瘟病又称腐烂病或青枯病 ,为姜的主要病害。症状识别此病主要侵害地下茎及根部 ,发病后肉质茎初呈水浸状 ,灰黄色至黄褐色 ,以后内部组织逐渐软化腐烂 ,仅残留表皮 ,挤压病部即可渗出污白色菌液 ,散发臭味。根部受害亦呈淡黄褐色坏死 ,最后腐烂。地上茎被害呈暗紫色 ,内部组织? Blast also known as rot or bacterial wilt, the main disease of ginger. Symptoms identification The disease mainly affects underground stems and roots, the onset of succulent stems were initially flooded, gray yellow to brown, after the internal tissue gradually softened and decay, leaving only the epidermis, squeeze the diseased part of the effusion can stain white bacteria, Disgusting odor. Root damage also showed light brown necrosis, the final decay. Aboveground stems were dark purple, internal organization?