姜瘟主要特征是姜地下茎腐烂 ,病斑呈水渍状 ,黄褐色 ,内部组织逐渐变软、腐烂 ,并流出污白汁液 ,有恶臭。茎部发病 ,先呈暗紫色 ,后变褐色腐烂。病株叶片萎蔫变黄干枯。发病迅速 ,蔓延全田。防治方法 :选用无病种姜并进行消毒处理 ,或从无病地内留种。对外地调进的种姜要严格 The main characteristic of Jiang-jing is that underground stems of ginger are rotted, the spots are water-stains and brown, the internal tissues are gradually softened and decayed, and out of the greasy juice with malodour. The incidence of stems, dark purple first, then brown rot. Diseased leaves wilting yellowing. Rapid onset, spread throughout the field. Prevention and treatment methods: selection of disease-free ginger and disinfection, or leave the disease from disease-free. The introduction of foreign species of ginger to be strict