近年来,一种严重的危险性害虫——凇纵坑切梢小蠹正在我省云南松分布区域内迅速蔓延,在昆明、红河、楚雄、昭通等地、州(市)的局部地区危害尤为严重。这种害虫对云南松林造成极大的威胁,应当引起各级林业部门的足够重视。松纵坑切梢小蠹是鞘翅目小蠹科的一种小型甲虫。它是一种钻蛀性害虫,成、幼虫均可为害。成虫褐色,有光泽,长约3—5毫米,有一对棒槌状触角;幼虫 In recent years, a serious pest of pest - Trichosanthes punctiferalis is rapidly spreading in the distribution area of ​​Pinus yunnanensis in our province, especially in the areas of Kunming, Honghe, Chuxiong and Zhaotong, and other parts of the state (city) serious. This pest poses a tremendous threat to the pine forests in Yunnan and should give sufficient attention to the forestry departments at all levels. Pachyrhizi is a small beetle of the family Coleoptera. It is a boring insects, into, larvae can be harmful. Adult brown, shiny, ca. 3-5 mm, with a pair of club mallet antennae; larvae