稀点雪灯蛾食性杂,主要危害玉米、棉花、花生、大豆、蔬菜等作物。近年来,该虫对麦套作物特别是麦套玉米的危害逐年加重。调查发现,本市井灌区麦套玉米因该虫危害一般被害株率为20%～30%,重者达80%以上,对夏玉米的高产稳产已构成较大威胁。一、发生规律稀点雪灯蛾在山东1年发生3代,以蛹越冬,成 Few snow moth feeding habits, the main hazards to corn, cotton, peanuts, soybeans, vegetables and other crops. In recent years, the pest to the wheat crop, especially wheat maize hazards increasing year by year. The survey found that wheat maize wells in the well irrigation area of ​​this pest damage rate of 20% to 30% of the total damage caused by the insects, weighing more than 80%, the high yield of summer maize has become a greater threat. First, the occurrence of the law Thin snow moth occurs in Shandong 1 year generation 3, with pupa overwinter, into