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采用10%氯代水杨胺可湿性粉剂(LDS)人工拌沙撒粉法、26%四聚杀螺胺悬浮剂(MNSC)和50%氯硝柳胺乙醇胺盐可湿性粉剂(WPN)喷洒法在云南山区开展现场杀螺试验,灭螺后7、15、30 d,LDS组钉螺死亡率、活螺密度下降率、活螺框出现率分别为72.69%～87.16%、74.10%～88.84%和20%～30%,MNSC组分别为66.21%～91.06%、69.55%～91.36%和19.44%～27.78%,WPN组分别为78.10%～90.18%、82.44%～91.60%和17.50%～20%。结果显示,LDS、MNSC和WPN灭螺效果基本接近。
The artificial sand mixing and powdering method with 26% tetramethasone spirulina suspension (MNSC) and 50% niclosamide ethanolamine salt wettable powder (WPN) spraying method were adopted by using 10% chlorosalicylamide wettable powder (LDS) In the mountainous area of Yunnan Province, the snail killing test was conducted. After 7, 15 and 30 days after snail elimination, the incidence of snail death, the reduction of live snail density and the percentage of live snails in LDS group were 72.69% -87.16%, 74.10% -88.84% and 20% ~ 30% in MNSC group, 66.21% ~ 91.06%, 69.55% ~ 91.36% and 19.44% ~ 27.78% in MNSC group, 78.10% ~ 90.18%, 82.44% ~ 91.60% and 17.50% ~ 20% in WPN group. The results show that LDS, MNSC and WPN snail control effect are basically close.