防治香蕉假茎象甲的常用药剂室内药效试验

摘要

采用虫体浸液法测定了17种常用杀虫剂对香蕉假茎象甲的室内药效，在参试的杀虫剂中，毒死蜱、丙溴辛硫磷、联苯菊酯、敌敌畏、三唑磷、甲氨基阿维菌素苯甲酸盐的效果较好，药后3d，防效分别达到100%、100%、86.97%、80.91%、80.00%。药后7d，药效较高的杀虫剂为联苯菊酯、敌敌畏、甲维盐、乙酰甲胺磷和甲维·丙溴磷，其中联苯菊酯和敌敌畏的药效分别为96.97%和80.91%，甲维盐、乙酰甲胺磷和甲维·丙溴磷的药效均为80.00%；辛硫磷、敌百虫、乐果、丁硫克百威、阿维菌素、鱼藤酮氰戊、吡虫啉、茚虫威、多杀霉素和高效氯氰菊酯等10种杀虫剂对香蕉假茎象甲的药效均较低。%Seventeen commonly used pesticides to the banana stem weevil (Odoiporus longicollis Olivier) were de⁃termined by the immersion method.The result showed that chlorpyrifos,profenofos phoxim,bifenthrin,dichlorvos,tri⁃azophos and emamectin benzoate had a better control efficiency.Their control efficiencies reached 100%,100%, 86.97%,80.91%,and 80% respectively three days later.Seven days later,the control efficiencies of bifenthrin,di⁃chlorvos,emamectin benzoate,acephate and emamectin benzoate profenofos were 96.97%,80.91% 80.00%,and 80.00% respectively,and they showed a better effect.But the efficiencies of phoxim,trichlorfon,dimethoate,carbosul⁃fan,avermectin,rotenone cyanide amyl,imidacloprid,indoxacarb,spinosad and beta-cypermethrin to the banana stem weevil were lower.