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若在田间大量、单一地施用杀虫剂,会使害虫产生抗药性。如能利用农药混配施用,能克服害虫的抗药性,有效地抑制抗性发展,还能兼治其它害虫,扩大防治对象,节省用药劳力,降低成本等优点。目前作物上的螨害和虫害日趋严重,从田间调查情况看,虫、螨往往混合发生为害。杀虫谱广,效果好的杀灭菊酯一类的杀虫剂也只能治虫不能治螨,且长期使用对一些害虫已产生抗药性,而杀螨剂又只能治螨不能治虫,因此针对当前生产上的问题,为达到虫螨兼治的目的,上海市农科院植保所农药室
If large amounts of pesticides are applied singly in the field, pests will develop resistance. If we can use pesticide mixed with pesticides to overcome the resistance, effectively inhibit the development of resistance, but also to cure other pests, to expand prevention and control targets, saving labor, reduce costs and so on. At present, mites and pests on crops are becoming more and more serious. According to field investigation, insects and mites are often mixed and harmful. Pesticide broad spectrum, good effect of fenitrothion insecticide can only cure insects can not cure mites, and long-term use of some pests have emerged resistance, and acaricides can only cure mites can not cure insects, therefore In response to the current production problems, in order to achieve the purpose of treating both acarids and mites, the Shanghai Academy of Agricultural Sciences Pesticide Protection Plant