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目前世界各国在防治农、林害虫时,普遍提倡采用综合治理的方针,其中生物防治作为一种日渐受到重视的手段和方法,已形成一专门的学科。所谓生物防治是指利用生物或其产物控制作物病虫害和杂草,最直接的是利用有捕食性或寄生性的动物如两栖类、鸟类、蜘蛛、昆虫、线虫和捕食螨等消灭害虫,其他的利用技术和手段还有以辐射、化学和遗传等方法造成昆虫不育,利用昆虫性外激素、昆虫内激素、噬菌体、内疗素和植物抗性等防治害虫。可以说,它与生态学、生物学、分类
At present, all countries in the world generally advocate the principle of comprehensive management in the prevention and control of pests of agricultural and forest pests. Biological prevention and control, as a method and method of increasing attention, has formed a special discipline. The so-called biological control refers to the use of biological or its products to control crop pests and weeds, the most direct use of predatory or parasitic animals such as amphibians, birds, spiders, insects, nematodes and predatory mites eliminate pests and other The use of technology and methods as well as radiation, chemical and genetic methods of infertility caused by insects, the use of sex hormones, insects hormones, bacteriophages, endothelin and plant resistance and other pest control. It can be said that it is related to ecology, biology, classification