松毒蛾(D·argentata Buller)属于鳞翅目毒蛾科。是湖南省雪峰山脉以及4200℃等值线西部,500米以上的高山新发现的一种森林主要害虫。它的主要寄主是马尾松,在严重缺食情况下,也为害杉、柏、雪松、水杉等针叶树。一、发生的基本情况松毒蛾在湖南大面积为害,历史上查无记载。1982年,首次发现在益阳地区安化县(500米以上的大山区)柘溪水库区 D. argentata Buller belongs to the order Lepidoptera. It is a newly found forest pest in Xuefeng Range, Hunan Province and western part of 4200 ℃ contour line, with a height above 500 meters. Its main host is Pinus massoniana, in the case of severe lack of food, but also for the fir, cypress, cedar, metasequoia and other conifers. First, the occurrence of the basic situation Pine gnats damage in large areas in Hunan, the history of investigation no records. In 1982, it was first discovered that in the Anxi County of Yiyang area (Dashan District of over 500 meters)