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.是什么意思_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.在线翻译_英语_读音_用法_例句