Preliminary investigation on molluscicidal effects of colistin E
- VernacularTitle:黏菌素E杀灭钉螺效果的初步研究
- Author:
Chuanxin YU
;
Xuren YIN
;
Yongliang XU
;
Xiaohong YANG
;
Yinchang ZHU
- Publication Type:Journal Article
- Keywords:
Colistin E;
Molluscicidal effect;
Oncomelania hupensis
- From:
Chinese Journal of Schistosomiasis Control
1992;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the molluscicidal effect of colistin E on Oncomelania hupensis. Methods The molluscicidal effect of colistin E on O. hupensis was checked by using the immersion method and spraying method. The toxicity of colistin E on fish was observed by using the toxic test. Results The snail mortality of each group was 100% when the snails were immersed in the colistin E solutions at a concentration of 5. 0, 1. 0 g/L for 24, 48 h and 72 h separately. When the snails were immersed in the colistin E solution at a concentration of 0. 5 g/L for 24, 48 h and 72 h, the death rates were 95% , 100% and 100% respectively; when the snails were immersed in the colistin E solution at a concentration of 0. 1 g/L for 24, 48 h and 72 h, the mortality was 90%, 95% and 100% respectively; when the snails were immersed in the colistin E solution at a concentration of 0. 01 g/L for 24, 48 h and 72 h, the mortality was 70%, 86% and 100% respectively. The snail mortality by the spraying method in a dose of 35, 70, 140 mg/m2 of colistin E was 60%, 100% and 100%. The result of toxic test showed that the toxicity of colistin E on fish was low. Conclusion Colistin E is an effective molluscicide, and is worthy of investigation further.
