Molluscicidal effects of different formulations of niclosamide ethanolamine salt in marshlands
10.16250/j.32.1374.2018095
- VernacularTitle:氯硝柳胺乙醇胺盐不同剂型在江滩地区灭螺效果
- Author:
Wei LI
1
;
Ben-rong YOU
2
;
Liang SHI
1
;
Heng-guang HU
2
;
Xiao-jian CHEN
2
;
Qiao-fang MEI
2
;
Kun YANG
1
Author Information
1. Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
2. Luhe District Center for Diseases Control and Prevention, Nanjing City, Jiangsu Province, China
- Publication Type:Journal Article
- Keywords:
Oncomelania hupensis snail;
25% suspension concentrate of niclosamide ethanolamine salt;
50% wettable powder formulation of niclosamide ethanolamine salt;
4% niclosamide ethanolamine salt dustable powder;
Molluscicidal efficacy;
Cost-effectiveness;
Marshland area
- From:
Chinese Journal of Schistosomiasis Control
2018;30(5):540-543
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the molluscicidal effects of different formulations of niclosamide ethanolamine salt in marshlands. Methods The molluscicidal effects of spraying with 25% suspension concentrate of niclosamide ethanolamine salt (25% SCN) and 50% wettable powder formulation of niclosamide ethanolamine salt (50% WPN), and dusting with 4% niclosamide ethanolamine salt dustable powder (4% DP) for controlling Oncomelania hupensis snails were investigated and compared in the fields, and the cost-effectiveness was analyzed. Results The corrected mortalities and the reduced rates of density of snails were 54.37%, 91.70%, 92.76%, 79.50%, and 59.55%, 95.93%, 97.63%, 94.15%, respectively, on 3, 7, 15, 30 d after spaying with 25% SCN, those on 3, 7, 15, 30 d after dusting with 4% DP were 59.10%, 91.83%, 95.56%, 93.34% and 65.03%, 94.93%, 97.61%, 97.28%, respectively; and those on 3, 7, 15, 30 d after spraying with 50% WPN were 76.29%, 91.68%, 93.12%, 81.59% and 81.24%, 97.02%, 97.84%, 95.27%, respectively. The cost of spraying with 25% SCN was 0.21 Yuan/m2, that of dusting with 4% DP was 0.39 Yuan/m2, and that of spraying with 50% WPN was 0.23 Yuan/m2 for snail control in the marshland. The cost of reduced one percentage of the corrected mortalities and the density of snails in controlling snails by 25% SCN, 4% DP and 50% WPN on 15 d were 22.68, 40.63, 25.17 Yuan and 21.54, 39.78, 23.95 Yuan, respectively. Conclusions The three different formulations of niclosamide are reliable and effective for snail control in marshlands. There are some differences among the different molluscicides in start time, pharmacodynamic characteristics, spraying methods in the field, cost of snail control, and influencing factors. Therefore, we need reasonably select the suitable molluscicides according to the environmental characteristics and working condition.
