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抗药性是生物界的一种普遍现象,从昆虫的遗传变异来讲,长期使用一种化学农药,最终必将使昆虫产生抗药性。赤眼蜂的大量繁殖和利用,对害虫的防治、减少化学农药对环境的污染、降低害虫的防治成本,已经开辟了广阔的前景,深受人们欢迎。如果赤眼蜂对杀虫剂产生抗性,对协调生物防治和化学防治,必将带来更为良好效果。本试验从1983年6月开始至1985年10月的两年半时间里,用8种杀虫剂对稻螟赤眼蜂卵、蛹和成虫三个发育期分别进行连续处理。探讨赤眼蜂抗性品系培育方法和初步阐明那些药剂对赤眼蜂较易形成抗性,为害虫综合防治提供更为光明的前途。
Resistance is a common phenomenon in the biological world, from the genetic variation of insects, the long-term use of a chemical pesticide, will eventually make insects resistant. Trichogramma multiplication and utilization, the prevention and treatment of pests, reduce the pollution of chemical pesticides on the environment and reduce the cost of pest control, has opened up a broad prospect, by the people. Trichogramma if the insecticide resistance, to coordinate biological control and chemical control, will bring more good results. This experiment from June 1983 to two years and a half in October 1985, with eight kinds of insecticides on the Trichogramma ostriniae eggs, pupae and adults of three developmental stages were treated separately. To explore the method of cultivating Trichogramma resistance strains and to preliminarily elucidate those agents that are more susceptible to Trichogramma formation and provide a brighter future for pest integrated control.