落叶松梭溃疡是大兴安岭南坡林区新发生的一种真菌病害。1975年秋,阿尔山林业局伊尔施林场13年生兴安落叶松的枝干梢头有零星枯萎现象,1979年受害面积达万亩以上。1979年在五岔沟林业局芦沟桥附近的2000多亩,8-10年生的兴安落叶松新植幼林内调查,受害相当严重。调查时,林木几乎全部枯死,只 Larch shuttle ulcer is a newly occurring fungal disease in the southern slope of Daxinganling. The autumn of 1975, Aershan forestry bureau Er Shi Shi Lin 13-year-old larch branches of the branches have withered sporadic wilt, in 1979 victimized area of ​​more than mu. In 1979, more than 2,000 mu of 8-year-old Larix gmelinii young plantations were surveyed in the vicinity of Lugou Bridge in Wuchagou Forestry Bureau, causing serious damage. At the time of the survey, almost all trees died, only