›› 2006, Vol. 24 ›› Issue (3): 10-203.

• 实验报道 • Previous Articles     Next Articles

Study on the Molluscicidal Effect of META-Li Against Oncomelania hupensis

ZHU Dan1;ZHOU Xiao-nong1;ZHANG Si-qing2;ZHANG Gonghua2;LIU He-xiang1;LU Da-bing2;CAI Guo-ying1;NI Quan-zheng1;CAO Zhi-guo2;WU Wei-duo2   

  1. 1 National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Malaria, Schistosomiasis and Filariasis, Shanghai 200025, China; 2 Anhui Institute of Parasitic diseases, Wuhu 241000, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2006-06-30 Published:2006-06-30

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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/m2 of META-Li in the field， the snail death rate was above 90% after 7 days， similar to that of niclosamide. Conclusion META-Li shows high molluscicidal and climbing-inhibition effect on Oncomelania snails.

Key words: Meta-Li, Metaldehyde, Oncomelania hupensis, Molluscicide