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Powdery Mildew in Weigela

How to identify and treat powdery mildew in Weigela.

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Weigela care requirements

water
Moderate watering; water regularly during growing season and establishment; fairly drought-tolerant once established
soil
Well-draining soil; tolerates a wide range of soil types including poor, sandy, or clay soils; pH adaptable
light
Full sun to partial shade; flowering is most profuse in full sun with at least 6 hours of direct sunlight daily
symptoms

Symptoms to look for in Weigela

  • fiber_manual_recordWhite powdery patches on leaves
  • fiber_manual_recordDistorted new growth
  • fiber_manual_recordPremature leaf drop
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Common causes in Weigela

Caused by various fungal species. Spreads in warm, dry conditions with high humidity nights.

healing

How to treat powdery mildew in Weigela

Remove affected leaves. Apply neem oil, potassium bicarbonate, or sulphur-based fungicide. Improve air circulation.

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Preventing powdery mildew in Weigela

Space plants for good airflow. Avoid overhead watering. Choose resistant varieties.