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本文以玉米螟为供试昆虫,采用规范化的生物测定方法对全国各地筛选的19个高毒力苏芸金杆菌菌株进行毒力评比.实验结果表明属于血清型H_(3a3b)的各菌株对玉米螟具有较高的毒力.以LD_(50)作为衡量各菌株的毒力指标选出了HD-1、鄂农3号、551和80-1等几个高毒力的菌株,为今后生产高效的苏芸金杆菌制剂提供了依据.
In this paper, 19 T. virulent strains of Bacillus thuringiensis selected from all over the country were screened for their virulence using the standardized test for the test of corn borer.Experimental results show that the strains belonging to the serotype H_ (3a3b) Borer has higher virulence.Using LD_ (50) as a measure of the virulence of each strain selected several strains of high virulence such as HD-1, Eonong 3, 551 and 80-1 for future production Efficient Bacillus thuringiensis preparations provided the basis.