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Aspergillus

Aspergillus is a genus of over two hundred species of fungi found throughout the world. This threadlike fungus can be found, for example, on corn and in hay.

recognize specific mold on fruits
Black mold (Aspergillus niger) on onion, photo: S.K. Mohan - CC BY 3.0

Aspergillus is a genus of over two hundred species of fungi found throughout the world. This threadlike fungus can be found, for example, on corn and in hay.
Aspergillus thrives in an oxygen-rich environment (aerobic). These molds grow on the surface of plants and fruits.
Aspergillus niger is responsible for black mold on fruits and vegetables (onions, walnuts, grapes).

Affected plants

  • Fruits and vegetables

Control

Infestation to fruits is irreversible.

Prevention

Store fruits in a dry environment.

For example: pick up fallen walnuts as soon as possible. The longer they lie in damp grass, the greater the chance of mold forming. Remove the husks and put them to dry.