芹菜班枯病又叫晚疫病,叶斑病,俗称“火龙”。是大棚芹菜的重要病害,而且贮藏期间可继续为害,对质量和产量都有很大的影响。 一、发病症状:植株地上部分都能感病受害,但以叶片为主。发病最初在叶片上产生浅黄色水渍状小病斑,呈园形或近园形,多群集性,常相 Celery Panicle also known as late blight, leaf spot, commonly known as “fire dragon.” Celery greenhouse is an important disease, but also continue to damage during storage, quality and yield have a great impact. First, the incidence of symptoms: plant parts of the disease can be affected, but mainly leaves. The incidence of the first light yellow water stain on the leaves of a small lesion, was park or near-park, multi-cluster, often