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除虫精(氯菊酯、二氯醚菊酯、Permet-nrin、NRDC—143)首次由英国合成(Elliott,1973),国内由江苏省农药所研制成功(1975),上海联合化工厂已通过中试鉴定(1983)。锦州市农科所筛选出低含量0.04%除虫精粉(1981),经上海联合化工厂热稳定试验,认为可贮藏二年,有效成分无显著变化(1983)。1983年锦州市除虫精粉防治粘虫协作组在锦州、阜新、大连、赤峰、营口、朝阳、辽阳等市(地),防治粘虫等农业害虫试验示范面积58.4万亩,效果显著。一、试验方法施药工具为人工手提纱布袋和东方红18型
Pest repellent (Permethrin, Permethrin, NRDC-143) was first synthesized in the United Kingdom (Elliott, 1973) and was successfully developed in China by Jiangsu Provincial Pesticide (1975). The Shanghai United Chemical Plant has passed Pilot test (1983). Jinzhou Agricultural Science and Technology Institute selected a low content of 0.04% demetonase (1981), the Shanghai United Chemical Plant thermal stability test, that can be stored for two years, no significant change in the active ingredient (1983). In 1983, the team of Jinzhou, Fuxin, Dalian, Chifeng, Yingkou, Chaoyang, Liaoyang and other cities (prefectures) to control pests and insect pests in Jinzhou City collaborated on the control of armyworm and insect pests with 58.4 million mu of pests and had remarkable results. First, the test method Application of artificial hand-held gauze bag and the East 18 red type