武山县普通塑料大棚芹菜，种植面积１．５０万亩。仅次于韭菜的种植，占保护地蔬菜面积３．７０万亩的４０． ５４％，己发展成为该县大宗蔬菜生产的主要品种之一。据调查统计，芹菜斑枯病的发病棚率已达４３． ６０ ％，且呈上升趋势，由于种植面积的扩大，连年重茬连作，斑枯 Wushan common plastic greenhouse celery, planting area of ​​15,000 mu. Second only to the cultivation of leeks, accounting for 37,000 mu of vegetable area of ​​40. 54%, has developed into one of the major varieties of vegetable production in the county. According to the survey, the incidence of celery blight has reached 43%. 60%, and the upward trend, due to the expansion of planting area, continuous cropping successive years, spot