Narrow leaf : Bean yellow mosaic virus

General Information : caused by Bean Yellow Mosaic Virus (BYMV). Transmitted by sap and aphid spp, Myzus persicae and Aphis craccivora in non persistent manner. Symptoms : Yellowing and drying of the plants with feathery and deformed leaves are common. The leaves below the proliferated branches turn yellow, show interveinal chlorosis, or mosaic depending on the genotype tested. o The overall height of the plant is reduced. Affected plants produce very few, distorted flowers that develop into very small pods. The seeds from infected plants are black, small, and shrivelled. Feathery and deformed leaves

Control : The disease is considered to be a minor one.