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6月26日，杭州西湖水域管理處的工作人員正在北里湖用棕葉打撈水底的螺螄。由于西湖水底螺螄密度過大，對水生植物生長造成影響，西湖水域管理處使用了新武器，把粽葉放入水底，讓螺螄爬到粽葉后再捕撈。據悉，這是浙江偉大園林公司幾個研究生想出的新辦法，截至6月26日已經試驗4天，每天可清理螺螄五六十斤。（（浙江在線記者 王堅穎 林云龍 汪馳超 攝））
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