聊城市蜗牛发生危害状况及防治措施

Biological Study of Snails and Corresponding Control Methods in Liaocheng

近年来聊城市大部分地区的农作物都遭受到蜗牛不同程度的危害,尤以2009年夏天为甚,为了进一步了解并掌握蜗牛的生活习性与发生规律,探讨出经济有效的综合防治措施,采取人工饲养与田间调查相结合的方法,研究了蜗牛在聊城市的发生规律、危害状况、生活习性和防治方法。结果表明：聊城市蜗牛以灰巴蜗牛为主,1~2 a发生1代,5~6月和9~10月是发生高峰期,喜食白菜等蔬菜作物。蜗牛的危害可采用多种方法进行综合防治,部分化学药剂,如密达、灭旱螺有较好的防治效果。

In recent years,most of the crops had suffered varying degrees from snails in the city of Liaocheng.Especially in the summer of 2009.To find out the living habits,snails were feed and observed in lab,complementary with the investigation in fields.Control effect with some pesticides were also studied.Result showed that the snails occurred in Liaocheng was mostly Bradybaena ravida,which complete one generation within 1~2 years.It had two heavy occurrences peak in a year,which was 5~6 months and 9~10 months respectively.The favorite food of snails was cabbage and other vegetables.To reduce the damage,IPM（Integrated Pest Management） control was feasible measures,some pesticides such as Metaldehyde also has good control effect.