白背飞虱对稻田常用杀虫剂的敏感性测定  

Sensitivity of Sogatella furcifera (Horváth) to Frequently-used Insecticides in Rice Field

作　　者：刘磊磊[1] 杨洪[1] 金道超[1] 

机构地区：[1]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

出　　处：《农药》2015年第3期227-230,共4页Agrochemicals

基　　金：贵州省农业科技攻关项目[黔科合NY字(2013)3006];贵州省农业科技攻关项目[黔科合NY字(2010)3064];贵州省教育厅自然科学研究项目(黔教2010011)

摘　　要：[目的]指导白背飞虱的田间防治用药。[方法]采用稻茎浸渍法测定。[结果]吡虫啉、噻虫嗪、三唑磷、毒死蜱、溴氰菊酯、氰虫酰胺、阿维菌素、吡蚜酮、噻嗪酮对白背飞虱3龄若虫的毒力(LC50)分别为0.863 7、0.721 6、13.627 0、6.069 0、18.965 4、9.734 6、4.818 6、12.140 1、0.628 9 mg/L,这9种杀虫剂对白背飞虱成虫的毒力(LC50)分别为1.225 5、0.958 9、16.512 6、3.651 4、22.126 9、10.940 7、5.571 4、13.117 7、0.945 2 mg/L。[结论]吡虫啉、噻虫嗪和噻嗪酮对白背飞虱相对毒力极高。若虫和成虫对同种药剂敏感度无显著差异。[Aims] The study aims to provide references for field control of Sogate lla furc ifera（Horváth）. [Methods] Rice stem impregnation method was conducted in this study. [Results] The results showed that the toxicity LC50 of imidacloprid, thiamethoxam, triazophos, chlorpyrifos, deltamethrin, cyantraniliprole, abamectin, pymetrozine and buprofezin to the third instar nymphs of WBPH were 0.863 7, 0.721 6, 13.627 0, 6.069 0, 18.965 4, 9.734 6, 4.818 6,12.140 1 and 0.628 9 mg/L, respectively. The LC50 values to adults were 1.225 5, 0.958 9, 16.512 6, 3.651 4, 22.126 9,10.940 7, 5.571 4, 13.117 7 and 0.945 2 mg/L, separately. [Conclusions] The relative toxicity of imidacloprid,thiamethoxam and buprofezin to Sogatella furcifera（Horváth） was highest. The sensitivity of the identical insecticide to the third instar nymphs and adults of WBPH had no significant variation.

关 键 词：白背飞虱 杀虫剂 稻茎浸渍法 毒力测定 

分 类 号：S435.112.3[农业科学—农业昆虫与害虫防治]