Spider mites
Tiny pale dots, a dusty stippled look, and faint webbing on a polka dot plant point to spider mites.
Diagnosis
Spider mites
What's happening
Spider mites love the warm, dry conditions that polka dot plants hate, and the thin leaves are a favorite target. These near-invisible pests pierce the leaf cells and suck the sap, leaving fine pale or yellow stippling that can be mistaken for fading color. As an infestation grows you'll see delicate webbing in the leaf joints and on the undersides, and the leaves dull, curl, and drop.
How to fix it
Isolate the plant immediately so the mites don't spread. Rinse it thoroughly in the shower or sink, paying special attention to the leaf undersides where mites and eggs hide, then treat every surface with neem oil, repeating every 5–7 days for a few weeks to catch newly hatched mites. Raising the humidity around the plant going forward makes it far less hospitable to mites and happier overall. Check nearby plants too, since mites travel.
What fixes it
- Neem oil for pests — Neem oil smothers spider mites and their eggs; reapply every 5–7 days until the stippling and webbing are gone.
If that doesn't fix it
This is general guidance based on common symptoms; individual plants vary.
Read the full Polka Dot Plant care guide →
Reviewed June 2026 · how we check this