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引言有机氯杀虫剂“六六六”在目前还是我国生产的主要农药,占农药总产量50％以上。“六六六”对昆虫不仅有强烈的触杀作用,而且胃毒作用也很强,还有一定的熏蒸和内吸作用。由于其优越的杀虫效果,为农作物获得高产、稳产起了一定的保证作用,深受贫下中农的欢迎。从我省使用“六六六”防治水稻螟虫的情况来看,一九五九年我省嘉兴地区销售“六六六”制剂4055吨,水稻田足量施用“六六六”后,全专区螟害率压低到1％。一九六
Introduction Organochlorine pesticide “BHC” is still the main pesticide produced in China, accounting for more than 50% of the total pesticide output. “BHC” insects not only have a strong contact effect, but also very strong stomach poisoning, there are certain fumigation and systemic action. Because of its superior insecticidal effect, the crop yields high yield and stable yield play a certain role in ensuring, by the poor middle peasants welcome. From the situation of using “BHC” in our province to control rice stem borers, in 1959, 4055 tons of “BHC” preparations were sold in the Jiaxing area in our province, and after the adequate application of “BHC” in paddy fields, Pest damage rate down to 1%. One nine six