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Postharvest Diseases :: Fruits :: Grapes
Botrytis Bunch Rot or Gray Mold of Grape: Botrytis cinerea

Symptoms

  • Infected berries first appear soft and watery.
  • Infected berries of white cultivars become brown and shriveled,
  • Purple cultivars develop a reddish color
  • Healthy berries touching infected berries will become infected.
  • Rotted berries generally shrivel and drop to the ground as hard mummies

Management:

  • Preharvest infection can be controlled by three application of captan 0.2 % at monthly intervals before rainfall.
Botrytis Bunch Rot

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