Abstract Cassava (Manihot esculenta Crantz.) is the most important vegetatively propagated
food staple in Africa and a prominent industrial crop in Latin America and Asia. Its vegetative
propagation through stem cuttings has many advantages, but deleteriously it means that
pathogens are passed from one generation to the next and can easily accumulate,
threatening cassava production. Cassava-growing continents are characterized by specific
suites of viruses that affect cassava and pose particular threats. Of major concern, causing …