落叶松球果种蝇（Ｌａｓｉｏｍｍａ ｓｐ．）是东北原始落叶松林的重要害虫。鹤立林业局三号沟经营所，用敌杀死配制毒饵防治此虫取得较好效果。１　施业区概况 该施业区属于低山丘陵地形，为寒温带大陆性季风气候。春季风大干旱；夏季温湿多雨，多西南风；秋季降温迅速；冬季? Larch (Lasiomma sp.) Is an important pest of the primitive larch forest in the Northeast. Heli Forestry Bureau Sanliugou operation, with the enemy kill the preparation of bait to control this worm to achieve better results. 1 Application Area Overview The area belongs to hilly terrain, cold temperate continental monsoon climate. The spring monsoon is very arid; the summer is warm and wet and the southwest winds; the fall is rapid; and the winter?