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福寿螺具有适应性广,繁殖能力强。食性杂,食量大,扩散蔓延快的特点。以为害水稻为主,其次为害蔬菜、红薯等。它以幼嫩稻株和叶片为蚕食对象,特别是秧田的2～4叶期的秧苗和刚分蘖的嫩苗被食最多,使禾苗无法生长而缺苗,受害严重田块缺苗率达50～60％,有些田块秧苗被吃光。福寿螺在水利条件好、土壤肥沃、作物长势浓绿的田地及水生植物丰富的沟边、水塘边分布最多。防治措施:一、综合防治。运用多种防治手段,控制其扩散为害。
Snails have wide adaptability, reproductive ability. Food miscellaneous, food intake, spreading spread fast features. To harm the main rice, followed by harmful vegetables, sweet potatoes and so on. It is the young rice plants and leaves for the eroded object, especially in the seedling 2 to 4 leaf stage seedlings and just tillering tender enough to eat, so that seedlings can not grow and lack of seedlings, severe damage to the field of seedlings rate of 50 ~ 60%, some field seedlings are eaten. Lucky snails in water conservancy conditions, fertile soil, crops grow thick green fields and aquatic plants rich ditch edge, the largest pool distribution. Control measures: First, comprehensive prevention and treatment. Use a variety of control measures to control the proliferation of damage.