松毛虫脊茧蜂Rogas dendrolfmf(Matsmura)是松毛虫的劲敌,我省备松毛虫发生区均有分布。在我县分布更为普遍。据1970—1978年数年中观察,自然寄生率为1—5％,个别地点寄生率高达20％以上。因此,摸清松毛虫脊茧蜂的发生发展规律,充分发挥它对松毛虫的抑制作用,是非常重要的,是生物防治松毛虫的重要方面。 Dendrolimus bee Rogas dendrolfmf (Matsmura) is the enemy of pine caterpillars, the distribution of pine caterpillars in our province are distributed. Distribution in my county is more common. According to several years from 1970 to 1978 observed that the natural parasitic rate of 1-5%, the parasitic rate of individual sites as high as 20% or more. Therefore, it is very important to find out the regularity of occurrence and development of Dendrolimus punctatus and give full play to its inhibitory effect on Dendrolimus spp., Which is an important aspect of biological control of Dendrolimus punctatus.