玉米铁甲虫是玉米生产的一大害虫,危害严重。1983年我们在历史虫区天等县以小区试验结合大田调查的方法,进行氰戊菊酯、杀虫双防治玉米铁甲虫的试验研究,初步结果为:1.杀虫双、氰戊菊酯对玉米铁甲虫幼虫和卵有较好杀伤作用。小区试验结果,杀虫双平均防效97.71％、氰戊菊酯平均防效92.73％;大田使用平均防效分别为90.5％和87.4％。但从经济、有效方面考虑,在生产上,以使用杀虫双400倍即每亩用量150毫升为宜,于卵孵化率 Corn iron beetle is a major pest of corn production, endangering serious. In 1983, we conducted a pilot study on fenvalerate and insecticidal double-control corn and iron beetle in Tian et al., A county in the history of insect pests in Tianxian County. The preliminary results were as follows: 1. Pesticides, fenvalerate On corn iron beetle larvae and eggs have a better killing effect. Community test results, insecticide double average control effect of 97.71%, fenvalerate average control effect of 92.73%; field control effect were 90.5% and 87.4%. However, from economic and effective aspects, in production, the use of insecticidal double 400 times that amount of 150 ml per mu is appropriate, the egg hatching rate