松扁叶蜂在我国危害油松,是油松重要害虫之一,松扁叶蜂一年发生一代,以老熟幼虫入土越冬。在野河林区4月中旬至4月底开始化蛹,5月上旬为化蛹盛期,同时,成虫开始羽化,5月中下旬为羽化盛期,同时开始孵化,6月上旬为孵化盛期也是危害盛期,6月底7月初,幼虫开始下树,下旬全部下树越冬。 Pine bough bee endangered Pinus tabulaeformis, Pinus tabulaeformis is one of the major pests, pine flat bee occurred a generation a year to mature overwinter larvae. In wild river forest from mid-April to the end of April began pupation, in early May for the pupation peak period, at the same time, the adult began to emerge, the mid-to late May feather peak, at the same time began to hatch in early June for the incubation period is also Endangering the dawn, by the end of June early July, larvae began to tree, late all under the tree.