为了把森林病虫害管理工作建立在科学的基础之上。我们在六个国营林场建立起林分永久标准地40块,建立森林病虫综合管理档案80份。从1980年到1985年以来,表现出明显的效果。落叶松鞘蛾曾在1979年到1982年处在暴发期,82年秋越冬前调查和83年春越冬后调查虫口密度下降幅度较大,天敌则大量增加,由于建立了害虫管理档案,我们综合分析了79—82年的 In order to forest disease and pest management based on science. We set up 40 permanent standard stands in six state-owned forest farms and established 80 comprehensive forest disease and insect pests management files. From 1980 to 1985, it has shown obvious results. Larch sheath moth was in the outbreak period from 1979 to 1982, the autumn pre-winter investigation in the autumn of 82 and the spring of 83 in the winter after the survey population densities decreased significantly, but a substantial increase in natural enemies, the establishment of a pest management file, we comprehensively analyzed 79-82 years