88% confidence Based on 20,000+ analyzed cases

Black Spots on pothos

pothos with black spots

What's Happening

Black spot disease on pothos caused by fungal pathogens (Phyllosticta, Cercospora, or Alternaria species) that spread via water splash from infected plants to healthy tissue. Infected mother plants transmit pathogens to all cuttings; misting creates water droplets that facilitate spore dispersal and germination in stagnant humid microenvironments with poor air circulation.

How to Fix It

  1. 1

    Sterilize scissors with 70% isopropyl alcohol before and after EACH cut to prevent cross-contamination between plants

  2. 2

    Remove ALL affected leaves immediately, cutting petioles at the base; dispose in sealed plastic bag away from other plants

  3. 3

    STOP all misting immediately; pothos prefer 40-60% ambient humidity without direct leaf wetting

  4. 4

    Increase air circulation with fan on low speed positioned 3-4 feet from plants to dry foliage and disrupt humid pockets

  5. 5

    Monitor daily for 14 days; apply neem oil spray (1 tsp per quart water with 2 drops dish soap) if new spots appear

How to Prevent It

Never mist pothos foliage; use pebble trays or humidifiers for humidity instead. Maintain minimum 12-18 inches spacing between plants to prevent leaf-to-leaf contact. Ensure 6-8 hours of bright indirect light and active air circulation. Inspect and treat mother plants before taking cuttings; propagate only from visibly healthy tissue.

Related Problems

View all pothos diagnoses →

Go Deeper

This is covered in-depth in the pothos Mastery Pack — structured modules with video walkthroughs, advanced protocols, and rescue timelines.

Get the Mastery Pack — $37 →

Frequently Asked Questions

What causes black spots on my plant?
Black spot disease on pothos caused by fungal pathogens (Phyllosticta, Cercospora, or Alternaria species) that spread via water splash from infected plants to healthy tissue. Infected mother plants tr...
How do I fix black spots?
Sterilize scissors with 70% isopropyl alcohol before and after EACH cut to prevent cross-contamination between plants. Remove ALL affected leaves immediately, cutting petioles at the base; dispose in sealed plastic bag away from other plants.
How do I prevent black spots from happening again?
Never mist pothos foliage; use pebble trays or humidifiers for humidity instead. Maintain minimum 12-18 inches spacing between plants to prevent leaf-to-leaf contact. Ensure 6-8 hours of bright indire...