4种药剂对绿黄枯叶蛾的林间药效试验

Forest Efficacy Trials of Four Insecticides Against Trabala vishnou

为控制绿黄枯叶蛾对林分的危害,采用4种药剂对绿黄枯叶蛾幼虫进行了林间药效试验。结果表明:药后5 d,40%氯虫·噻虫嗪水分散粒剂对绿黄枯叶蛾幼虫表现出很好的杀虫效果,其中1500倍液药剂效果最佳,对幼虫的校正死亡率为98.2%;5%甲维盐微乳剂对幼虫的杀虫效果次之,1000倍液药剂对幼虫的校正死亡率为92.8%。

To control the harm of Trabala vishnou to the stand,the forest efficacy trials of four insecticides against Trabala vishnou larvae were carried out.The results indicated as follows:at five days after the drug,40%Chlorantraniliprole·Thiamethoxam WG showed a good insecticidal effect on the Trabala vishnou larvae,in which the insecticide with 1500 times liquid possessed the best effect,and the adjusted mortality rate was 98.2%;the insecticidal effect of 5%Emamectin benzoate ME on the larvae was the second,and the adjusted mortality rate was 92.8%with 1000 times liquid.