柑橘溃疡病是国内外植物检疫性病害。近年来,由于苗木的盲目调运引种和生产上的疏忽,各地柑橘产区的溃疡病有上升蔓延趋势,应在生产上引起重视,以免对各地柑橘无公害商品化生产和出口外销形成威胁。症状及发病规律柑橘溃疡病是一种细菌性病害,主要危害柑橘叶片、枝梢和果实,产生溃疡病斑。受害叶片开始时在叶背出现淡黄色油渍状小斑点,继而发展成近圆形、淡褐色主褐色病斑,叶片病部正反面突起, Citrus canker disease is phytosanitary disease both at home and abroad. In recent years, owing to the blind transfer of seedlings and the negligence of production, the ulcer disease in citrus growing areas has the tendency to rise and spread, which should be paid attention to in production so as to avoid the threat of pollution-free commercial production and export of citrus everywhere. Symptoms and pathogenesis Citrus canker disease is a bacterial disease, the main hazard to citrus leaves, shoots and fruits, resulting in ulcer lesions. The victim leaves began to appear in the back of the leaves yellowish-brown spots of small spots, and then developed into a nearly circular, light brown main brown spots, front and back of the Ministry of disease protruding leaves,