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舞毒蛾为世界性大害虫,分布范围广,食性杂,能为害柞、杨、苹果、山楂、柿、杏、落叶松等500余种植物。近年来,由于气候及环境等因素的影响,舞毒蛾在我省北部山区发生严重,因其食性杂、繁殖量大、防治困难,成为当地主要病虫害之一。舞毒蛾在山区发生分布明显成片状,高山,山下果园、村庄四旁树均有发生,群集暴食成灾,单株虫口高达90条以上,幼虫2龄以后,明显具有昼伏夜出习性,后期幼虫由于食量增大,有较强地爬行转移危害能力。
Gypsy moth is a world-class pest, with a wide distribution, miscellaneous food habits, can damage oak, Yang, apples, hawthorn, persimmon, apricot, larch and other 500 kinds of plants. In recent years, because of climate and environmental factors, gypsy moths have become serious in mountainous areas in the northern part of our province. Due to their complicated feeding habits, large breeding volume and difficulty in prevention and treatment, Gypsy moths have become one of the major pests and diseases in the region. Gypsy moths were obviously distributed in mountainous areas. Alpine, mountain orchards and villages on the four sides of the trees all occurred. Cluster swallowed and disaster caused more than 90 insects per plant. After 2 larvae of larvae, larvae obviously had nocturnal nocturnal habit, Larva as food intake increases, there is a strong ability to crawl and transfer hazards.