金龟子属无脊椎动物、昆虫纲、鞘翅目,是一种杂食性害虫。金龟子全世界有3万余种,是危害果树的重要害虫,其幼虫蛴螬为害根部。在成虫发生季节常常成群迁入果园危害,严重时可将花蕾、花及叶片啃食一光。这类害虫主要有苹毛金龟子、黑绒金龟子、小青花金龟子等,以成虫在土中越冬,4月上中旬成虫开始出现,在榆林北部4月下旬5月上旬为出土高峰期。其危害时期主要集中在果树露蕾期至花期,啃食花蕾、花和嫩芽、嫩叶,不利于果树开花坐果和树体生长。傍晚和夜间为危害盛期,有假死 Scarab is an invertebrate, Insecta, Coleoptera, is a omnivorous pest. There are more than 30,000 species of chafer throughout the world, which are important pests that endanger fruit trees and their larvae are harmed by the roots. Insects often occur in groups during the season into the Orchard hazards, in serious cases buds, flowers and leaves can eat a light. These pests are mainly Peacock beetles, black velvet beetles, small beetles and other beagles in the soil overwintering in adults in mid April onwards, early May in northern Yulin in early May for the unearthed peak. Its harmful period mainly concentrated in the fruit buds to the flowering stage of budding, eating buds, flowers and shoots, leaves, is not conducive to the flowering of fruit trees and tree growth. In the evening and night for the risk of peak, suspended animation