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Botrytis (Grey Mould) in Pieris

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

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Pieris care requirements

water
Keep soil consistently moist; water regularly during growing season and reduce in winter
soil
Acidic, well-draining soil rich in organic matter; pH 5.0–6.0
light
Partial shade; tolerates dappled sunlight but may bleach in full sun
symptoms

Symptoms to look for in Pieris

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

Common causes in Pieris

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

healing

How to treat botrytis (grey mould) in Pieris

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

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Preventing botrytis (grey mould) in Pieris

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

Botrytis (Grey Mould) in Pieris — Symptoms & Treatment | GreenScout