Zhu Dan, Zhou Xiao-nong, Zhang Si-qing, Zhang Gonghua, Liu He-xiang, Lu Da-bing, Cai Guo-ying, Ni Quan-zheng, Cao Zhi-guo, Wu Wei-duo
National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Malaria, Schistosomiasis and Filariasis, Shanghai 200025, China.
Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi. 2006 Jun;24(3):200-3.
To evaluate the molluscicidal effect of the META-Li (40% META liquid formulation) against Oncomelania snails in laboratory and field.
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.
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.
META-Li shows high molluscicidal and climbing-inhibition effect on Oncomelania snails.
评估密达利（40%密达液剂）在实验室和现场对钉螺的杀螺效果。
在实验室进行密达利对钉螺的喷雾、浸杀及爬阻试验。在现场采用喷雾法，并与50%氯硝柳胺乙醇胺盐可湿性粉剂作对比。
在实验室，喷雾法处理1、2、3天的密达利LC50分别为0.78、0.44和0.46 g/m²；浸杀法处理1、2、3天的分别为44.4、27.4和24.8 mg/L。在现场按有效成分2 g/m²喷雾密达利，7天后钉螺死亡率在90%以上，与氯硝柳胺相当。
密达利对钉螺具有较高的杀螺及爬阻效果。
