First, confirm it’s spider mites
| Sign | What it looks like |
|---|---|
| Stippling | Hundreds of tiny pale yellow or white dots where mites pierced leaf cells — a faded, dusty, "sandblasted" look |
| Webbing | Fine silk between leaves, along stems and on leaf undersides — heavy infestations only |
| The mites | Specks under 0.5 mm on leaf undersides; tap a leaf over white paper and watch the dust walk |
| Conditions | Hot, dry air — winter heating season and summer heatwaves are peak mite weather |
| Progression | Leaves yellow, bronze, curl and drop; new growth stunted |
Stippling without webbing could also be thrips (silvery streaks instead of dots). If leaves are yellowing in patches rather than pinpricks, run through the yellow-leaf causes first.
Step 1: Quarantine immediately
Spider mites travel on drafts, hands, and touching leaves. Move the infested plant to another room, away from any airflow toward your other plants, and inspect every plant that stood nearby — the paper-tap test takes ten seconds per plant.
Step 2: Physically knock the population down
Take the plant to the shower or sink and blast every surface with room-temperature water, especially leaf undersides. This alone removes the majority of mites and webbing. Wipe large leaves with a damp cloth. Trim off any leaf that’s more stippling than green — it won’t recover and it’s a mite nursery.
Step 3: Spray — and coat everything
Once the foliage has dried, spray until dripping with one of these. Contact killers only work on mites they touch, so coverage matters more than product choice:
- Insecticidal soap — fast, cheap, safe indoors. Kills on contact by dissolving the mite’s outer layer.
- Neem oil (or horticultural oil) — smothers mites and has some residual effect. Spray in the evening, out of direct sun, to avoid leaf burn.
- Predatory mites (Phytoseiulus persimilis) — biological control that hunts spider mites down; excellent for large collections, but don’t combine with sprays that would kill the predators too.
Step 4: Repeat every 5–7 days — this is the whole game
Spider mite eggs are immune to soap and oil, and they hatch in 3–5 days in warm rooms. One spray kills the adults; the next generation hatches and rebuilds within a week. Treat, wait 5–7 days, treat again — at least three rounds, and keep going until you find no mites on a paper-tap test two weeks running. Keep the plant quarantined the whole time.
Caught it early? Confirm it with a scan
Early spider mite stippling is easy to mistake for nutrient problems or thrips. Photograph the leaf in FloraCure and the AI confirms the pest with a confidence score, rates how far the infestation has progressed, and lays out the treatment cycle with recommended products and active ingredients. Set reminders for each repeat spray so the 5–7 day rhythm never slips.
Coming soon to Google Play →Prevent spider mites coming back
- Raise humidity — mites thrive in dry air and hate moisture. 50%+ humidity slows them dramatically.
- Shower or wipe dusty foliage monthly; clean leaves are hostile territory.
- Quarantine every new plant for two weeks and paper-tap test before it joins the shelf.
- Inspect leaf undersides whenever you water — a colony caught at 20 mites is an afternoon’s work, not a month’s.
- Keep plants unstressed: drought-stressed plants are mites' favorite targets, so stay consistent with watering.
