在美国、欧洲和世界上其他许多地方,一股从昆虫综合治理计划中减少化学杀虫剂使用的压力正在不断地增强。其主要原因是:害虫产生抗性,天敌消失和自然生态系统的破坏。公众担心由于化学杀虫剂的不断使用,残留的有害物质会进一步污染环境,尤其是对食品和水源。尽管这些忧虑常常并不正确,但是毫无疑问,这些公众意见促成了一系列限制农药应 In the United States, Europe and many other parts of the world, there is increasing pressure to reduce the use of chemical pesticides from integrated insect control programs. The main reasons are: pest resistance, disappearance of natural enemies and destruction of natural ecosystems. The public fears that residual harmful substances will further pollute the environment, especially food and water, due to the continuous use of chemical pesticides. Although these worries are often not correct, there is no doubt that these public opinions have led to a series of restrictions on pesticide