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Leaf Spot in Larkspur

How to identify and treat leaf spot in Larkspur.

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Larkspur care requirements

water
Keep soil evenly moist during growing season; reduce water once established
soil
Well-draining, moderately fertile soil with pH 6.0–7.0
light
Full sun to light shade; prefers 6+ hours of sunlight daily
symptoms

Symptoms to look for in Larkspur

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

Common causes in Larkspur

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

healing

How to treat leaf spot in Larkspur

Remove affected leaves. Apply appropriate fungicide or bactericide.

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Preventing leaf spot in Larkspur

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