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用亚洲玉米螟测定苏云金杆菌毒力效价。供试虫以玉米螟2龄幼虫为佳,采用候选苏云金杆菌制剂混入半人工混合饲料中接虫感染的方法,结果准确,操作简使,完成一次测定需时3天,标准差为15.49％。
Bacillus thuringiensis Toxicity Titers Measured by Asian Corn Borer. The second instar larvae of the test insects were better than the second instar larvae of the corn borer. The method of mixing the candidate Bacillus thuringiensis strains into the semi-artificial mixed feed was accurate and easy to operate. The time required for completing the test was 3 days and the standard deviation was 15.49%.