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Disease Details

Anthracnose (Colletotrichum gleosporides)


  • 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.


Water-soaked, small, greyish brown spots.


Maximum infection occur during October to January.

Anthracnose leaf spot of ramie

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