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玉米螟,在浙江既是玉米的主要害虫,又是棉麻的一种重要害虫。在玉米上,我国于1950年开始利用药剂灌心叶防治玉米螟。1956～1958年原河北省沙岭子和唐山农业試驗站开始用6％丙体666粉混細土,以代替液剂灌心。1958年,河北、山东、山西等地部分群众采用666毒土或毒砂防治玉米螟,获得了良好的效果。上述用666粉剂拌土或砂,制成的毒土或毒砂,即为一种簡易的土顆粒杀虫剂。根据中
Corn borer, both major pests of corn in Zhejiang, but also an important insect pest of cotton. On maize, our country began to use chemical irrigating leaves to control corn borer in 1950. From 1956 to 1958, Shalingzi and Tangshan Agricultural Experimental Station in Hebei Province began to use 6% C 666 powder mixed fine soil instead of liquid filling heart. In 1958, some people in Hebei, Shandong, Shanxi and other places adopted the 666 poisonous soil or arsenopyrite control corn borer and achieved good results. The 666 powder mixed with soil or sand, made of toxic soil or arsenopyrite, that is a simple soil particle pesticide. According to