生物防治具有选择性强,对人畜无害,无残毒,不污染环境等优点。生物防治通常是利用寄生昆虫和食虫昆虫,病原微生物以及引诱剂和激素杀死害虫。一、菌剂的利用苏联从发病和死亡的苹小卷叶蛾幼虫体内分离出黄曲霉、短帚霉和白僵菌,制 Biological control with selective, harmless to humans and animals, no residual poison, do not pollute the environment and so on. Biological control is usually the use of parasitic insects and insect-eating insects, pathogenic microorganisms and attractants and hormones kill pests. First, the use of fungicides The Soviet Union from the onset and death of the apple leaf roller larvae isolated from the body of Aspergillus flavus, gilts and Beauveria bassiana, system