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Botrytis (Grey Mould) in Begonia Tuberous

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

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Begonia Tuberous care requirements

water
Keep soil evenly moist during growing season; reduce watering after flowering and allow tubers to dry for winter dormancy
soil
Loose, well-draining soil rich in peat moss or compost; pH 6.0–6.5
light
Bright, filtered light or dappled shade; protect from harsh midday sun
symptoms

Symptoms to look for in Begonia Tuberous

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

Common causes in Begonia Tuberous

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

healing

How to treat botrytis (grey mould) in Begonia Tuberous

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

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Preventing botrytis (grey mould) in Begonia Tuberous

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