摘要
桦三节叶蜂 Arge similis Vollenhoven危害桦树。在互助县北山林区一年发生 1代 ,以幼虫危害叶片 ,总食叶量可达 47.1 cm2 /头 ,桦三节叶蜂发生程度主要取决于气候条件 ,特别是温湿度适宜与否。其次是受越冬蛹茧基数、寄主树种的多寡以及天敌数量的影响 ,在防治上应采取综合防治措施 ,如人工消灭越冬蛹茧、营造混交林 ,保护天敌等方法 ,以减少幼虫发生量 。
Arge similis Vollenhoven injures birch.It has one generation a year in Huzhu.The larva eats leaves of the hosts.The degree of the occurrence mainly depends on the climate,especially on the humidity and temperature.Some integrated control measures such as wiping out overwintering pupae,afforesting mixed stands and protecting natural enemies should be taken to reduce the larvae population.
出处
《森林病虫通讯》
北大核心
2000年第6期24-25,共2页
Forest Pest and Disease
