木(?)尺蠖(Culcula Panterinaria)是刺槐林的主要食叶害虫之一,在我省广为分布。该虫繁殖系数高,为害期集中,常骤发成灾。幼虫食性杂,危害多种树木和农作物,(达百余种)。一九七九年沂南县北大山林场和临朐县沂山林场,几千亩刺槐林木(?)尺蠖大发生,暴发后期,尺蛾幼虫出现大量死亡现象。我们对导致害虫死亡的病原进行了形态研究和毒力测试,现将初步结果汇总于下。 Culcula Panterinaria is one of the major leaf-eating pests in the locust forest and is widely distributed in our province. The insect reproductive coefficient is high, the concentration of harmful period, often sudden disaster. Larva feeding habits, endangering a variety of trees and crops, (up to a hundred species). In 1979, the Beida Forest Farm in Yinan County and the Yishan Forest Farm in Lintao County, where thousands of acres of Robinia pseudoacacia trees were found, occurred in large scale. After the outbreak, there were a large number of deaths of the moth larvae. We conducted morphological studies and virulence tests on the pathogens that led to the death of pests, and the preliminary results are now summarized below.