芹菜斑枯病又称晚疫病,叶枯病,俗称火龙,仅为害芹菜,是芹菜种植上发生最普遍、最严重的病害。近年来,大棚芹菜斑枯病的发生与为害逐年加重,已成为制约芹菜高效优质生产的关键因素之一。1症状识别发病由下部向上发展,初时病斑圆形浅黄色,水浸状,边缘明显,以后发展为不规则形。斑块颜 Celery blight, also known as late blight, leaf blight, commonly known as fire dragon, only harmful celery, celery is the most common occurrence, the most serious diseases. In recent years, celery leaf spot in greenhouse incidence and damage increase year by year, has become a constraint celery efficiency and quality of production of one of the key factors. 1 Symptoms Identification of the disease from the lower part of the upward development of the initial spot yellowish pale, flooding, the edge of the obvious, later developed into an irregular shape. Plaque color