草履蚧若虫对不同定植年份灰毡毛忍冬的危害情况调查及防治药剂筛选

摘要

According to the harmfulness investigation and pesticide prevention on Drosicha corpulenta nymph in different planting years of Lonicera macranthoides,the different control measure was developed against D. corpulenta. For the planting one-year seedling, the results showed that the control measure were spraying 1500 times dilute solution,which contain 2.5﹪Lambda-cyhalothrin microemulsion 1 g. Or spraying the mixture contains 20﹪ fenpropathrin EC,45﹪ Lorsban EC and water with the volume ratio was 1:0.45:2000. For the planting four-year seedling,the best control measure was daubing a circle with a brush on the base of trunk with the solid oil mixture,which contain 45﹪ chlorpyrifos EC 1 g and the waste solid oil 900 g.%根据草履蚧(Drosicha corpulenta)若虫对不同定植年份灰毡毛忍冬(Lonicera macranthoides Hand)植株的危害情况及药剂筛选结果,制定出防治措施.对于定植1年出现草履蚧虫害的灰毡毛忍冬植株,采用2.5﹪高效氯氟溴菊酯微乳剂1500倍稀释液、20﹪甲氰菊酯乳油:45﹪乐斯本乳油:水=1:0.45:2000(体积比)喷雾进行药剂防治.对定植4年的灰毡毛忍冬植株,使用废弃机油:45﹪乐斯本乳油=900:1,采用干基涂环的方法进行防治.