美国白蛾(Hyphantria cunea Drury)是世界性重要检疫害虫,1979年6月在我省丹东地区首次发现。据调查,寄主有50余种,主要危害林木。通过野外调查和室内饲养发现幼虫大批自然死亡,检查确定为核型多角体流行病。将病毒接种于饲料添饲幼虫,验证幼虫发生了核型多角体病。为探讨美国白蛾生防途 Hyphantria cunea Drury is an important quarantine pest in the world. It was first discovered in Dandong of our province in June 1979. According to the survey, there are more than 50 host species, the main hazard to trees. A large number of larvae were found dead by natural investigation and indoor rearing, and the test was confirmed as karyotype polyhedrosis. The virus was inoculated on feed-fed larvae to verify that larvae developed nuclear polyhedrosis. In order to explore the American white moth health prevention way