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苏云金杆菌是对多种昆虫具有高度致病力的一类芽孢杆菌。我国自1955年从国外引进以来,正在许多农林害虫上应用。目前国内应用较广泛的有7216(Bacillus thuringiensis var.Tienmensis),HD—1(B. thuringiensis var. kurstaki)两个变种,苏云金杆菌是一种无公害农药,在蔬菜害虫防治上可推广应用。但对7216、HD—1这两个变种的毒力测定、应用范围、施用技术等方面国内报道不多。为了开展蔬菜害虫的综合防治,必须进一步明确苏云金杆菌在蔬菜害虫上的防治对象及其效果,研究它的使用技术,为此我们于1982—
Bacillus thuringiensis is a type of Bacillus that is highly pathogenic to many insects. Since our country introduced from abroad in 1955, our country is applying it on many pests of agriculture and forestry. At present, there are two varieties of Bacillus thuringiensis var. Tienmensis and HD-1 (B. thuringiensis var. Kurstaki) which are widely used in China. Bacillus thuringiensis is a pollution-free pesticide which can be popularized and applied in the prevention and control of vegetable pests. However, 7216, HD-1 these two variants of the toxicity determination, the scope of application, application techniques and other aspects of domestic reports. In order to carry out comprehensive prevention and control of vegetable pests, it is necessary to further clarify the prevention and treatment of Bacillus thuringiensis in vegetable pests and its effects, to study its use of technology, for which we in 1982-