高山扁叶蜂Cephalcia alpina Klug为害华北落叶松,可将针叶取食一空,使树停止生长,焦枝干梢,为害十分严重。据“中国森林昆虫”一书记载,高山扁叶蜂国内分布于山西,国外分布于中欧、苏联和朝鲜。 我们于1985年6月下旬在赤城县大海陀林场发现高山扁叶蜂。该场已有87亩落叶松被害,被害林从远处望去呈焦枯一片。7月上旬,被害树下,枯枝落叶中每平方米有越冬幼虫达400—500头,密度很大。据了 Alpine flat leaf bee Cephalcia alpina Klug harmful to Larix principis-rupprechtii, can be fed all the needles, so that the tree stops growing, coke branches dry tip, the damage is very serious. According to “China Forest Insects,” a book records, alpine flat leaf bee domestic distribution in Shanxi, foreign distribution in Central Europe, the Soviet Union and North Korea. In late June 1985, we found alpine flat-bee on the Da Tuo Tuo Forest Farm in Chicheng County. 87 acres of larch has been the scene of the victims, the victim forest looked from a distance Joking one. In early July, victims of the tree, litter per square meter there are 400-500 overwintering larvae, density. According to it