木薯褐条病(CBSD)是由木薯褐条病毒(CBSV,Potyviridae科Ipomovirus属)引起的。这种病毒可导致木薯块根减产和品质下降。在叶片上,这种病害表现出在较小叶脉两旁羽状缺绿的症状,并根据作物品种、作物龄期和气候条件发生变化。叶片CBSD典型症状一般仅出现在成熟叶片上,伸展中的嫩 The cassava brown disease (CBSD) is caused by the cassava brown virus (CBSV, Potyviridae genus Ipomovirus). This virus can cause cassava root yield and quality decline. On leaves, the disease shows featheriness and greening on both sides of smaller veins and varies according to crop variety, crop age and climatic conditions. The typical symptoms of leaf CBSD generally appear only on mature leaves, stretching tender