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我县属山丘地区,青云乡夏村水库上渗水岩石壁有螺,石壁坡度在20～80度,钉螺孳生最高处11.3m.由于泉水常年不断,杂草丛生,缝隙甚多,20余年来虽经多次药物灭螺仍不彻底。1980年春查出有螺面积500m~2,钉螺平均密度为4.03只/0.11m~2.改用了综合性灭螺措施,效果较满意。 一、灭螺措施灭螺前先架梯割除荆棘杂草,集中待干后就地火烧。开沟排水,缩小渗水面积。用
My county is a hill area, Qingyun Township Xiacun reservoir seepage rock wall with snail, stone wall slope in the 20 to 80 degrees, the highest snail breeding 11.3m. As the spring perennial, many weeds, gaps, more than 20 years Although many drugs snail is not complete. The spring of 1980 found a snail area of 500m ~ 2, snail average density of 4.03 /0.11m ~ 2. Switch to a comprehensive snail measures, the effect is more satisfactory. First, the snail snail measures before the snail cut off the first ladder weeds, concentrated to be dry after the fire. Drainage drainage, reduce the seepage area. use