Chin J Schisto Control ›› 2013, Vol. 25 ›› Issue (2): 182-.

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Molluscicidal effect of 10% LDS in fields

HANG Xia1 | ZHANG Hua-ming 1 |LIU Xiong 1 |RONG Xian-bing 2 |YANG Rui 3   

  1. 1 Jiangling Institute of Schistosomiasis Prevention and Control|Hubei Province|Jiangling 434100|China;2 Institute of Schistoso? miasis Control|Jingzhou Municipal Center for Disease Prevention and Control|Hubei Province|China;3 Public Health College| Wuhan University| China
  • Online:2013-04-15 Published:2013-04-24

10%氯代水杨胺可湿性粉剂现场灭螺效果观察

张瑕1|张华明1|刘雄1|荣先斌2|杨蕊3   

  1. 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
  • 作者简介:张瑕| 大专| 主管医师。研究方向: 血吸虫病防治

Abstract:

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 molluscicidal effects with the immersion,insufflation and powdering methods,and 50% wettable powder of ni? closamide ethanolamine salt (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 molluscicidal effect.

Key words: Oncomelania hupensis; Salt of quinoid?2′, 5?dichloro?4′?nitrosalicylanilide(LDS); Molluscicidal effect

摘要:

目的 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 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 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/m3 (P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/m2 (P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 结论 LDS有一定的浸杀、 喷洒和撒粉杀螺效果, 值得推广应用。

关键词: 钉螺; 氯代水杨胺可湿性粉剂; 灭螺效果

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