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ying dang bao hu ma feng wo
Author(s): 
Pages: 5
Year: Issue:  1
Journal: CHINA NATURE

Abstract: <正> 马蜂亦称胡蜂,是一种对农业、林果业有益的昆虫。马蜂喜欢群聚生活,常在比较高大的树木上做吊钟状蜂巢,俗称马蜂窝。在一个马蜂窝内有雄蜂和雌蜂,雄蜂和雌蜂形态极为相似,很难区别。马蜂与蜜蜂不同,马蜂窝内无蜂王。马蜂是一种捕食性昆虫。它是棉铃虫、菜青虫、稻苞虫以及各种螟虫的天敌。棉铃虫是棉花的大害虫,一
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