杨毒蛾为杨树的主要食叶害虫之一,在我国北方各省均有分布。常给林业生产带来灾害性的损失。例如:商都县,1964年杨毒蛾大发生,蔓延14个公社,危害面积达5万余亩,被害严重的林分,树叶全部被吃光。过去对杨毒蛾多采用化学防治,但效果不理想,为探索生物防治途径,1982年我们在西乌旗 As one of the main leaf-eating pests of poplar, the poisonous moth is distributed in every province of northern China. Often bring disaster losses to forestry production. For example: Shangdu County, 1964, the large occurrence of the poisonous thorn moth, the spread of 14 communes, endanger an area of ​​more than 50000 acres, severely damaged forest, leaves all eaten. In the past on the poisonous moth more chemical control, but the effect is not satisfactory, in order to explore biological control methods, in 1982 we in West Wu Qi