Effect of a novel plant molluscicide "Luo-wei" against Oncomelania hupensis in plateau mountain areas

To evaluate the effect of a novel plant molluscicide, 4%"Luo-wei" (Tea-seed distilled saponins, TDS) against Oncomelania hupensis snails in plateau mountain areas in Yunnan Province. The immersing and spraying experiments were carried out in the ditches and grassland of Xiaolian Administra...

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Published inZhongguo xue xi chong bing fang zhi za zhi Vol. 25; no. 6; p. 590
Main Authors Huang, Ning-Bo, Li, Bing-Gui, Li, Wen-Bao, Feng, Xi-Guang, Xiong, Meng-Tao, Li, Liang, Mu, Liang-Xian, Tian, Shu-Hui, Li, Ping, Song, Zhi-Zhong, Jia, Tie-Wu
Format Journal Article
LanguageChinese
Published China 01.12.2013
Subjects
Animals
China
Molluscacides - pharmacology
Niclosamide - pharmacology
Population Density
Saponins - pharmacology
Snails - drug effects
China
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Summary:To evaluate the effect of a novel plant molluscicide, 4%"Luo-wei" (Tea-seed distilled saponins, TDS) against Oncomelania hupensis snails in plateau mountain areas in Yunnan Province. The immersing and spraying experiments were carried out in the ditches and grassland of Xiaolian Administrative Village in Heqing County, Yunnan Province, to assess the molluscicidal effect of 4% TDS comparing with 50% wettable powder of niclosamide ethanolamine salt (WPN) in different environments and time. After immersion for 24, 48 h and 72 h, the snail death rates were 70.67%, 87.33% and 98.67% in the TDS group, whereas being 77.33%, 96.67% and 100.00% in the WPN group, respectively. The differences of the death rates between the two groups 24 h and 72 h after immersing were not statistically significant ( chi2(24h) =1.73, chi2(72h) = 2.01, both P values > 0.05). Seven days after the immersing experiments, the occurrence rate of frames with living snails and the death rate of snails were 20.00% and 93.03% in the TDS group, wh
ISSN:1005-6661