福寿螺又称大瓶螺,八十年代初自南美传入两广饲养,因销路不畅而被弃置野外,进入沟溪,成为一种新的有害生物。福寿螺,食性杂,食量大,繁殖快.主要为害水稻、水生蔬菜、慈菇,也取食茨实,菱角.紫云英、红 Spirodela spiralis, also known as the big bottle snail, introduced into South America from South America in the early eighties feeding, due to poor sales and abandoned the wild, into the ditch Creek, a new pest. Snakehead snails, food miscellaneous, food intake, fast propagation. The main damage to rice, aquatic vegetables, mushrooms,