落叶松双肩尺蛾(Cleora cinctaria Schiff.)国内尚无报道。1973年7月上旬在辽宁清原城郊林场发现其为害,因无防治准备,树冠的大部叶片被吃光。1974年我校实验林场约五百多亩落叶松人工林遭受严重为害,同年本溪连山关林场的一万五千亩落叶松普遍发生,其中有五千亩受害严重。从1974—1978年我们对此虫的生物学特性、发生规律及防治进行了研究,现报道如下。 There is no report about Cleora cinctaria Schiff in China. In early July 1973 in Qingyuan, Liaoning suburbs forest found its damage, because no preparation for prevention, most of the canopy leaves were eaten. In 1974, about 500 mu of larch plantations were severely damaged in the experiment farm in our school. In the same year, 15,000 mu of larch occurred in Lianshanguan Forest Farm, Benxi, of which 5,000 mu were seriously injured. From 1974 to 1978, we studied the biological characteristics, occurrence and prevention of this insect and are reported as follows.