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湖北省寄生虫病防治研究所研制的Bti和BS－C3－41漂浮颗粒剂在现场对中华按蚊和致乏库蚊幼虫的效果进行了试验，结果显示Bti漂浮颗粒剂对稻田中的中华按蚊有较好的毒杀效果。剂量为0．45g／m2时，24小时中华按蚊幼虫密度下降率为86.6％～100％。持效达14～15天，BS－C3－41漂浮颗粒剂剂量为0．45g／m2～0.4g／m2，48小时致乏库幼虫密度下降率为90．4％～97．4％，持效达13～15天。Bti漂浮颗粒剂对非靶水生生物安全无毒。
Hubei Province Institute of Parasitic Diseases developed Bti and BS-C3-41 floating granules in the field of Anopheles sinensis and Culex pipiens larvae of the results were tested, the results show that Bti floating granules on the paddy in China press Mosquitoes have a better killing effect. When the dosage was 0.45g / m2, the larval density of Anopheles sinensis decreased by 86.6% -100% at 24 hours. Effective for 14 to 15 days, BS-C3-41 floating granules dose of 0.45g / m2 ~ 0.4g / m2, 48 hours caused by lack of library larval density decline rate of 90.4% to 97.4%, with Effective up to 13 to 15 days. Bti Floating Granules are non-toxic to non-target aquatic organisms.