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Post Harvest Diseases :: Fruits :: Apple
Grey mould: Botrytis cinerea
Symptoms:
  • Infected fruits turn slightly brownish.
  • The fungus advances into the inner flesh resulting in a soft, watery mass of decayed tissue contained in a slightly intact, brown skin.
  • The pathogen sporulates on the surface of fruit and the typical, powdery, grey mould stage.
  • The disease can spread by contact.
Brown spot Watery mass Grey mould

Management:

  • Sodium bisulphate which releases SO2 when in contact with moist air can be used with packing material.Dibromotetrachloroethane, sodium-o-phenyl phenate, 2-acetyl-3-hydroxyfuran (Eckert and Sommer, 1967).
  • Grey mould can be controlled by prompt cooling.

Image source: www.plantmanagementnetwork.org/pub/php/diagnosticguide/2008/apple/


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