贵阳地区野蛞蝓发生规律及防治技术

Regularity of Outbreak and Control of Agriolimax cagrestis in Guiyang Region

野蛞蝓在贵阳蔬菜地区一年发生三代，主要以二、三代成、幼体越冬。以春、夏季发生量大，危害重；秋、冬季发生量较小，危害较轻。全年田间数量消长有三个明显的高峰，即５月下旬至６月上旬、７月下旬至８月上旬和１０月上旬，以第一次高峰的田间数量大。采取压低越冬虫源基数，恶化各虫态的生存环境，抓住第一次高峰期用药防治，酌情用药防治第二、三次高峰，能收到较好的防治效果。

Three generations of Agriolimax agrestis Linnaens happened in Guiyang areas,mainly overwintering with the adults or lava in the second or third generation.The population of it was larger and the damage was heavier in Spring and Summer than in Autumn and Winter.There were three notable peaks a year which happened from the May to early June,late July to early August and early October .The largest population happened during the period of the first peak .The better control could be achieved by decreasing the overwinter population,damage the ecological environment and using chemicals in the first peak and using or not chemicals according to the population in the second and third peak.