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松毛虫是马尾松林的大敌,一旦猖獗成灾,就不易用单一农药控制。在华主席抓纲治国的战略决策指引下,在各级党委的领导下,我们于1977年,在郴州镇松毛虫灾区与有关单位共同协作,采用白僵菌、杀虫烟剂、人工扑捉三种方法,因地制宜地进行综合防治,迅速地控制了1,500亩的松毛虫灾情。经检查,有虫株率由原来的100%下降到15.6%,平均虫口密度由61条/株下降到1.2条/株,针叶极少受害,比单用化学农药防治,节省了3吨农药,300个劳力和2,000多元钱,取得了显著成效。具体做法是:
Pine caterpillar is the enemy of masson pine forest, once rampant disaster, it is not easy to use a single pesticide control. Under the leadership of China’s party committees under the leadership of party committees at all levels, under the guidance of China’s strategic decision of grasping the country with the rule of principle and by the party committees at various levels, in 1977, we cooperated with the relevant units in the area affected by the pine caterpillars in Chenzhou Town and adopted Beauveria bassiana, insecticide and tobacco smoke, Three methods, according to local conditions for integrated control, rapid control of 1,500 acres of pine caterpillar disaster. After inspection, the rate of insect pests decreased from 100% to 15.6%, the average density of pests decreased from 61 plants / plant to 1.2 plants / plant, and the needles were rarely harmed. Compared with chemical pesticides alone, 3 tons of pesticides were saved , 300 labor and more than 2,000 yuan, has achieved remarkable results. The specific approach is: