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[Molluscicidal effect and cost-effectiveness of suspension concentrate of metaldehyde and niclosamide in the field in Honghu City].

[Article in Chinese]

Author information

  • Honghu Municipal Institute of Schistosomiasis Prevention and Control, Hubei Province, Honghu 433200, China.

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.

PMID:
24024460
[PubMed - indexed for MEDLINE]

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