松瘿小卷蛾Laspeyrsia Zebcsna(Ratz)是东北地区落叶松中,幼林的主要害虫之一.在吉林省的舒兰、桦甸、磐石和延吉等地的落叶松人工林内普遍危害,个别林地危害尤烈.此虫幼虫期生活于枝、梢上,潜食当年新生嫩梢基部的韧皮部和木质部,刺激落叶松枝条膨大形成虫瘿,并引起流脂,往往造成主梢在侧枝自被害部以上枯死;主 Laspeyrsia Zebcsna (Ratz) is one of the major pests of young and middle larch in northeastern China, and is widely endangered in larch plantations in Shulan, Huadian, Panshi and Yanji of Jilin Province, This insect larvae live in branches and shoots, the phloem and xylem at the base of newborn shoots in the current year, stimulating larch branches to enlarge and form flies and causing fats, often causing the shoots to wither above the victim’s branches ;the Lord