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高效、低毒和低残留是衡量新农药的经济价值标准。目前,国际上高效、低毒、低残留农药的主要来源的研究方面已趋向化学合成的植物性农药,如具有光稳定的拟除虫菊酯类, 在现在合成的20余种中有5～6种已投入商品化广泛地使用,其杀虫活性都比一般有机氯、有机磷等杀虫剂大得多,有的每亩只用1克或不超过1克,毒性小,对环境污染较小或不污染环境。我国于1975年由江苏省农药研究所合成的10％二氯苯醚菊酯是化学合成的拟除虫菊酯的一种,经过几年来对各种作物害虫的防效测定,大多数有较好的效果,对人畜毒性低、无残留。
High efficiency, low toxicity and low residue are the economic value of new pesticides. At present, the researches on the main sources of highly efficient, low-toxic and low-residue pesticides in the world have tended to be chemical synthetic botanical pesticides, such as photostable pyrethroids. Among the currently more than 20 kinds of synthetic pesticides, 5 to 6 Has been put into commercial use widely, its insecticidal activity than the average organic chlorine, organic phosphorus and other pesticides much larger, and some only 1 gram per acre or less than 1 gram, less toxicity, less environmental pollution Or do not pollute the environment. China in 1975 by the Jiangsu Provincial Institute of pesticides synthesized 10% permethrin is a chemical synthesis of pyrethroids, after several years of detection of various pests on the control effect, most have better Effect, low toxicity to humans and animals, no residue.