title: [Study on the molluscicidal effect of META-Li against Oncomelania hupensis].
abstract: 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.
authors.affiliation: National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Malaria, Schistosomiasis and Filariasis, Shanghai 200025, China.
authors.forename: Dan
authors.initials: D
authors.lastname: Zhu
authors.forename: Xiao-nong
authors.initials: XN
authors.lastname: Zhou
authors.forename: Si-qing
authors.initials: SQ
authors.lastname: Zhang
authors.forename: Gonghua
authors.initials: G
authors.lastname: Zhang
authors.forename: He-xiang
authors.initials: HX
authors.lastname: Liu
authors.forename: Da-bing
authors.initials: DB
authors.lastname: Lu
authors.forename: Guo-ying
authors.initials: GY
authors.lastname: Cai
authors.forename: Quan-zheng
authors.initials: QZ
authors.lastname: Ni
authors.forename: Zhi-guo
authors.initials: ZG
authors.lastname: Cao
authors.forename: Wei-duo
authors.initials: WD
authors.lastname: Wu
mesh_terms: D000818:Animals; D008975:Molluscacides / Q000494:pharmacology*; D012908:Snails / Q000187:drug effects*
chemical_list: D008975:Molluscacides