Toxicity of Five Insecticides to Culicoides oxystoma Kieffer (Diptera:Ceratopogonidae)  

作　　者：Chen Min Wang Feipeng Huang Xiangzhu Huang Enjiong 

机构地区：[1]Fujian International Travel Healthcare Center, Fuzhou 350001, China [2]Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China [3]Sanming Entry-Exit Inspection & Quarantine Bureau, Sanming 365000, China

出　　处：《Plant Diseases and Pests》2017年第1期1-4,14,共5页植物病虫害研究（英文版）

基　　金：Supported by Key Science and Technology Project of Fujian Province(2014I0001);Science and Technology Plan of General Administration of Quality Supervision,Inspection and Quarantine of China(AQSIQ)(2015IK036)

摘　　要：Field-collected Culicoides oxystoma adults were exposed to different concentrations of commercial insecticides including chlorpyrifos, DDVP, deltamethyrin, beta-cypermethrin and beta--cypermethrin · emamectin benzoate via filter paper method, to determine toxicity of different insecticides on C. oxystoma. Results showed that toxicities varied significantly among insecticides. Biting midges were the most susceptible to deltamethyrin （0. 060 mg/L）, followed by chlorpyrifos （0. 588 mg/L）, beta-cypermethrin （ 1. 741 rag/L）, beta-cypermethrin · emamectin benzoate （99.670 mg/L）, and DDVP （600. 496 mg/L）. After exposed to insecticides for 1 h, tested midges were transferred to recovery chamber and observed for another 24 h ; increased mortality within this period was different under different concentrations of each insecticide. Relative toxicity index of dehamethrin was maximal when used as the standard reagent.Field-collected Culicoides oxystoma adults were exposed to different concentrations of commercial insecticides including chlorpyrifos, DDVP, deltamethyrin, beta-cypermethrin and beta--cypermethrin · emamectin benzoate via filter paper method, to determine toxicity of different insecticides on C. oxystoma. Results showed that toxicities varied significantly among insecticides. Biting midges were the most susceptible to deltamethyrin （0. 060 mg/L）, followed by chlorpyrifos （0. 588 mg/L）, beta-cypermethrin （ 1. 741 rag/L）, beta-cypermethrin · emamectin benzoate （99.670 mg/L）, and DDVP （600. 496 mg/L）. After exposed to insecticides for 1 h, tested midges were transferred to recovery chamber and observed for another 24 h ; increased mortality within this period was different under different concentrations of each insecticide. Relative toxicity index of dehamethrin was maximal when used as the standard reagent.

关 键 词：Culicoides oxystoma INSECTICIDE TOXICITY 

分 类 号：S482.3[农业科学—农药学]