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Leaf Spot in Phlox Annual

How to identify and treat leaf spot in Phlox Annual.

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Phlox Annual care requirements

water
Keep soil consistently moist but not waterlogged; water at soil level to avoid leaf spotting; allow soil to dry slightly between waterings
soil
Well-draining, moderately fertile soil; loamy, slightly acidic to neutral pH (6.0–7.0)
light
Full sun (6–8 hours daily); tolerates partial shade in hot climates
symptoms

Symptoms to look for in Phlox Annual

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

Common causes in Phlox Annual

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

healing

How to treat leaf spot in Phlox Annual

Remove affected leaves. Apply appropriate fungicide or bactericide.

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Preventing leaf spot in Phlox Annual

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

Leaf Spot in Phlox Annual — Symptoms & Treatment | GreenScout