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在烟叶生产过程中,常遭受烟青虫的危害。使用滴滴涕等化学农药防治,效果虽好,但长期大量使用,会影响人体健康和外贸出口,同时使害虫产生抗性,也杀伤了天敌。因此,采用生物农药进行防治,以减少化学农药的使用量就引起了人们的重视。1974年,河南省长葛县坛福庙公社自力更生办起了青虫菌农药厂,他们应用本厂土法生产的青虫菌防治烟青虫,面积700多亩,初步获得较好防治效果。于是,1975年他们又进一步扩大示范,防治面积达3,000余亩,供试肯虫菌有本公社生产的土法产品,也有外地的土法产品和工业产品,每克含菌量各
In the tobacco production process, often suffer from tobacco budworm harm. The use of DDT and other chemical pesticides to prevent and control, the effect is good, but long-term heavy use, will affect human health and exports, while pests produce resistance, but also kill natural enemies. Therefore, the use of biological pesticides for prevention and control in order to reduce the use of chemical pesticides has attracted people’s attention. In 1974, Henan Changge County Tanfu Temple commune self-reliance to start a caterpillar fungus pesticide plant, their application of native plant production of caterpillar fungus control tobacco budworm, with an area of 700 mu, initially get better control effect. As a result, in 1975 they further expanded their demonstration to prevent and control an area of more than 3,000 mu for the test of Kechuang communes produced indigenous products, but also the field of indigenous products and industrial products, each gram of bacteria