Abstract: Chafer bored fruit trees, especially young fruit trees severely.Damage by Maladera orientalis and Holotrichia diomphalia on young fruit trees and their control techniques were studied.

• 文章摘要: 金龟子对果树特别是幼龄果树为害相当严重，本项目对白城市幼龄果树所发生的黑绒鳃金龟子和东北大黑鳃金龟的危害及防治措施进行了研究。