生物对药剂产生抗性是生物有机体的基本特性之一。只要施用药剂就不可避免产生抗性。所谓“第三代农药”,例如保幼激素、不育剂,甚至于苏云金杆菌毒素等微生物农药,均有出现抗药性的报导。最近十余年来,除害虫产生抗药性外,病原真菌的抗性也在田间不断出现,杂草的抗药性,以至于 Biological resistance to chemicals is one of the basic characteristics of biological organisms. As long as the application of the agent will inevitably produce resistance. The so-called “third-generation pesticides,” such as juvenile hormones, infertility agents, and even microbial microbial pesticides such as Bacillus thuringiensis, there have been reports of resistance. In the recent ten years, besides the resistance of pests, the resistance of pathogenic fungi is constantly emerging in the field. The weed resistance is so great that