5%毒死蜱防治杨树苗期蛴螬药效分析

Efficacy Analysis of 5% Chlorpyrifos to Control Poplar Seedling Grubs

杨树苗期地下害虫较多,杨树虫害的防治是林业部门的一项基础工作,抓好杨树苗期虫害管理是杨树生长稳产、高产、优质的重要基石;通过施毒死蜱农药的方法对蛴螬采取了防治,试验结果显示每667 m^2施用8 kg毒死蜱农药为最佳施药剂量。

There are more underground pests in poplar seedlings, and so the prevention and cure of poplar pests is a basic task for forestry departments. It is an important task for the pest managements to do a good job in poplar seedling stage so as to create a qualified basis for the poplar growth, stable and high yield, and high quality as well. In order to prevent and control pests in poplar seedling stage effectively, this paper adopted 4 methods of processing the application of chlorpyrifos pesticide to control grubs. Test results showed that different pesticide treatment on poplar white grubs in the seedling stage was also effective, of which the effect of 120 kg/ha dosage in Treatment 4 was the best for controlling poplar seedling grubs.