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松树占我区森林面积一半以上,每年受松毛虫危害十分严重。因此,防治松毛虫是落实毛主席关于“绿化祖国”伟大号召的具体行动,也是当前林业生产迫切要求。为了探索多快好省地治虫方法,两年来,我们走与工农相结合道路,深入林场、农村,与林业职工、贫下中农一起进行白僵菌土法生产及大面积使用防治松毛虫试验,松毛虫感染死亡率达60-95%,取得了较好的防治效果。1971年3月,在北流沙圳林场进行林间放菌防治越冬代试验,撒菌粉2斤,到4月中旬
Pine trees in my area accounted for more than half of the annual caterpillar damage is very serious. Therefore, the prevention and control of pine caterpillars is a concrete move to implement Chairman Mao’s great call for “greening the motherland,” and it is also an urgent requirement of forestry production. In order to explore how to manage insect pests faster and more efficiently, in the past two years, we took the road of combining with workers and peasants and went deep into the forest farms and rural areas to carry out the production of Beauveria bassiana by indigenous methods and the large-scale use of pine weeds to prevent and control pine Caterpillar infection mortality rate of 60-95%, and achieved good control effect. March 1971, Beiliu Shazhuang forest farms for the prevention and treatment of overwintering forest on behalf of the test, soil powder 2 pounds, to mid-April