喜树幽斑螟防治技术研究

喜树幽斑螟是喜树的一种新害虫。该虫的综合防治应以生物防治为基础。试验表明,复合生物杀虫剂对幼虫有良好防治效果,低龄幼虫盛发期可喷洒Bt-8010　1-2×109孢子·ml-1+白僵菌1-2×108孢子·ml-1+80%DDVP1/20000;冬季树干涂白也有良好防治效果。

Study on the Control Techniques of Pyla Sp.

Pyla Sp.is a species of new injurious insect.The comprehensive control of this insect should be on the basis of the biological control.The experiment indicates that the complex microbic insecticide has a good control effect on the larvae and the Bt 8010 1 2×10 9 spores·ml -1 +Beauveria bassiana 1 2×10 8 spores·ml -1 +80% DDVP 1/20000 can be sprayed during the occurrence of numerous low instar larvae.Applying the white paint to the stems in winter also possesses a good control effect.