林业厅「关于召开松毛虫竹蝗防治工作会议的报告」省人民委员会同意,现转发你们研究执行。松毛虫是松林最严重的自然灾害。去年我们对防治工作抓得不够,因而被害面积很大。现已到四月,越冬幼虫即开始出来活动,危害松林,望即将防治松毛虫害工作结合各项农业生产工作适当统一安排,抓紧研究松毛虫生长规律和防治有利季节进行防治。除人工捕捉外,重点地区要尽可能集中利 The Forestry Department “Report on Holding a Working Conference on Prevention and Control of Dendrolimus punctatus” The Provincial People’s Committee agrees that we forward your research and implementation. Dendrolimus pine forest is the most serious natural disaster. Last year, we did not grasp enough prevention and control work and thus the area of ​​the victims was very large. Now that in April, the overwintering larvae begin to come out and endanger the pine forests. We hope that the prevention and control of the pine caterpillars will be integrated with the various agricultural production work. We will pay close attention to the study on the growth rules of the pine caterpillars and the prevention and treatment of favorable seasons. In addition to manual capture, the key areas to concentrate as much as possible