本文报告了圆形芽孢杆菌(B.sphaericus)在室内和室外不同程度污染的水塘内对蚊类幼虫的防制效能和持久性,及其对非靶子生物的影响。在室内,测定了圆形芽孢杆菌2362各种剂型杀灭致乏库蚊四龄幼虫的效果,并用计算机作对数机率回归分析,结果比圆形芽孢杆菌1593-RB80的国际标准制剂好2倍。 This article reports on the control efficacy and persistence of B.sphaericus on mosquito larvae in reservoirs of varying degrees of indoor and outdoor contamination and their impact on non-target organisms. The effects of various dosage forms of Bacillus thuringiensis 2362 on the fourth instar larvae of Culex pipiens pallens were determined indoors. The regression analysis was performed on the logarithmic odds ratio using computer. The result was twice as good as that of the international standard preparation of Bacillus circulans 1593-RB80.