10%氯代水杨胺可湿性粉剂现场灭螺效果观察  

Molluscicidal effect of 10% LDS in fields

作　　者：张瑕 张华明 刘雄 荣先斌[2] 杨蕊[3] 

机构地区：[1]湖北省江陵县血吸虫病防治所,江陵434100 [2]湖北省荆州市疾病预防控制中心血吸虫病防治所 [3]武汉大学公共卫生学院

出　　处：《中国血吸虫病防治杂志》2013年第2期182-183,186,共3页Chinese Journal of Schistosomiasis Control

摘　　要：目的评价10%氯代水杨胺(LDS)可湿性粉剂现场灭螺效果,为新型灭螺药物LDS现场推广应用提供科学依据。方法选择钉螺密度相对较高的现场,采用不同浓度的LDS分别进行浸杀法、喷洒法与撒粉法药物灭螺,并与50%氯硝柳胺乙醇胺盐可湿性粉剂(WPN)进行灭螺效果比较。结果经分析,现场浸杀法施药3 d,LDS 0.1、0.2 g/m3的钉螺死亡率低于对照组WPN 2 g/m(3P均<0.01),0.4、0.6、0.8 g/m3浓度的灭螺效果与对照组无差异(P均>0.05);现场喷洒和现场撒粉施药7 d,LDS 0.2、0.4 g/m2浓度灭螺效果低于对照组WPN 2 g/m(2P均<0.01),0.6、0.8、1.0 g/m2浓度灭螺效果与对照组无差异(P均>0.05)。结论LDS有一定的浸杀、喷洒和撒粉杀螺效果,值得推广应用。Objective To evaluate the molluscicidal effects of 10% salt of quinoid-2＇, 5-dichloro-4＇-nitrosalicylanilide （LDS） on Oncomelania hupensis in the fields, so as to provide the evidence for the application of LDS in the fields. Methods The fields where O. hupensis density was relative high were selected as the experimental area and the different concentrations of LDS were used for molluscieidal effects with the immersion, insufflation and powdering methods, and 50% wettable powder of ni- elosamide ethanolamine sah（WPN）was used as the control. Results With the immersion method for 3 days, the snail death rates of LDS （0.1, 0.2 g/m3） were lower than those of WPN （2 g/m3, P 〈 0.01）, but the snail death rates of LDS （0.4, 0.6, 0.8 g/m3） were similar with those of WPN （2 g/m3, P 〉 0.05）. With the insufflation and powdering methods for 7 days, the snail death rates of LDS （0.2, 0.4 g/m2） were lower than those of WPN （2 g/m2, P 〈 0.01 ）, but the snail death rates of LDS （0.6, 0.8, 1.0 g/m2） were similar with those of WPN （2 g/m2, P 〉 0.05）. Conclusion LDS has some molluscieidal effect.

关 键 词：钉螺 氯代水杨胺可湿性粉剂 灭螺效果 

分 类 号：R383.24[医药卫生—医学寄生虫学]