Black Spots on Peace Lily: Likely Scale Insects

Black spots on lower leaves of new peace lilies that turn yellow are likely scale insects. Test by flicking with alcohol-dipped Q-tip—if they come off, it's scale.

Treatment

1. Spray neem oil (Lowe's carries) or rubbing alcohol on all leaf surfaces.
2. Repeat every other day for 2 weeks.
3. Isolate from other peace lilies immediately.
4. Monitor all plants for recurrence.

Alternative: Fungal Issue

If not scale, could be fungal. Provide details (indoor/outdoor, pets/kids) for fungicide recommendation.

Persistence is key—one spray won't work.