螞蟥又名水蛭,是肉食性或寄生性的环节动物,种类很多,在稻田、魚池、河流、池沼、丛林或阴湿地方都有发生,尤其在有机貭丰富和鈣貭多的水面,最易生长繁殖。在稻田中生长的螞蟥常以吮吸魚、蛙、人、畜的血液为生。人畜被它叮咬后,常致流失多量血液,且因造成了伤口,容易感染其他疾病,直接影响人畜的健康。因此,防治螞蟥在农业生产上是一个很重要的問題。现将有关文献資料和群众的传統防治方法以及作者近年来进行試驗的初步結果介紹如下: Leech, also known as leeches, is a carnivorous or parasitic links animals, many species, in rice fields, fish ponds, rivers, ponds, jungle or damp places have occurred, especially in the rich organic and calcium Ca and more water, the easiest Growth and reproduction. Leech growing in paddy fields often suck fish, frogs, people, livestock blood. After it is stung by humans and animals, it often results in the loss of large amounts of blood and the wounds are easily infected with other diseases which directly affect the health of humans and animals. Therefore, the prevention and treatment of leech in agricultural production is a very important issue. Now the relevant literature and information and the masses of the traditional methods of prevention and control of the author in recent years, the initial results are as follows: