甘薯瘟病 (Ralstoniasolanacearum )是我国南方甘薯生产上危害极大的病害 ,也是国内植物检疫对象。在国外尚无对此病的研究报道 ,在国内的广西、广东、江西、湖南、浙江、福建等省先后开展甘薯瘟病研究 ;以广东、广西、浙江和福建省研究的工作较多。研究的主要方面有病原菌的鉴定和寄主范围 ,侵染和传播途径、发病条件、品种抗病性及药剂防治等。今后研究的途径 ,比较一致的看法是从抗病品种、栽培技术和消灭菌源等方面着手。应该从系统的角度考虑 ,实行综合防治 Ralstoniasola nacearum is a very harmful disease in sweet potato production in southern China and is also the target of domestic phytosanitary. There are no reports of this disease in other countries. Studies on sweet potato blast have been carried out in Guangxi, Guangdong, Jiangxi, Hunan, Zhejiang and Fujian provinces. There are more studies in Guangdong, Guangxi, Zhejiang and Fujian provinces. The main aspects of the study are the identification of pathogenic bacteria and the host range, pathways of infection and transmission, disease conditions, disease resistance and drug control. Future research approach, a more consistent view is from the resistant varieties, cultivation techniques and eliminate germs and other aspects. Should be considered from the system point of view, the implementation of integrated control