不同施药技术对蛀干害虫的防效比较试验

Effects of different methods on trunk-borers

比较了根部施药、钻孔注药、插药瓶、挂药袋以及从虫孔注入药液和药膏等方法对蛀干害虫的防效。挂药袋仅对孵化初期的臭椿沟眶象防效较好,从虫孔注入药液对向下或上下串食的害虫防效较好,SGY药膏对向各种方向蛀食的害虫防效均高于90.0%,其他方法防效较差。

The control efficacies of different methods including mot application, drilling hole application, inserting pesticide bottles, hanging pesticide bags, injecting pesticide in worm holes to trunk- borers were studied. The result showed that the control efficacy of hanging pesticide bags was the best only to the early hatching Eucryptorrhynchus brandti. Injecting pesti- cide liquid in worm holes was suitable for controlling pest boring from up to down or up and down while injecting pesticide paste in worm holes was suitable for controlling pest boring in any direction with an over 90% control effect. However, the control effects of other methods were worse.