中国血吸虫病防治杂志

• 论著 •    

5%杀螺胺乙醇胺盐颗粒剂云南山区现场杀螺效果

冯锡光1|李炳桂2*|李文豹2|吴明寿1|黄宁波1|张云1|熊孟韬1|母亮先2|田淑惠2|李萍2|沈美芬1|王丽芳1|宋静1|孙佳昱1   

  1. 1 云南省地方病防治研究所(大理671000);2 云南省鹤庆县血吸虫病防治站
  • 收稿日期:2014-11-11 出版日期:2015-03-23 发布日期:2015-03-23
  • 通讯作者: 李炳桂
  • 作者简介:冯锡光|男|副主任医师。研究方向:血吸虫病控制和管理

Molluscicidal effect of 5% powder of niclosamide ethanolamine salt granules (NEG)in field of mountainous areas in Yunnan Province

FENG Xi?guang1|LI Bing?gui2*|LI Wen?bao2|WU Ming?shou1|HUANG Ning?bo1|ZHANG Yun1|XIONG Meng?tao1|MU Li?
ang?xian2|TIAN Shu?hui2|LI Ping2|SHEN Mei?fen1|WANG Ii?fang1|SONG Jing1|SUN Jia?yu1   

  1. 1 Yunnan Institute of Endemic Diseases Control and Prevention|Dali 671000|China;2 Heqing Station of Schistosomiasis Control|China
  • Received:2014-11-11 Online:2015-03-23 Published:2015-03-23

摘要:

目的  观察5%杀螺胺乙醇胺盐颗粒剂(NEG)在云南高原山区的现场杀螺效果。方法  在云南省鹤庆县金墩乡孝廉行政村北登自然村选取钉螺孳生草地开展现场灭螺试验。试验分7组,即30、40 g/m2和50 g/m2 NEG组,40 g/m2 NEG + 清障组,6 g/m2 50%氯硝柳胺乙醇胺盐粉剂(WPN)组,6 g/m2 WPN + 清障组和清水对照组,灭螺7、15、30 d后,比较不同组钉螺死亡率和活螺密度变化。结果  施药7、15、30 d 后,30、40 g/m2和50 g/m2 NEG组钉螺死亡率为72.75%~95.83%,活螺平均密度下降率为72.26%~95.54%;随着药物剂量的增加,钉螺死亡率逐渐上升,活螺平均密度逐渐下降。施药7、15、30 d后,40 g/m2 NEG组钉螺死亡率为81.69%~87.19%,活螺平均密度下降率为81.42%~87.91%;40 g/m2 NEG +除障组钉螺死亡率为84.89%~88.24%,活螺平均密度下降率为85.63%~88.22%;6 g/m2 WPN组钉螺死亡率为85.23%~86.17%,活螺平均密度下降率为85.76%~86.05%;6 g/m2 WPN +除障组钉螺死亡率为88.89%~92.10%,活螺平均密度下降率为86.71%~92.20%。灭螺前进行割草等环境清障后的灭螺效果相对较好。结论  NEG在云南山区现场杀螺效果较好,是一种适合高原山区现场应用的新型杀螺剂。

关键词: 钉螺, 5%杀螺胺乙醇胺盐颗粒剂, 50%氯硝柳胺乙醇胺盐粉剂, 杀螺效果, 山区

Abstract:

Objective  To evaluate the molluscicidal effect of 5% powder of niclosamide ethanolamine salt granules(NEG)in the field of mountainous areas in Yunnan Province. Methods  The grasslands with Oncomelania hupensis snail habitats were chosen in Beideng Village,Heqing County,Yunnan Province,and were divided into 7 groups(groups of NEG 30 g/m2,NEG 40 g/m2,NEG 50 g/m2,NEG 40 g/m2 plus obstacle cleared,50% niclosamide ethanolamine salt wettable powder(WPN)6 g/m2,WPN 6 g/m2 plus obstacle cleared,and fresh water). The snail death rates and the densities of living snails were investigated and the results were compared in the different groups 7 days,15 days,and 30 days after the implementation. Result  Seven days,15 days,and 30 days after the implementation,the snail death rates of the groups of NEG 30 g/m2,40 g/m2,50 g/m2 were
from 72.75% to 95.83%,and the average descent rates of living snail densities were from 72.26% to 95.54%. Seven days,15 days,and 30 days after the implementation,in the NEG 40 g/m2 group,the snail death rates were from 81.69% to 87.19% and the average descent rates of living snail densities were from 81.42% to 87.91%;in the NEG 40 g/m2 plus obstacle cleared group,the snail death rates were from 84.89% to 88.24% and the average descent rates of living snail densities were from 85.63%~88.22%;in the WPN 6 g/m2 group,the snail death rates were from 85.23% to 86.17% and the average descent rates of living snail densities were from 85.76% to 86.05%;in the WPN 6 g/m2 plus obstacle cleared group,the snail death rates were from 88.89% to 92.10% and the average descent rates of living snail densities were from 86.71% to 92.20%. The obstacle cleared im?
proved the molluscicidal effect. Conclusion  NEG has a good molluscicidal effect in the field of mountainous areas in Yunnan Province.

Key words: Oncomelania hupensis, 5% powder of ethanolamine salt granules(NEG), 50% niclosamide ethanolamine salt wettable powder(WPN), Molluscicidal effect, Mountainous area

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