山丘地区强螺杀粉剂喷撒结合土地翻耕灭螺效果初步观察

Observation on molluscicidal effect of qiangluocide powder with ploughing soil

选择山丘型螺点的山坡涧滩为试验现场,单独应用或联合应用粉剂喷撒、土地翻耕、"包饺子"、常规喷洒等方法灭螺。154d后观察粉剂加翻耕组有螺面积下降率和活螺密度下降率最高,分别为88.50%和72.76%,其余各组从高到低排列依次为:"包饺子"组、常规喷洒组、单纯粉剂组和单纯翻耕组。表明粉剂加翻耕灭螺效果较好。

The mountainous areas were choosed as testing field to evaluate the molluscicidal effect of powder, ploughing soil, ＂making dumpling＂, normal insufflation and powder with ploughing soil. After 154 days, the method of powder with ploughing soil was the best, the area of snail descended 88.50% and the reduced rate of snail density was 2.76%, the followed methods were ＂making dumpling＂, normal insufflation, powder and ploughing soil.