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目的 了解硼镁石粉、氯烟复合物在山丘地区的灭螺效果。方法 采用硼镁石粉 80 g/ m2干撒 ,氯烟复合物 0 .8g/ m2喷洒 ,同时与氯硝柳胺 2 g/ m2喷洒和空白对照作对比。结果 硼镁石粉撒药后 7d,其灭螺效果不如氯硝柳胺 ,但 15 d及 3 0 d后其活螺密度即与氯硝柳胺差异无显著性 ,钉螺死亡率在 3 0 d显著高于氯硝柳胺 ,活螺密度持续下降。氯烟复合物灭螺效果不明显。结论 硼镁石粉灭螺效果较好 ,随着时间延长 ,其灭螺效果逐渐上升
OBJECTIVE To understand the snail killing effect of boron phosphate rock and chlorine smoke complex in the hills. The method was sprayed with 0,08 g / m 2 of boron-magnesia powder and 2 g / m 2 of niclosamide sprayed with blank control. Results On the 7th day after spraying, the effect of snail killing was not as good as that of niclosamide. However, the live snail density was not significantly different from that of niclosamide on the 15th and 30th days, and the mortality of Oncomelania snails was significantly higher on 30 days Higher than niclosamide, live screw density continued to decline. Chlorine smoke compound snail effect is not obvious. Conclusions Magnesite powder is effective in eliminating molluscicidal effect and the molluscicidal effect gradually increases with time