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Leaf Spot in Alyssum

How to identify and treat leaf spot in Alyssum.

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Alyssum care requirements

water
Water moderately; keep soil evenly moist but not waterlogged. Drought-tolerant once established. Reduce watering in cool months.
soil
Well-draining soil; tolerates poor to average fertility. pH 6.0–7.5. Sandy or loamy soils preferred.
light
Full sun to light shade (4–8 hours sun daily). Blooms best with ample sunlight; shade slightly reduces flowering in hot climates.
symptoms

Symptoms to look for in Alyssum

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

Common causes in Alyssum

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

healing

How to treat leaf spot in Alyssum

Remove affected leaves. Apply appropriate fungicide or bactericide.

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Preventing leaf spot in Alyssum

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