Informal seed trade can exacerbate crop disease epidemics. Potato production across Ethiopia is threatened by the spread of seedborne pests and pathogens, particularly by bacterial wilt, caused by the Ralstonia solanacearum species complex (RSSC). The RSSC is commonly dispersed through informal trade of seed potato, with the potential to move long distances across Ethiopia and among trading countries. Efficient disease testing programs and formal seed systems can reduce the risk of disease expansion in national potato cropping systems.

中文翻译：

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翻译埃塞俄比亚马铃薯种子网络：确定管理细菌性枯萎病和其他疾病的战略干预点


非正式的种子贸易会加剧作物病害的流行。埃塞俄比亚的马铃薯生产受到种子传播的有害生物和病原体的威胁，特别是由青枯病菌物种复合体 （RSSC） 引起的细菌性枯萎病。RSSC 通常通过种薯的非正式贸易进行传播，有可能在埃塞俄比亚和贸易国之间长距离移动。有效的病害检测计划和正式的种子系统可以降低国家马铃薯种植系统中病害扩大的风险。