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二氯苯醚菊酯是一种优良的拟除虫菊酯类农药,它保持了除虫菊酯类农药的固有优点,又克服了易于光分解的缺点,成为一种既能防治卫生害虫,又能防治农业害虫的广谱性杀虫剂。在国内外受到很大重视,1975年江苏省农药研究所在国内首先试制成功。近几年来国内有关单位对其药效、毒性、毒理、残留等方面作了大量工作,资料证明二氯苯醚菊酯是兼备高效、低毒、低残留、广谱等优点的新型杀虫剂。它的杀虫效率高,比常用农药高出几倍至几百倍,而残留甚低,使用比较安全。农药施用后,除在作物上残留以外,在喷洒时必有一部分散落在土壤表层,且植株表面的农药受雨水等淋洗也将不断地进入土壤表层,在土壤中逐渐积聚。因此,土壤对农药的吸附性能和移动性能直接关系到土壤和环境污染的问题。1978～1979年我们用~(14)C标记的二氯苯醚菊酯,研究了它在土壤中的吸附性能和移动性能,以便为该农药在土壤环境中的安全性提供依据。
Permethrin is an excellent pyrethroid pesticide which retains the inherent advantages of pyrethroid pesticides and overcomes the disadvantages of being readily photodegradable and of being a pesticide that can both combat pests and control agriculture Broad-spectrum insect pests. At home and abroad received great attention, in 1975, Jiangsu Provincial Institute of pesticides in the first trial success. In recent years, relevant domestic units have done a lot of work on its efficacy, toxicity, toxicology and residues, etc. The data prove that Permethrin is a new insecticide with high efficiency, low toxicity, low residue and broad spectrum Agent. Its insecticidal efficiency, higher than the commonly used pesticides several times to several hundred times, while the residue is very low, the use of more secure. Pesticide application, in addition to residues on the crop, the spray must be part of the scattered in the soil surface, and plant surface pesticides by rain and other leaching will continue to enter the soil surface, the gradual accumulation in the soil. Therefore, soil adsorption and mobility of pesticides are directly related to soil and environmental pollution problems. From 1978 to 1979, we used ~ (14) C-labeled permethrin to study its adsorption capacity and mobility in soil so as to provide evidence for its safety in soil environment.