用有毒的化学药物来消灭传播疾病的螺螄造成环境污染必然导致严格限制这些药物的使用,因此需要探索其他方法如生物防制。鱼、蛙、龟、水禽以及一些哺乳类动物都吃螺类,但它们是一般的捕食性动物,并不专食螺 The use of toxic chemicals to eradicate spirones that transmit disease causes environmental pollution that inevitably leads to a severe restriction on the use of these drugs and therefore requires exploration of other approaches such as biological control. Fish, frogs, turtles, waterfowl, and some mammals eat snails, but they are generally predators and are not superficial