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、13.1177、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.
Abstract
[Aims] The study aims to provide references for field control ofSogatellafurcifera (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 Sogatellafurcifera (Horváth) was highest.The sensitivity of the identical insecticide to the third instar nymphs and adults of WBPH had no significant variation.
基金项目
贵州省农业科技攻关项目(黔科合NY字20133006)
贵州省农业科技攻关项目(黔科合NY字20103064)
贵州省教育厅自然科学研究项目(黔教2010011)
NETL
NSTL
维普
万方数据