CAJ | 학술논문

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。
목적：관찰5%살라알을순알염과립、4%라위분제（TDS）화50%록초류알을순알염가습성분제（WPN）3충멸라약물고수기재호소지구채용불동방법적현장멸라효과，위선택안전、고효적멸라약물화방법제공의거。방법선택정라밀도교고적유라배경，장3충멸라약물분별안5%살라알을순알염과립30 g/m2、TDS 6 g/m2、WPN 2 g/m2적농도，채용분쇄법화살분법멸라，비교3충멸라약물시약후3、7、15 d적멸라효과。결과시약후15 d ，3충약물채용분쇄법멸라적정라교정사망솔분별위79.00%、82.29%、84.83%，채용살분법적정라교정사망솔분별위97.42%、95.27%、96.62%，살분법효과우우분쇄법。결론살분법교분쇄법멸라효과호，해방법가재호소지구추계퇴수후추엄응용。
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.