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烟青虫是烟草的主要害虫之一。主要为害烟草的叶片、花蕾及嫩茎。发生期长,为害重。为克眼化学防治所存在的毒性、残留、杀伤天敌以及虫体产生抗药性等缺点,研究采用苏云全杆菌 HD-1乳剂防治烟青虫的生物防治法,取得了较好的效果。简报如下。一、试验示范方法供试药剂为苏云金杆菌 HD-1乳剂(以下简称 HD-1乳剂),系湖北省农科院微生物农药厂1985年产品,每毫升含孢子100亿以上。
Tobacco caterpillar is one of the major pests of tobacco. Mainly harmful tobacco leaves, buds and stems. Occurred long, heavy damage. In order to overcome the shortcomings of toxicity, residues, natural enemies and the resistance of parasites caused by chemoprevention, the biological control of tobacco budworm by using the whole bacterium HDV-1 emulsion was studied, and the better results were obtained. Briefing is as follows. First, the pilot demonstration methods for the test agent Bacillus thuringiensis HD-1 emulsion (hereinafter referred to as HD-1 emulsion), Department of Agricultural Sciences in Hubei Province, microbial pesticide plant products in 1985, per ml with spores more than 10 billion.