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  • Title: [Molluscicidal effect and cost-effectiveness of suspension concentrate of metaldehyde and niclosamide in the field in Honghu City].
    Author: Hong M.
    Journal: Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi; 2013 Jun; 25(3):320-1. PubMed ID: 24024460.
    Abstract:
    OBJECTIVE: To assess the molluscicidal effect and cost-effectiveness of suspension concentrate of metaldehyde and niclosamide (MNSC) in the field, so as to evaluate the possibility of popularization and application value. METHODS: 26% MNSC and 50% wettable powder of niclosamide (WPN) were used for Oncomelania snail control with the spraying method in the field, and the 15-d molluscicidal effects and costs were investigated. RESULTS: Fifteen days after the spraying, in the beach of Dongjing River, the snail death rates of MNSC and WPN were 89.40% and 88.08%, respectively, and the density reduction rates of MNSC and WPN were 92.35% and 91.67%, respectively. In the marshland of Honghu Lake, the snail death rates of MNSC and WPN were 86.59% and 87.01%, respectively, and the density reduction rates of MNSC and WPN were 90.05% and 91.71%, respectively. There was no significant difference in the molluscicidal effect between two drugs (P > 0.05). The cost of MNSC used in 100 m2 was 15.03 Yuan, while the cost of WPN used in 100 m2 was 16.29 Yuan. CONCLUSION: MNSC has high molluscicidal efficacy, low cost and low impact on environments, which possesses of popularization and application value in the field.
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