Symptoms:

• Spot occur on juvenile as well as on mature leaves.
• These spots spread and coalesce to form large, dark brown to purple,linear to irregular areas, which often cover the entire leaf lamina.
• As the disease progresses, irregular spots develop on the leaves and the spots turn grey in the centre with a brown margin.
• Infected foliage becomes pale yellowish green and leathery and shows symptoms of chlorosis, which later turns necrotic during advanced stages.
• Severe infection results in premature defoliation.

Size:

Water-soaked, small, greyish brown spots.

Occurrence:

Maximum infection occur during October to January.