Botrytis cinerea

fungus

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Last updated

July 19, 2026

Quick Summary

Botrytis cinerea is a fungus that causes a plant disease known as gray mold rot. This disease affects a wide range of plants, including vegetables, fruits, and flowers, particularly in humid conditions.1

The symptoms typically appear on flowers and buds, presenting as soft, tan to brown spots that become covered in a dusty mold. This can lead to wilting and rotting of plant parts.1

Control measures include removing infected plant material, ensuring good air circulation through proper spacing, and careful watering. Storing harvested produce at low temperatures and applying fungicides during damp weather can also help manage the disease.1

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gray mold rot
… in the genus Botrytis, usually B. cinerea. Most vegetables, fruits, flowers, and woody plants are susceptible.
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… in the genus Botrytis, usually B. cinerea. Most vegetables, fruits, flowers, and woody plants are susceptible.
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Tokaji Aszú
…from late-ripened grapes affected by Botrytis cinerea, a mold that concentrates grape sugars and flavours into honeylike sweetness. The grapes are from the Hungarian Furmint or Hárslevelű vines, which are grown in the Tokaj wine region in northeastern Hungary.
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…from late-ripened grapes affected by Botrytis cinerea, a mold that concentrates grape sugars and flavours into honeylike sweetness. The grapes are from the Hungarian Furmint or Hárslevelű vines, which are grown in the Tokaj wine region in northeastern Hungary.
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