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球形芽孢杆菌Ｃ３┐４１杀蚊幼实验制剂对３～４龄致倦库蚊和大劣按蚊幼虫有较强的毒性，其４８小时的ＬＣ５０值分别为０．００７９５和０．９８５００ｍｇ／Ｌ。蚊幼虫死亡后，球形芽孢杆菌芽孢能在死蚊幼体内正常萌发、繁殖和发育，并产生有杀蚊活性的芽孢和晶体混合物。在含有死蚊幼虫的处理组，两种蚊幼虫的死亡率２０天内一直维持在９５％以上；在无死蚊幼的对照组，大劣按蚊幼虫１４天后的死亡率下降为０，致倦库蚊幼虫２０天后的死亡率下降到１０％以下。证明经球形芽孢杆菌处理致死的蚊幼尸体可以延长制剂在水体中的持效期
Bacillus sphaericus C3 ┐ 41 mosquito nemesis experimental preparations of 3 to 4 age Culexis and Anopheles larvae have strong toxicity, 48 hours LC50 values were 0.00795 and 0.98500mg / L. After the death of mosquito larvae, B. sphaericus can germinate, reproduce and develop normally in the larvae of dead mosquitoes and produce mosquito-active spores and crystal mixtures. In the treatment group containing dead mosquito larvae, the mortality of both mosquito larvae remained above 95% within 20 days; in the control group without dead mosquito, the mortality of the larvae of Anopheles stephens decreased to 0 after 14 days, Mortality after 20 days of Culex pipiens larvae drops below 10%. Demonstration that dead bodies of mosquito juveniles treated with Bacillus sphaericus can prolong the shelf-life of the preparations in water