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Fungal Infection on philodendron

philodendron with fungal infection

What's Happening

Fungal infections (Pythium, Phytophthora, Botrytis) thrive in wet, humid conditions with poor airflow. Appear as fuzzy growth, spots, or rot on leaves and stems. Common after overwatering, misting, or high humidity without ventilation.

How to Fix It

  1. 1

    Isolate affected plant immediately

  2. 2

    Remove infected leaves/stems with sterile scissors

  3. 3

    Apply copper-based fungicide or neem oil treatment

  4. 4

    Improve air circulation with fan to reduce humidity around leaves

  5. 5

    Allow soil to dry between waterings

  6. 6

    For severe cases: repot in fresh sterile mix after treating roots

How to Prevent It

Water at soil level avoiding foliage; maintain 40-60% humidity with good airflow; avoid overcrowding plants; quarantine new plants; ensure pots have drainage; allow soil to dry appropriately

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Frequently Asked Questions

What causes fungal infection on my plant?
Fungal infections (Pythium, Phytophthora, Botrytis) thrive in wet, humid conditions with poor airflow. Appear as fuzzy growth, spots, or rot on leaves and stems. Common after overwatering, misting, or...
How do I fix fungal infection?
Isolate affected plant immediately. Remove infected leaves/stems with sterile scissors.
How do I prevent fungal infection from happening again?
Water at soil level avoiding foliage; maintain 40-60% humidity with good airflow; avoid overcrowding plants; quarantine new plants; ensure pots have drainage; allow soil to dry appropriately