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实践证明,化学农药治虫是当前农业保产的一项必要措施。化学农药从有机氯剂出现以后,有机磷和氨基甲酸酯相继问世,现在常用品种达300种以上,使用范围逐年扩大,年产量也逐年增长,对农业保产做出了巨大的贡献。1972年以后,光稳定性拟除虫菊酯接踵出现。这类杀虫剂除了对光稳定之外,治虫广谱,用药量少,治虫保产的同时又能增产,为其它杀虫剂所不及。法国罗素——优克福公司生产的溴氰菊酯就是其中之一,国外应用于防治农
Practice has proved that chemical pesticide pest control is currently a necessary measure for agricultural production. Since the emergence of organic pesticides, organic pesticides and carbamates have come out in succession. At present, more than 300 commonly used varieties of chemical pesticides are used. The scope of application has been expanded year by year, and the annual output has also increased year by year, making a great contribution to agricultural production. After 1972, photo-stable pyrethroids appeared one after another. In addition to light insensitivity to these insecticides, broad-spectrum control, medication, insects pestor at the same time yield, for other insecticides. One of them, deltamethrin produced by Russell-euphorb, is used in foreign countries