7种杀虫剂对烟蚜的毒力测定  

Toxicity of Seven Insecticides to Myzus persicae

作　　者：桂子萌 曾庆会 杨宇[1,2] 韦治艳 杨洪 杨茂发 GUI Zimeng;ZENG Qinghui;YANG Yu;WEI Zhiyan;YANG Hong;YANG Maofa(College of Agriculture,Guizhou University,Guiyang 550025,China;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)

机构地区：[1]贵州大学农学院,贵阳550025 [2]贵州大学昆虫研究所,贵州山地农业病虫害重点实验室,贵阳550025 [3]贵州大学烟草学院,贵阳550025

出　　处：《植物医学》2022年第2期53-58,共6页Plant Health and Medicine

基　　金：大学生创新创业训练计划项目“贵州省茄科蔬菜主要蚜虫的抗药性研究”(2020055);贵州省山地生态烟叶无人机应用研究与示范(中烟黔科201934)。

摘　　要：烟蚜是危害烟草的主要害虫之一,为寻找防治烟蚜的高效低毒药剂,本文采用浸叶法和浸渍法比较了藜芦碱、吡虫啉、啶虫脒、噻虫嗪、吡蚜酮、除虫菊素和双丙环虫酯7种药剂对烟蚜的毒力.结果表明,浸叶法处理后,噻虫嗪和吡虫啉对烟蚜的毒力较高,LC_(50)值分别为2.220 mg/L和2.619 mg/L;而浸渍法处理后吡虫啉和藜芦碱对烟蚜的毒力较高,LC_(50)值分别为1.203 mg/L和2.554 mg/L.吡虫啉在两种不同处理方法的试验中都显示对烟蚜有较高毒力,可以作为防治田间烟蚜的推荐使用药剂,在吡虫啉被限制使用的情况下,可选用噻虫嗪或藜芦碱防治烟蚜。研究结果可为烟蚜的有效防治提供科学的参考依据.Myzus persicae is one of the main pests that harms tobacco.In order to search for high efficiency and low toxicity agents for the control of M.persicae,the toxicity of veratrine,imidacloprid,acetamiprid,thiamethoxam,pymetrozine,pyrethrin and dipropyl cycloester against M.persicae was compared by leaf-dip and immersion methods.The results showed that thiamethoxam and imidacloprid had relatively high toxicity to M.persicae with LC_(50)values of 2.220 mg/L and 2.619 mg/L,respectively,in leaf-dip treatment.In immersion treatment,the toxicity of imidacloprid and veratrol to M.persicae was relatively high with LC_(50)values of 1.203 mg/L and 2.554 mg/L,respectively.Imidacloprid showed high toxicity to M.persicae in two different treatments,which could be used as a recommended agent for the control of M.persicae in the field.The results can provide scientific reference for the effective control of aphid.

关 键 词：杀虫剂 烟蚜 浸叶法 浸渍法 毒力测定 

分 类 号：S482.3[农业科学—农药学] S572[农业科学—植物保护]