Rescue playbook
How to get rid of mealybugs on houseplants
White cottony fluff in the leaf joints? Isolate, swab, and stay consistent — mealybugs hide.
White cottony clusters in leaf joints are classic mealybugs. Isolate and spot-treat; they hide in crevices.
What to look for
- White, cottony or waxy fluff in leaf axils and stem joints
- Sticky honeydew or sooty mold on leaves
- Yellowing, distorted new growth
- Bugs that smear when dabbed with alcohol on a cotton swab
Day-by-day plan
Day 0
Isolate and wipe visible bugs
Move the plant away from others. Dab each visible mealybug with 70% isopropyl on a cotton swab, then wipe honeydew.
Safety: Spot-test alcohol on a leaf first. Keep alcohol off open wounds and away from flames.
Day 0
Soap or neem follow-up
After manual removal, spray insecticidal soap or neem oil solution into crevices and undersides where crawlers hide.
Day 7
Second pass for crawlers
Repeat swabbing and spray — eggs and tiny crawlers often appear a week later. Check pot rims and nearby plants.
Day 14
Confirm clear of fluff
If new cottony spots appear, continue weekly treatment for another 2–3 weeks until none return.
Safety
Mealybugs spread easily via tools and touching leaves — wash hands and quarantine until clear. Follow product labels indoors.
See a nursery if…
Infestation covers stems heavily, plant is collapsing, or bugs return after a month of consistent treatment.
Houseplant-only note
This guide is for household houseplants — not human or animal medical advice, and not a substitute for a nursery or plant pathologist when a plant is seriously declining. Full disclaimer.
Need reminders while you treat?
Rootline can keep a treatment plan and care schedule on your phone — free crisis playbooks included. Soft launch on iPhone.