Mosaic disease
Common Name
Scientific Name
Bean yellow mosaic virus
Issue
Pathogenic virus
Causes
Seed borne. Aphids are also responsible for spreading the mosaic virus
Prevention
Use of certified and disease free seeds. Planting of resistant varieties (Paulista). Control of attack of aphids. Removing of infected plants from the fields. Rotation of bean crop every year.
Control
Check underside of the leaves for aphids and if found treat immediately with an insecticidal soap or neem oil.