银纹夜蛾(Plusia agnata Staudinger)是大豆主要食叶害虫,在泰安地区,历年约占大豆造桥虫总发生量的70%以上,且具有暴发暴食性,除大豆外,还为害白菜、甘蓝等十字花科蔬菜.1979年7月,发现室内饲养的银纹夜蛾幼虫有倒挂死亡的虫体,经鉴定是一种核型多角体病毒病,初步感染观察,对银纹夜蛾幼虫有相当强的感染致死力,且寄主专一性强.现将初步研究试验的情况报告如下. Plusia agnata Staudinger is the major leaf-eating pest of soybean. In Taian area, it accounts for more than 70% of the total occurrence of the bridge. In addition to soybeans, it also damages cabbage, cabbage And other cruciferous vegetables .1979 July and found indoors feeding Spodoptera litura larvae have upside down death of the worm, identified as a nuclear polyhedrosis virus disease, the initial infection observed on the Spodoptera louse larvae A very strong lethal effect of infection, and the host-specific. Now the preliminary study reports the following report.