Researchers from Alliance Bioversity International - CIAT have identified a fungus, Ceratobasidium, as the cause of cassava witches' broom disease in Southeast Asia using DNA sequencing technology. Published in Scientific Reports, the findings will help plant pathologists in Laos, Cambodia, Vietnam, and Thailand protect the cassava crop, a crucial source of income for small farmers in the region. The research utilized the DNA/RNA sequencing technology of Oxford Nanopore Technologies.