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落叶松锉叶蜂(Pristiphora laricis(Hartig))是危害落叶松的食叶害虫,在围场县塞罕坝机械林场和孟滦林管局1a发生1代,每年发生面积达到6000多公顷,其中塞罕坝机械林场发生面积最大,每年发生400hm2左右,孟滦林管局每年发生面积为26667hm2左右,由于虫口密度较大,严重影响了林木的生长,同时也影响了围场县的旅游形象,为此,塞罕坝机械林场自1996年开始对该种害虫进行了专题研究。1形态特征
Pristiphora laricis (Hartig) is a leaf-eating pest that is harmful to larch. It occurs for 1 generation in Laifeng County Saihanba Machinery Forest Farm and Mengluan Forest Management Bureau 1a, with an annual area of more than 6000 hectares, of which, Hanba mechanical forest farms occur the largest area, occurring about 400hm2 per year, Mengruan Forest Management Office an annual area of about 26,667hm2, due to the population density is larger, seriously affected the growth of trees, but also affected the tourism image of the yard County, to this end , Saihanba Machinery Forest Farm since 1996 began a special study on the species of pests. 1 morphological characteristics