稀点雪灯蛾Spilosoma urticae(Esper)属鳞翅目,灯蛾科。我省过去很少发生,近年来,为害麦田套播玉米幼苗日趋严重。我们经过三年室内饲养和田间调查,已摸清其生物学特性、发生规律及防治方法,现将研究结果总结如下。 一、为害及分布 稀点雪灯蛾是一种杂食性害虫,为害玉米、豆类、棉花、甘薯、蓖麻、芝麻、向日葵、麻类、瓜类、小麦、高梁、谷子、黍子、苜蓿、白菜、辣椒、茄子、西红柿及桃、李、柳、榆、泡桐、紫穗槐等。稀点雪灯蛾以第1代幼虫为害麦田套播玉米幼苗最盛,可将幼苗全部吃光,造成缺苗断垄,甚至 Spodoptera snow moths Spilosoma urticae (Esper) is a Lepidoptera, moth family. In the past, seldom occurred in our province. In recent years, it has become increasingly serious for corn seedlings to be sowed in wheat fields. After three years of indoor rearing and field surveys, we have ascertained its biological characteristics, laws of occurrence and prevention methods. The results of the study are summarized as follows. First, the damage and the distribution of the dizzy Snow moth is a omnivorous pests, damage corn, beans, cotton, sweet potato, castor, sesame, sunflower, hemp, melons, wheat, sorghum, millet, millet, alfalfa , Cabbage, peppers, eggplant, tomatoes and peaches, plum, willow, elm, paulownia, Amorpha fruticosa and so on. Thin snow moth to the first generation of larvae infestation Wheat seedlings broadcast the most corn seedlings, all the seedlings can be eaten, resulting in missing seedlings broken ridge, or even