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Powdery Mildew in Petunia

How to identify and treat powdery mildew in Petunia.

potted_plant

Petunia care requirements

water
Regularly — containers need daily watering in heat.
soil
Well-draining, fertile potting mix.
light
Full sun — minimum 6 hours.
symptoms

Symptoms to look for in Petunia

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

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

healing

How to treat powdery mildew in Petunia

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

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Preventing powdery mildew in Petunia

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