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Botrytis (Grey Mould) in Nicotiana

How to identify and treat botrytis (grey mould) in Nicotiana.

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Nicotiana care requirements

water
Keep soil consistently moist but not waterlogged; water at the base to avoid wetting foliage
soil
Well-draining, fertile soil rich in organic matter; pH 6.0–7.0
light
Full sun to part shade; prefers 6+ hours of direct sunlight daily for best flowering
symptoms

Symptoms to look for in Nicotiana

  • fiber_manual_recordGrey fuzzy mould on leaves, flowers, or fruit
  • fiber_manual_recordBrown rotting tissue
  • fiber_manual_recordCollapsed flowers
help

Common causes in Nicotiana

Caused by Botrytis cinerea. Thrives in cool, humid conditions with poor air circulation.

healing

How to treat botrytis (grey mould) in Nicotiana

Remove all affected tissue. Improve air flow. Apply fungicide.

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Preventing botrytis (grey mould) in Nicotiana

Good air circulation. Remove dead plant material promptly. Avoid overhead watering.