江苏沿海地区农田蜗牛的发生特点与防治对策

本地区为害农作物蜗牛主要有同型巴蜗牛和灰巴蜗牛，通过田间系统调查和室内外饲养观察，基本模清了江苏沿海地区，农田蜗牛的卵期和幼贝期，是其生命活动中的薄弱环节和开展防治的有利时期，农作物的苗期和花荚期（花铃期）是对农田蜗牛最敏感的生育期，亦即需要重点保护的关键时段；秋熟作物受蜗牛危害重于夏熟作物，根据当地的气候特点，每年春夏之交4－6月和秋季8－10月的温湿度条件，最适宜于两种蜗牛的生存，活动和取食，调查结果表明，该时期亦正是本地区蜗牛发生为害的两个峰期，经过试验示范，总结出一整套农田蜗牛的综合治理措施，筛选出一批除蜗保叶效果达80％左右,捅分别用作为作物前期毒饵诱杀的颗粒剂和后期喷雾除蜗的可湿性粉剂，并且针对江苏沿海地区，农田蜗牛的发生特点和灾变规律，提出了对农作物采用“播前耕翻（爆卵）压基数，综合措施保全苗（壮苗），中后期化防夺丰收”。的总体防治策略。

Occurrence and control of snails in fields in Jiangsu coastal region

Bradybaena similaris Ferussac and Bradybaena ravida Benson (Bradybaenidae) are the main snail pests for the agricultural crops in the coastal region of Jiangsu province. The research results showed that the seasons from April to June and from August to October were suitable for occurrence of snails, and were also the damage peak periods of snails. According to the occurrence regularity, the control tactics for the snail pests were put forward in this paper.