云南松梢木蠹象（ Ｐｉｓｓｏｄｅｓｓｐ－） 是云南省新发现的危害云南松（ Ｐｉｎｕｓ ｙｕｎｎａｎｅｎｓｉｓＦｒａｎｃｈ）幼树的蛀干蛀梢害虫，在昆明地区仅分布于嵩明县大哨乡海拔２２００～２６００ ｍ １０ 年生云南松林中，面积３５１ ｈｍ２ ，受害株率３７－１ ％ ．该虫１ 年发生１ 代，以老熟或近老熟幼虫在受害枝干内越冬．３ 月下旬开始化蛹，５ 月上旬始有成虫羽化扬飞，在当年生枝梢上补充营养，并在２ ～３ 年生枝条上产卵，６ ～８ 月为产卵期．６ 月下旬幼虫开始孵化．发现该虫天敌茧蜂１ 种（ Ｂｒａｃｏｎ ｓｐ－），寄生率为１－６％ ～３３－０％ ．提出以清理虫害木为主结合化防（ 成虫补充营养期） 的防治方法，清理最佳时期为４ 月中、下旬；１９９５～１９９７ 年开展了３ 年的防治，并取得较好的防治效果． Pinus yunnanensis (Pissodessp-) is a newly found stem-bore pest of Pinus yunnanensis Franch young trees in Yunnan Province. It is distributed in Kunming only at the altitude of 2200 ~ 2600 m 10-year-old Yunnan pine forest, an area of ​​351 hm2, strain affected 37-1%. The worm occurred in 1 year generation, with mature or near mature larvae overwintering in the victim branches. In late March pupation began, in early May there are adult feathers Yang Feifei, in that year to supplement the nutrition of shoots, and 2 to 3 years old branches spawning, 6 to August for the spawning period. Larva begin to hatch in late June. 1 species of Bracon sp- was found, with a parasitic rate of 1-6% to 33-0%. Proposed to clean pests wood-based combination of anti-(adult nutritional supplement period) prevention and treatment methods, the best time for cleaning in mid-April, late; 1995 to 1997 to carry out 3 years of prevention and control and achieved better control effect.