Symptoms
- Spots produced are small, numerous in number with pale brown centre and reddish brown margin. Similar spots also occur on branches and pods.
- Under favourable environmental conditions, severe leaf spotting and defoliation occurs at the time of flowering and pod formation.
- The fungus is seed-borne and also survives on plant debris in the soil.
- High humidity favours disease development.
Dept of Agriculture Development 
SFAC Kerala