烟草野火病属细菌性病害。主要烟区普遍发生,严重影响着烟叶质量,成为烤烟的主要病害之一。一、病害症状野火病在烤烟苗期和生长期均可出现。开始叶上呈黑褐色水渍小斑,圆形,病斑周围有明显的黄色晕圈,几个病斑可愈合形成不规则状斑块,有的产生轮纹,干燥时病斑脱落,形成穿孔。 Tobacco wildfire is a bacterial disease. The prevalence of the main tobacco-producing areas has seriously affected the quality of the tobacco and has become one of the major diseases of tobacco. First, the symptoms of disease Wildfire in tobacco seedling and growing stage can occur. The beginning of the leaves was dark brown water stains small spots, round, obvious yellow halo around the lesion, several lesions can heal to form irregular plaques, and some produce wheel pattern, dry lesions fall off to form perforation.