Diseases of Fruit Plantation Medicinal and Aromatic Crops

Blue mould rot of grapes

Causal Organism Penicillium digitatum Sacc.
The disease infects fruits before or after the harvest.
It is characterized by scanty growth of the pathogen that turns bluish-green later.
The pathogen enters through wounds or cracks in the skin. In storage and transit, the fungus decays the berries.
The infected tissues become soft and watery. They develop a mouldy flavour also.
In Vinifera grapes, fumigation with sulphur dioxide disease reduces the rot in storage.