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Horticultural crops :: Fruits:: Apple

Bitter rot: Glomerella cingulata

Symptom

  • Faint, light brown discolouration beneath the skin develops. The discolouration expands in a cone shape. The circular, rough lesions become depressed. The lesions increased and covers  entire areas of fruits.
  • Diny black dots appear beneath the cuticle which gives rise to acervuli
  • Pink masses of spores are found arranged in defined rings.

Management

  • Spray Mancozeb 0.25 % in field.
  • Treatment with Mancozeb 0.25 % to check the disease in storage.

 

Small bitter rot lesions, a few acervuli on surface of largest lesion.

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