兰花软腐病是严重危害兰花新芽和叶片的细菌病害,最令养兰者头疼,能使全叶变褐,发病严重时,整株枯死,现将其症状及防治方法介绍如下:症状识别。兰花软腐病是主要危害叶片的细菌病害,叶片发病时,开始出现水渍状圆形或椭圆形污白色小斑点。在1-2天内,病斑迅速扩大,变成褐色斑,这时叶表面失去光泽,并略具皱纹,病部组织稍凹陷。在卡特兰、蝴蝶兰等洋兰上主要危害新生叶片,表现为叶片上出现水渍状斑点,逐渐由暗绿色变成褐色至黑褐色;在春兰、四季兰等中国兰上主要表现为先 Orchids soft rot disease is seriously endangering the sprout and leaves of bacterial diseases, the most Lancang headache, browning the whole leaf, the incidence is severe, the whole body dead, now its symptoms and prevention methods are described below: Symptoms identification. Orchids soft rot disease is the main bacterial disease damage leaves, the onset of leaves, began to appear water-like round or oval-shaped small stains. Within 1-2 days, the lesion expanded rapidly and became a brown spot. At this time, the leaf surface was lustrous and slightly wrinkled. The diseased part was slightly dented. In Cattleya, Phalaenopsis and other blue-green on the main hazards of new leaves, the performance of the leaves appear water-like spots, gradually from dark green to brown to dark brown; in Chunlan, Siji Lan and other Chinese blue mainly for the first