Black Leaves on Ivy: Fungal Disease or Watering Issue?

Possible Causes

Fungal: Powdery mildew (white powder) or botrytis (gray fuzz). Treat with Lysol spray every other day for 3 weeks.
Watering: Overwatering causes blackening, especially in low light.

Send photos for accurate ID. Include light conditions and watering routine. Ensure pots have drainage and soil dries between waterings.

House Plants: Brazilian Red Cloak Leaf Damage: Environmental Stress, Not Disease; Drosera capensis Black Leaf Tips: Aging, Transition, or Root Damage?; Why Your Jade Plant and Swedish Ivy Have Tiny New Leaves; Diagnosing and Treating Root Rot in Ivy; Identifying a Leafless Mystery Plant: Why Foliage Is Essential for Diagnosis; Black Spots on Philodendron Xanadu: Harmless or Scale Insects?; Ivy Sunburn and Dehydration: Move It to Shade Now; Hanging Ivy Care: Water More, Pinch for Bushiness; Ivy Plant Sudden Black Leaves: Cold Damage or Root Rot?; Peace Lily Black Leaves: Diagnosing Root Rot vs. Sooty Mold

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