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

作     者：Chen Min Wang Feipeng Huang Xiangzhu Huang Enjiong 

作者机构：Fujian International Travel Healthcare Center Fuzhou 350001 China Key Laboratory of Biopesticide and Chemical Biology Ministry of Education Fujian Agriculture and Forestry University Fuzhou 350002 China Sanming Entry-Exit Inspection & Quarantine Bureau Sanming 365000 China 

出 版 物：《Plant Diseases and Pests》 (植物病虫害研究（英文版）)

年 卷 期：2017年第8卷第1期

页      面：1-4,14页

学科分类：090403[农学-农药学(可授农学、理学学位）] 09[农学] 0904[农学-植物保护] 

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) 

主　　题：Culicoides oxystoma Insecticide Toxicity 

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.