本文通过多年的调查资料，根据松林作业小班的地理生态环境、虫情发生特点等综合因素来划分马尾松毛虫不同发生类型，改变了以往单从松林的海拔、林相、植被、土壤等条件来划分发生类型的方法，较为准确合理。以此划分为基础，对以“虫源地”为重点的松毛虫重灾区、常灾区进行综合治理，取得了显著的经济效益和生态效益。 Based on many years of investigation, this paper divided the different occurrence types of Dendrolimus punctatus according to the comprehensive factors such as the geographical ecological environment and the pest occurrence characteristics of the small class of pine forest, and changed the past classification of single pine forest from the elevation, forest facies, vegetation and soil The type of method, more accurate and reasonable. Based on this division, we made comprehensive management of the disaster-hit areas and the disaster-stricken areas of the pine caterpillars focusing on the “source areas” and achieved remarkable economic and ecological benefits.