4种农药在飞机防治马尾松毛虫上的应用

Use of 4 Kinds of Pesticide in the Control of Dendrolimus punctatus

梅州市应用运五B(D)型飞机进行超低容量喷洒生物农药绿得宝、白僵菌、苏云金杆菌和仿生农药灭幼脲Ⅲ号防治马尾松毛虫,经3年来的跟踪调查,结果表明,4种农药在适宜的条件下均能取得较好的防治效果。4种药物按各自防治面积加权,3年平均校正死亡率分别为绿得宝89.2%、白僵菌76%、灭幼脲66.5%、苏云金杆菌62.1%。

By used of Yun5 B （D） plane, Ludebao, Dimilin Ⅲ, Beauveria bassiana and Bacillus thuringiensis were used to control Dendrolimus punctatus in Meizhou city. The result showed that all kinds of pesticide had good work in feasible condition. 4 kinds of pesticide death rate are Ludebao 89.2%, Beauveria bassiana 76%, Dimilin Ⅲ 66.5%, Bacillus thuringiensis 62.1%.