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Leaf Spot in Horse Chestnut

How to identify and treat leaf spot in Horse Chestnut.

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Horse Chestnut care requirements

water
Moderate watering; water deeply during dry spells; tolerates occasional flooding
soil
Deep, fertile, well-drained loam; tolerates clay and alkaline soils
light
Full sun to partial shade; prefers 6+ hours of sunlight
symptoms

Symptoms to look for in Horse Chestnut

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

Common causes in Horse Chestnut

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

healing

How to treat leaf spot in Horse Chestnut

Remove affected leaves. Apply appropriate fungicide or bactericide.

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Preventing leaf spot in Horse Chestnut

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