甘兰夜盗虫是吉林省甜菜的主要害虫之一。历年来各甜菜产区均有不同程度的发生。该虫在吉林省每年发生两代,以第二代危害为重。被害严重的地块,叶片全被吃光,甚致将根头啃成孔洞。据1982年在白城地区调查,平均降低含糖2.31度。过去,生产上多用六六六、DDT、甲胺磷等农药防治,对控制该虫的发生起到了一定作用。但由于有机氯农药已停止生产,有机磷农药多属剧毒,对人畜很不安全。为此,我们在新农药筛选的基础上,根据国内外资料信息,开展了对应用灭幼脲Ⅲ号防治 Cabbage night bug is one of the major pests of sugar beet in Jilin Province. Over the years the beet producing areas have varying degrees of occurrence. The pest occurs in Jilin Province every year for two generations, taking the second generation harm as the most important. Victims of serious plots, leaves all eaten, it will even rooted into holes. According to a survey conducted in Baicheng area in 1982, the average sugar content was 2.31 degrees lower. In the past, the use of 666, DDT, methamidophos and other pesticides for production control played a certain role in controlling the occurrence of the pest. However, because organochlorine pesticides have ceased production, organophosphorus pesticides are mostly highly toxic and are not safe to humans and animals. To this end, we based on the new pesticide screening, based on domestic and foreign information and information on the application of mefivluine III prevention and treatment