Plant guide:ðŸĨ Kiwi
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Fungal

Botrytis Grey Mould on Kiwi Fruit

Commonly affects: Actinidia deliciosa, A. chinensis (Kiwi)

A fuzzy grey mould develops on fruit, often starting at the stem end, spreading rapidly especially on fruit in storage or during cool, humid weather near harvest.

Potential Causes

  1. 1Botrytis cinerea fungus, favoured by cool, humid conditions
  2. 2Fruit damaged during harvest providing an entry point
  3. 3Poor air circulation in storage after picking

Solution Steps

  1. 1Harvest fruit carefully to avoid bruising or stem damage that gives Botrytis an entry point
  2. 2Store harvested fruit in cool, well-ventilated conditions
  3. 3Remove and destroy any fruit showing early signs of grey mould before it spreads to others in storage
  4. 4Improve airflow around vines during the final weeks before harvest

Prevention Tip

Careful, damage-free harvesting is the single biggest factor in preventing Botrytis rot during storage, since wounds are the fungus's main entry point.