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。
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.
作者
曹志强
CAO Zhiqiang(Tuoeryuan Forest Farm,Heshui Branch of Ziwuling Forestry Administration,Qingyang 745412,China)
出处
《林业建设》
2021年第2期46-50,共5页
Forestry Construction
关键词
杀虫剂
杨树
食叶害虫
防治效果
Insecticide
poplar
leaf-eating pests
Control effect
作者简介
曹志强,男,高级工程师,主要从事林业工程造林,中幼林抚育,林分改造,生态修复,苗木培育,病虫害防治,园林绿化等方面的工作。
