Scale and Sooty Mold on Peace Lily: Natural Treatment

Tan bumps on peace lily leaves and stems that scrape off with a fingernail are likely scale insects. The fine black dust is sooty mold growing on their honeydew.

Natural Control

• Physical removal: Scrape off scales with a fingernail or soft brush; prune heavily infested leaves.
• Insecticidal soap: Safer Brand or similar—test on two leaves first. Repeat weekly for 3–4 weeks.
• Neem oil: Organic, effective on scale; follow label.
• Wipe sooty mold off leaves with a damp cloth; it will not return once scales are controlled.

If unsure, email a sharp close-up photo for confirmation. Avoid synthetic pesticides indoors.