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Leaf Spot in Osmanthus

How to identify and treat leaf spot in Osmanthus.

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Osmanthus care requirements

water
Moderate watering; keep soil consistently moist but not waterlogged. Reduce watering in winter when growth slows.
soil
Well-draining, fertile soil; tolerates slightly acidic to neutral pH. Amend with organic matter at planting.
light
Full sun to partial shade; prefers at least 4 hours of sunlight daily for best flowering.
symptoms

Symptoms to look for in Osmanthus

  • fiber_manual_recordCircular brown or black spots
  • fiber_manual_recordYellow halos around spots
  • fiber_manual_recordPremature defoliation
help

Common causes in Osmanthus

Multiple fungal and bacterial pathogens. Favoured by wet foliage and warm temperatures.

healing

How to treat leaf spot in Osmanthus

Remove affected leaves. Apply appropriate fungicide or bactericide.

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Preventing leaf spot in Osmanthus

Water at soil level. Improve air circulation. Practise crop rotation.