怎样防治芹菜“火龙”芹菜“火龙”实际是芹菜斑枯病，有些菜农又叫晚疫病。它是芹莱生产中的最重要病害，不仅生长期发生，而且在贮藏期间仍能继续为害，给生产者和经营者造成较大的经济损失。该病以为害叶片为主，也可为害叶柄及茎部。叶片发病病斑有大斑和小斑两种，大... How to control celery “fire dragon” Celery “fire dragon” is actually celery spot, some farmers also called late blight. It is the most important disease in Celery production. It not only occurs in the growth phase, but also continues to harm during storage, causing great economic losses to the producers and operators. The disease is the main damage to the leaves, pests and stems can also be harmful. There are two major spots and small spots on the leaf spot, big ...