Planting material should be free from insect pests such as cassava mealy bug and cassava scales; and diseases such as the cassava mosaic disease (CMD), cassava brown streak disease (CBSD) and cassava bacterial blight (CBB)
Nthambi zobzala zikhale zopanda tizilombo towononga mbewu monga Cassava mealy bug ndi cassava scales; ndipo zopanda matenda monga cassava mosaic disease, cassava brown streak disease ndi cassava bacterial blight