美国白蛾是一种世界性的检疫害虫。1979年在我国辽宁省丹东地区发现后,随后相继又在大连市、山东、陕西、甘肃等省市的局部地区发生,有些甚至危害成灾。鉴于美国白蛾初发地区多在交通要道和村庄院落的树木上,使用剧毒农药对人畜不安全。因此,我们选用了对环境污染少、对人畜安全的灭幼脲,于1985年7-9月对美国白蛾卵、幼虫的生物活性和杀成效果进行了试验。现将初步结果整理如下。 American white moth is a worldwide quarantine pest. After it was discovered in Dandong, Liaoning Province in 1979, it was successively found in some areas of Dalian, Shandong, Shaanxi and Gansu Provinces in succession, and some of them even endangered the disaster. In view of the initial occurrence of the United States moth moths in the traffic arteries and trees of the courtyard of the village, the use of highly toxic pesticides on humans and animals is not safe. Therefore, we chose biuret, which is less polluting and less harmful to human beings and animals, and tested the biological activity and killing effect of American white moth eggs and larvae from July to September in 1985. The preliminary results are now organized as follows.