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松枝小卷蛾(Laspeyresia coniferana Rotz)是我省东部山区松林内的主要蛀干害虫之一。它以幼虫危害树干韧皮部,造成大量流脂,使树势衰弱,引起其它蛀干害虫侵入,致使林木枯死。1977年在我校试验林场的油松林内发现该虫,1978—1979年对它的生活习性及生活史进行了初步观察研究和防治试验。一、分布及危害国内分布于黑龙江、吉林、辽宁等省;国外分布于苏联的西伯利亚。松枝小卷蛾主要危害油松(Pinus tabulaeformis Carr.)、樟子松(P.Sylvestsis Lvar
Laspeyresia coniferana Rotz is one of the major stem borers in pine forests in eastern mountains of our province. It larvae endanger the phloem trunk, resulting in a large number of flow fat, the weakness of the tree, causing other pests invade, resulting in dead trees. In 1977, the pest was found in Pinus tabulaeformis forest in our experimental forest farm. From 1978 to 1979, its life habits and life history were preliminarily observed and controlled. First, the distribution and damage Distributed in Heilongjiang, Jilin, Liaoning and other provinces; distributed abroad in the Soviet Union of Siberia. Pinus tabulaeformis Carr., Pinus sylvestris (P.Sylvestsis Lvar