丘陵地区氯硝柳胺悬浮剂灭螺费用及效果研究

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1、丘陵地区氯硝柳胺悬浮剂灭螺费用及效果研究摘要：［目的］了解25％氯硝柳胺悬浮剂（CN）在丘陵山区果园内灭螺效果，并进行成本-效果评价。［方法］选择宜兴市山丘地区2处有螺果园为试验现场，采用灭螺机喷洒的方法，实验组用CN按2.0g/�、对照组用50％氯硝柳胺乙醇胺盐可湿性粉剂（WPN）按4.0g/�喷洒灭螺，比较两组有螺面积下降率和活螺密度下降率；以有螺面积下降率和活螺密度下降率作为评价指标进行成本-效果分析。［结果］实验组用CN喷洒4次，灭螺后30d有螺面积下降率和活螺密度下降率均为100.0％，有螺面积和活螺密度每下降1个百分点的费用均为56.00元，分别优于对照组

2、WPN的�99.00％、92.25％和92.93元、99.73元。［结论］用CN山区灭螺，操作方便，成本低，灭螺效果好，具有良好应用前景。关键词：氯硝柳胺悬浮剂；钉螺；丘陵山区；费用-效果评价中图分类号：R184.38文献标识码：ＡEvaluationonthemolluscacidaleffectandthecost-effectivenessofsprayingsuspensionconcentrateofniclosamideintheorchardsinhilly10andmountainousareaWEIWen-xue1,YUANJian-fen1,CHE

3、NJian-nong2,ZHOUMing1,WANGTing1(1.WuxiCenterforDiseaseControlandPrevention,Wuxi214002,China;2.YixinCenterforDiseaseControlandPrevention,Yixin200000,ChinaAbstract:［Objective］Toevaluatethemolluscacidaleffectandthecost-effectivenessof25%suspensionconcentrateofniclosamide(CNintheorchardsinh

4、illyandmountainousarea.［Methods］2orchardswithspiralshellsinthehillrareaofYixingwerechosenastheexperimentalfields,andspraymethodwithmolluscacidalmachinewasused.2.0g/m2CNwasusedintheexperimentalgroupand4.0g/m2of50%wettablepowderofniclosamideethanolaminesalt(WPNwasusedinthecontrolgroup.The

5、decreaserateoftheareawithspiralshellsandthedecreaserateofthedensityoflivingspiralshellwerecompared,whichwerealsousedastheevaluatingindicesforcost-effectivenessanalysis.［Results］Boththedecreaserateoftheareawithsnailsandthedecreaserateofthedensityof10livingsnailswere100.0%30daysafterspray

6、ingwithCNfor4times.Theaveragecostfor1%decreaseoftheareawithsnailsandthedensityoflivingsnailswas56.00Yuan.TheseindiceswerebetterthanthoseoftheWPNcontrolgroup(99.00%,�92.25%and92.93Yuan,99.73Yuanrespectively.［Conclusion］ThemolluscacidalmethodwithCNinmountainousareaisconvenientwithlowcosta

7、ndhigheffects,whichsurelyhasgoodapplicationprospects.Keywords:uspensionconcentrateofniclosamide;Oncomelaniahupensis;Hillyandmountainousarea;�Costeffectivenessevaluation丘陵山区血吸虫病流行与钉螺分布密切相关，控制传染源或控制钉螺均可阻断血吸虫病传播，但丘陵山区保虫宿主众多，唯有控制传染源效果显著，而且易于巩固。宜兴市为江苏省19个血吸虫病综合治理重点项目县之一，由于山丘地区环境复杂，钉