摘要
本文报道球形芽孢杆菌Ｃ３－４１对嗜人按蚊和东乡伊蚊的毒性。实验室生物测定结果表明，ＢｓＣ３－４１液剂对嗜人按蚊Ⅳ龄幼虫处理后２４ｈ和４８ｈ的ＬＣ５分别为２．４０ｐｐｍ和１．７８ｐｐｍ，对东乡伊蚊的ＬＣ５０分别为５．３５ｐｐｍ和３．１４ｐｐｍ；持效为１～２周。Ｂｓ．Ｃ３－４１粉剂对嗜人按蚊和东乡伊蚊处理后２４ｈ的ＬＣ５０分别为３．３３ｐｐｍ和４．４４ｐｐｍ，处理后４８ｈ的ＬＣ５０分别为１．３６ｐｐｍ和１．４４ｐｐｍ。球形芽孢杆菌Ｃ３－４１处理蚊幼虫４８ｈ后的效果明显优于处理后２４ｈ的。
This paper reported the toxicity of Bacillus sphaericusc3-41 against the fourth instar larvae of Anopheles anthropophagus and Aedes togoi by bioassays in the laboratory. The LC50 of Bsc3-41 solution against An.anthropophagus after treatment for 24 hrs and 48 hrs were 2.40 ppm and 1.78ppm respectively.The LC50 against Ae.togoi after treatment for 24 hrs and 48 hrs were 5.35ppm and 3.14 ppm.The residual effect of these treatments lasted for 1-2 weeks. The LC50 of Bs C3-41 powder against An.anthropophagus and Ae.togoi were 3.33ppm and 4.44ppm respectively after treatment for 24 hrs and 1.36ppm and 1.44ppm respectively after treatment for 48 hrs. The results showed that the larvicidal effectiveness of Bs C3-41 against mosquito larvae after treatments for 48 hrs was much better than that for 24 hrs.
出处
《中国媒介生物学及控制杂志》
CAS
CSCD
1996年第1期6-8,共3页
Chinese Journal of Vector Biology and Control
关键词
嗜人按蚊
东乡伊蚊
微生物制剂
球形芽孢杆菌
Bacillus sphaericus C_(3-41) Toxicity Anopheles anthropophagus Aedes togoi
