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Leaf Spot in Snapdragon

How to identify and treat leaf spot in Snapdragon.

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Snapdragon care requirements

water
Keep soil consistently moist but not waterlogged; water at the base to prevent fungal issues
soil
Well-draining, fertile soil with pH 6.0–7.5; amend with compost before planting
light
Full sun to partial shade; 6+ hours of direct sunlight daily for best blooming
symptoms

Symptoms to look for in Snapdragon

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

Common causes in Snapdragon

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

healing

How to treat leaf spot in Snapdragon

Remove affected leaves. Apply appropriate fungicide or bactericide.

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Preventing leaf spot in Snapdragon

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