[Study on the molluscicidal effect of META-Li against Oncomelania hupensis].
OBJECTIVE
To evaluate the molluscicidal effect of the META-Li (40% META liquid formulation) against Oncomelania snails in laboratory and field.


METHODS
The experiment of META-Li against the snails by spraying, immersion and climbing-inhibition test was carried out in laboratory. Spray method was performed in the field to compare with the wettable powder of 50% niclosamide ethanolamine salt.


RESULTS
In laboratory, the LC50 of META-Li by spraying for 1, 2, 3 days was 0.78, 0.44 and 0.46 g/m2 respectively; by immersion method for 1, 2, 3 days, it was 44.4, 27.4 and 24.8 mg/L respectively. When sprayed with active ingredient 2 g/mW of META-Li in the field, the snail death rate was above 90% after 7 days, similar to that of niclosamide.


CONCLUSIONS
META-Li shows high molluscicidal and climbing-inhibition effect on Oncomelania snails.
Zhu
Dan
D
National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Malaria, Schistosomiasis and Filariasis, Shanghai 200025, China.
Zhou
Xiao-nong
XN
Zhang
Si-qing
SQ
Zhang
Gonghua
G
Liu
He-xiang
HX
Lu
Da-bing
DB
Cai
Guo-ying
GY
Ni
Quan-zheng
QZ
Cao
Zhi-guo
ZG
Wu
Wei-duo
WD
D000818:Animals; D008975:Molluscacides / Q000494:pharmacology*; D012908:Snails / Q000187:drug effects*
D008975:Molluscacides