Diseases of Fruit Plantation Medicinal and Aromatic Crops

Stalkend rot of grapes

Causal Organism : Aspergillus niger van Tiegh.
Infected berries show brown rot at stalk end. The rotten begins as small, circular to oval, water- soaked spot. Which enlarges and turns brown.
White mycelial growth of the fungus develops and black conidial head of the fungus is seen. Infected tissues become soft and emit bad odour.
Diphenyl a protectant and eradicant when sprayed on cushions is effective at 1g per pack in protecting the fruits upto 15 days in storage.