蜗牛是本地蔬菜作物上主要有害生物之一,近年来发生面积每年在3万 hm~2以上。一般田块667m~2有蜗牛1～1.5万头,高的田块达3万头以上,对叶菜类蔬菜以及果瓜、豆类蔬菜幼苗危害损失较重,轻则移苗补缺,重则毁苗重栽。1998年,我们选用密达等三种灭蜗剂进 Snails are one of the major pests on local vegetable crops, with an area of ​​more than 30,000 hm 2 per year in recent years. The general plots 667m ~ 2 have 1 to 15,000 snails, high plots of more than 30,000, on the leafy vegetables and fruit melons, beans, vegetable seedlings hardest to lose weight, while the transfer of seedlings to fill the gap, while the weight is Destroyed seedlings planted. In 1998, we used Mithridone and other three kinds of anti-snail agent into