几种杀虫剂对杨树食叶害虫的防治效果评价

Effects of several insecticides on the control of poplar leaf-eating pests

摘要: 为筛选出防治杨树食叶害虫的高效低毒杀虫剂,降低食叶害虫危害,保障林业的健康可持续发展,试验选取0.5%苦参碱水剂、10%虫螨腈悬浮剂、25%灭幼脲悬浮剂和8%氯氰菊酯悬浮剂4种杀虫剂,在林间条件下,对比分析了4种杀虫剂对杨树食叶害虫的防治效果。结果表明,供试4种杀虫剂对杨树食叶害虫均有一定的防治效果,以0.5%苦参碱水剂效果最佳。在施药后7d时,施用0.5%苦参碱水剂的杨树食叶害虫的虫口减退率为96.7%、防治效果达到96.27%。因此,0.5%苦参碱水剂可在杨树食叶害虫的防治中推广应用。

Abstract: In order to screen out the effective and low toxic insecticides for the control of poplar leaf-eating pests, reduce the harm of leaf-eating pests, and ensure the healthy and sustainable development of forestry, four insecticides, 0.5% matrine water, 10% acaronitrile suspension, 25% fenuron suspension and 8% cypermethrin suspension, were selected in the experiment. The control effects of four insecticides on poplar leaf-eating pests were compared and analyzed. The results showed that all the four insecticides had certain control effects on poplar leafeating pests, and 0.5% matrine water had the best effect. At 7 days after application, the reduction rate of the poplar leaf-eating pests was 96.7% and the control effect was 96.27%.Therefore, 0.5% matrine water is widely used in the control of poplar leaf-eating pests.