自从人类有机合成农药滴滴涕f应用以来，化学农药一直是农业生“上控制农作物病虫草鼠害的主要F段。近年来随着我国农业生产综合主术的提高，农药的施用量也是越来塞多。目前，我国每年约使用近50万屯各种农药，市场供应的农药有，500多种。其中杀虫剂约占55％；8＄剂约占25％ Since the application of DDT, a pesticide for human organic synthesis, chemical pesticides have been the main F segment controlling pests, diseases and mice in agricultural crops. In recent years, with the improvement of comprehensive main technique of agricultural production in our country, At present, nearly 500,000 pesticides are used in our country each year, and there are over 500 kinds of pesticides on the market, of which about 55% are pesticides and about 25%