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近半个世纪以来,由于化学有机合成科学技术的迅速进展,促进了农药的革命性变化。第二次世界大战期间问世的 D.D.T 和六六六,在防治动植物害虫方面起了很大的作用,由于其对环境和食物的污染和害虫对其抗性的逐渐积累,需要有新的、更有效的农药予以取代,于是剧毒有机磷内吸杀虫剂1605、1059和3911相继诞生。因其对人畜毒害极大,又有低毒有机磷制剂乐果、敌百虫等农药用于农业生产。几乎与上述农药兴起的同时,各式各样的内吸
Nearly half a century, due to the rapid progress of science and technology of organic-chemical synthesis, promoted the revolutionary change of pesticides. DDT and 666, which emerged during the Second World War, played a large role in the prevention and control of plant and animal pests. Due to their environmental and food contamination and the gradual accumulation of their resistance by pests, new, More effective pesticides to be replaced, so toxic organophosphorus insecticide 1605,1059 and 3911 have been born. Because of its great harm to humans and animals, there are low-toxic organophosphate dimethoate, trichlorfon and other pesticides for agricultural production. Almost with the rise of these pesticides at the same time, a wide range of internal absorption