B.L.); (Y.Z.); (X.H.)
| | - Xiaoping Qin
- State Key Laboratory for Conservation and Utilization of Bioresources in Yunnan, Yunnan Agricultural University, Kunming 650100, China; (H.Y.); (J.L.); (G.W.); (F.G.); (F.T.)
- College of Plant Protection, Yunnan Agricultural University, Kunming 650100, China
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Zhang C, Wan B, Jin MR, Wang X, Wei YJ, Zhong L, Xia B. Inhibition of ecdysone receptor (DcEcR) and ultraspiracle (DcUSP) expression in Diaphorina citri increased susceptibility to pesticides. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 194:105518. [PMID: 37532332 DOI: 10.1016/j.pestbp.2023.105518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/15/2023] [Accepted: 07/04/2023] [Indexed: 08/04/2023]
Abstract
Diaphorina citri Kuwayama is of great concern because of its ability to transmit devastating citrus greening illness (Huanglongbing). One strategy for controlling HLB may involve limiting the spread of D. citri. Insecticides using dsRNA target genes may be a useful option to control D. citri. The ecdysone receptor (EcR) and ultraspiracle (USP) are crucial for the growth and reproduction of insects. This study identified the genes for D. citri ecdysone receptor (DcEcR) and ultraspiracle (DcUSP). According to the qPCR data, DcUSP peaked at the 5th-instar nymph stage, while DcEcR peaked at the adult stage. Females expressed DcEcR and DcUSP at much higher levels than males. RNAi was used to examine DcEcR and DcUSP function. The findings demonstrated that inhibition of DcEcR and DcUSP delayed nymph development and decreased survival and eclosion rates. dsEcR caused adults to develop deformed wings, and dsUSP caused nymphs to wither and die. Female adult ovaries developed slowly, and the females laid fewer eggs. Additionally, DcEcR and DcUSP were inhibited, increasing D. citri susceptibility to pesticides. These findings suggest that DcEcR and DcUSP are critical for D. citri development, growth, and reproduction and may serve as potential targets for D. citri management.
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Affiliation(s)
- Cong Zhang
- School of Life Sciences, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Bin Wan
- School of Life Sciences, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Meng-Ru Jin
- School of Life Sciences, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Xi Wang
- Development & Service Center for Agriculture and Rural Industry of Jiangxi Province, China
| | - Yu-Jing Wei
- School of Life Sciences, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Ling Zhong
- Development & Service Center for Agriculture and Rural Industry of Jiangxi Province, China
| | - Bin Xia
- School of Life Sciences, Nanchang University, Nanchang 330031, Jiangxi, China.
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Wang D, Lv L, Gao Z, Zhu YC, Weng H, Yang G, Wang Y. Joint toxic effects of thiamethoxam and flusilazole on the adult worker honey bees (Apis mellifera L.). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 317:120806. [PMID: 36470454 DOI: 10.1016/j.envpol.2022.120806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/16/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
Insect pollinators are routinely exposed to a complex mixture of many pesticides. However, traditional environmental risk assessment is only carried out based on ecotoxicological data of single substances. In this context, we aimed to explore the potential effects when worker honey bees (Apis mellifera L.) were simultaneously challenged by thiamethoxam (TMX) and flusilazole (FSZ). Results displayed that TMX possessed higher toxicity to A. mellifera (96-h LC50 value of 0.11 mg a. i. L-1) than FSZ (96-h LC50 value of 738 mg a. i. L-1). Furthermore, the mixture of TMX and FSZ exhibited an acute synergistic impact on the pollinators. Meanwhile, the activities of SOD, caspase 3, caspase 9, and PPO, as well as the expressions of six genes (abaecin, dorsal-2, defensin-2, vtg, caspase-1, and CYP6AS14) associated with oxidative stress, immune response, lifespan, cell apoptosis, and detoxification metabolism were noteworthily varied in the individual and mixture challenges than at the baseline level. These data revealed that it is imminently essential to investigate the combined toxicity of pesticides since the toxicity evaluation from individual compounds toward honey bees may underestimate the toxicity in realistic conditions. Overall, the present results could help understand the potential contribution of pesticide mixtures to the decline of bee populations.
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Affiliation(s)
- Dou Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products / Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang Province, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, Zhejiang, PR China
| | - Lu Lv
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products / Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang Province, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, Zhejiang, PR China
| | - Zhongwen Gao
- Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Yu-Cheng Zhu
- United States Department of Agriculture, Agricultural Research Service (USDA-ARS), 141 Experiment Station Road, Stoneville, MS, 38776, USA
| | - Hongbiao Weng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products / Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang Province, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, Zhejiang, PR China
| | - Guiling Yang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products / Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang Province, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, Zhejiang, PR China
| | - Yanhua Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products / Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang Province, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, Zhejiang, PR China.
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Wang Q, Yang D, Rui C, Zhou L, Li R, Wang L, Huang W, Ji X, Yang Q, Liang P, Yuan H, Cui L. Seed treatment with chlorantraniliprole and carbaryl mixture for managing fall armyworm on maize: systemic synergism, control efficiency and synergistic mechanism. PEST MANAGEMENT SCIENCE 2023; 79:464-473. [PMID: 36209490 DOI: 10.1002/ps.7215] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 07/28/2022] [Accepted: 09/26/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Fall armyworm (Spodoptera frugiperda) is one of the major invasive pests in China, and has been widely controlled by labor-intensive foliar sprays of agrochemicals in maize (Zea mays L.). RESULTS Systemic bioassay showed that mixtures of chlorantraniliprole (Chlor) and carbaryl (Carb) had dramatically synergistic effect on toxicity to S. frugiperda. Particularly, a mixture of Chlor with Carb at a mass ratio of 2:1 (MCC) exhibited the highest toxicity to S. frugiperda. Therefore, seed treatment of Chlor mixed with Carb was studied as a simple, accurate, efficient and low-cost control technology. Our results showed that MCC treatment shortened the median lethal time and 90% lethal time to S. frugiperda compared to Chlor- and Carb-alone treatments. Meanwhile, smaller leaf consumption by S. frugiperda was recorded under MCC treatment compared to Chlor- and Carb-alone treatments. In field trial, maize-seed treatment with MCC showed efficacy up to 39 days post-emergence in preventing S. frugiperda foliar damage at a low infestation pressure. Moreover, chemical quantification by ultrahigh-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) showed that Chlor residues were more absorbed and concentrated in maize leaves of MCC treatment, compared to that of Chlor-alone treatment. CONCLUSION These results suggested that seed treatment with MCC can be applied to increase the control efficacy and reduce the cost of Chlor-alone treatment for controlling S. frugiperda. The present study provided evidence of an enhanced translocation and accumulation of Chlor residues in maize leaves under MCC treatment, which likely contributed to a synergistic effect against S. frugiperda. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Qinqin Wang
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing, China
- Department of Entomology, China Agricultural University, Beijing, China
| | - Daibin Yang
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Changhui Rui
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Lin Zhou
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Runan Li
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Li Wang
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Weiling Huang
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Xuejiao Ji
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Qingjie Yang
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Pei Liang
- Department of Entomology, China Agricultural University, Beijing, China
| | - Huizhu Yuan
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Li Cui
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing, China
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Wang Q, Rui C, Wang L, Huang W, Zhu J, Ji X, Yang Q, Liang P, Yuan H, Cui L. Comparative Toxicity and Joint Effects of Chlorantraniliprole and Carbaryl Against the Invasive Spodioptera frugiperda (Lepidoptera: Noctuidae). JOURNAL OF ECONOMIC ENTOMOLOGY 2022; 115:1257-1267. [PMID: 35716076 DOI: 10.1093/jee/toac059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Indexed: 06/15/2023]
Abstract
Fall armyworm, Spodoptera frugiperda, is one of the most devastating invasive pests in China. Chlorantraniliprole (CH) is currently the main agent for controlling S. frugiperda. Carbaryl (CA) has been widely used as a foliar treatment to control S. frugiperda, although the pest has become highly resistant to it. This study investigates the comparative toxicity and joint effects of CH and CA on S. frugiperda. Time-toxicity results showed that CH had high toxicity to 1st and 3rd instar larvae, whereas CA had very low toxicity to 1st and 3rd instar larvae. The mixtures of CH and CA at different mass ratios showed strong synergistic effects on toxicity, and the mass ratio of 2:1 exhibited the highest toxicity to S. frugiperda. Furthermore, the synergistic toxicity of CH and CA at the 2:1 mass ratio (CH+CA) was also verified in field populations of S. frugiperda. The life-history parameters showed that CH+CA dramatically decreased the survival rate and fecundity of the parent population (F0) compared with CH treatment at the same concentration. Besides, CH and CH+CA mixture showed induction effect on cytochrome P450s and glutathione-S-transferases (GSTs) activities in S. frugiperda, with cytochrome P450s enzyme responding the fastest. In conclusion, this research found CH+CA provided synergistic effects on the toxicity and the sublethal effect on larvae. The joint effects on the life-history parameters and the detoxifying enzymes in S. frugiperda, may be useful for implementing IPM programs against this Lepidoptera pest.
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Affiliation(s)
- Qinqin Wang
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing, China
- Department of Entomology, China Agricultural University, Beijing, China
| | - Changhui Rui
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Li Wang
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Weiling Huang
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Junshu Zhu
- College of Plant Protection, Fujian Agriculture and Forestry University, Fujian, 350002, China
| | - Xuejiao Ji
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Qingjie Yang
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Pei Liang
- Department of Entomology, China Agricultural University, Beijing, China
| | - Huizhu Yuan
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Li Cui
- Key Laboratory of Integrated Pest Management in Crops, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing, China
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Sun B, Zhu G, Xie X, Chai A, Li L, Shi Y, Li B. Double Mutations in Succinate Dehydrogenase Are Involved in SDHI Resistance in Corynespora cassiicola. Microorganisms 2022; 10:microorganisms10010132. [PMID: 35056581 PMCID: PMC8779870 DOI: 10.3390/microorganisms10010132] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 12/31/2021] [Accepted: 01/04/2022] [Indexed: 02/05/2023] Open
Abstract
Simple Summary With the application of fungicide in agriculture, resistance to fungicide has become a serious problem. It is important to assess the evolution of resistance for development of disease prevention and control. We confirmed, by site-directed mutagenesis, that single mutations conferring moderate or low resistance are more likely to evolve into double mutations conferring higher resistance under the selective pressure of SDHI. However, the double mutations suffer large of fitness penalty than single mutation. We recommend that the use of SDHI in agriculture should be appropriately reduced or that other types of fungicides should be used to control plant diseases, such as dicarboximide fungicides (DCFs), to avoid the emergence of very resistant plant pathogens. Abstract With the further application of succinate dehydrogenase inhibitors (SDHI), the resistance caused by double mutations in target gene is gradually becoming a serious problem, leading to a decrease of control efficacy. It is important to assess the sensitivity and fitness of double mutations to SDHI in Corynespora cassiicola and analysis the evolution of double mutations. We confirmed, by site-directed mutagenesis, that all double mutations (B-I280V+D-D95E/D-G109V/D-H105R, B-H278R+D-D95E/D-G109V, B-H278Y+D-D95E/D-G109V) conferred resistance to all SDHI and exhibited the increased resistance to at least one fungicide than single point mutation. Analyses of fitness showed that all double mutations had lower fitness than the wild type; most of double mutations suffered more fitness penalties than the corresponding single mutants. We also further found that double mutations (B-I280V+D-D95E/D-G109V/D-H105R) containing low SDHI-resistant single point mutation (B-I280V) exhibited higher resistance to SDHI and low fitness penalty than double mutations (B-H278Y+D-D95E/D-G109V) containing high SDHI-resistant single mutations (B-H278Y). Therefore, we may infer that a single mutation conferring low resistance is more likely to evolve into a double mutation conferring higher resistance under the selective pressure of SDHI. Taken together, our results provide some important reference for resistance management.
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