The pear bug, Halyamorpha picus Fabricius, is one of the most destructive pests of pear in Beijing area, fa recent years, about 30- 50% pear fruits, sometimes above 80%, were injured by this pest.

• 茶翅蝽是北京地区梨生产上为害最重的一种害虫；害果率可达80%25以上.