3种灭螺药物枯水期喷洒法和撒粉法灭螺效果  

Molluscicidal effects of 3 molluscicides by spraying and poudrage methods in dry season

作　　者：夏柱国 曹喆 张德波 梁勋寅 袁修柏 尹传琼 程和 

机构地区：[1]湖北省阳新县血吸虫病防治所,阳新435200 [2]湖北省阳新县人民政府血吸虫病防治工作领导小组办公室

出　　处：《中国血吸虫病防治杂志》2014年第4期461-462,465,共3页Chinese Journal of Schistosomiasis Control

摘　　要：目的观察5%杀螺胺乙醇胺盐颗粒、4%螺威粉剂(TDS)和50%氯硝柳胺乙醇胺盐可湿性粉剂(WPN)3种灭螺药物枯水期在湖沼地区采用不同方法的现场灭螺效果,为选择安全、高效的灭螺药物和方法提供依据。方法选择钉螺密度较高的有螺环境,将3种灭螺药物分别按5%杀螺胺乙醇胺盐颗粒30 g/m2、TDS 6 g/m2、WPN 2 g/m2的浓度,采用喷洒法和撒粉法灭螺,比较3种灭螺药物施药后3、7、15 d的灭螺效果。结果施药后15 d,3种药物采用喷洒法灭螺的钉螺校正死亡率分别为79.00%、82.29%、84.83%,采用撒粉法的钉螺校正死亡率分别为97.42%、95.27%、96.62%,撒粉法效果优于喷洒法。结论撒粉法较喷洒法灭螺效果好,该方法可在湖沼地区秋季退水后推广应用。Objective To evaluate the effects of 3 molluscicides namely 5%niclosamide ethanolamine granules,4%“Luo-wei”（Tea-seed distilled saponins,TDS）and 50%wettable powder of niclosamide ethanolamine salt（WPN）by spraying and pou-drage methods in marshland and lake regions in dry season. Methods An environment with a high snail density was chosen as the experimental field,then the spraying and poudrage experiments were carried out in the field to assess the molluscicidal effects of 5%niclosamide ethanolamine granules,TDS and WPN delivered by spraying and poudrage methods with a concentration of 30, 6 and 2 g/m2,respectively,and the molluscicidal effects of the 3 drugs by the two methods were evaluated and compared in differ-ent time. Results After the delivery for 15 d,the adjusted snail death rates of the 5%niclosamide ethanolamine granules,TDS and WPN in the spraying experiment were 79.00%,82.29%and 84.83%,respectively,and those in the poudrage experiments were 97.42%,95.27% and 96.62%,respectively. Conclusion The molluscicidal effect of poudrage method is better than the spraying method,and the former is worthy of further extension and application in the marshland in dry season.

关 键 词：钉螺 5%杀螺胺乙醇胺盐颗粒剂 4%螺威粉剂 50%氯硝柳胺乙醇胺盐可湿性粉剂 灭螺效果 湖沼型地区 

分 类 号：R383.24[医药卫生—医学寄生虫学]