High Severity 21 day treatment

Mealybugs on Houseplants

Pseudococcidae

Mealybugs look like white cottony clumps and cause sticky residue. Learn how to remove them and stop reinfestation.

Signs to Look For

  • White cotton clumps
  • Sticky residue
  • Yellowing leaves
  • Slow decline

Quick Fix

  1. 1 Isolate the plant
  2. 2 Remove visible bugs with a cotton swab and alcohol
  3. 3 Wipe leaf joints and stems
  4. 4 Check nearby plants

Commonly Affects

Hoyas Succulents Pothos Jade plant Orchids Ferns

How to spot mealybugs fast

Mealybugs look like tiny white cotton balls. They hide in:

  • Leaf joints
  • Stem creases
  • Undersides of leaves
  • Near the soil line

Big clue: sticky residue on leaves or surfaces below the plant.

Treatment plan

Step 1: Manual removal (works surprisingly well)

  • Dip a cotton swab in 70% isopropyl alcohol.
  • Dab each mealybug directly.
  • Wipe away the residue.

Step 2: Repeat checks

Mealybugs come back if you miss hidden areas.

  • Re-check every 2 to 3 days for two weeks.
  • Treat any new spots immediately.

Step 3: Heavy infestations

If it is everywhere:

  • Prune what you can
  • Use insecticidal soap on the entire plant
  • Consider repotting if root mealybugs are suspected

Root mealybugs (the hidden problem)

If the plant keeps declining with no visible bugs, check roots for:

  • White fuzz
  • Waxy residue

This usually needs repotting and cleaning the roots.

Prevention

  • Quarantine new plants
  • Inspect stems and joints weekly
  • Avoid overcrowding plants

Frequently Asked Questions

Can I just rinse mealybugs off?

Rinsing helps but usually does not remove the waxy coating. Alcohol swabbing is more reliable.

Do mealybugs spread to other plants?

Yes. They can crawl between nearby plants, especially when leaves touch.

Why does my plant feel sticky?

Mealybugs produce honeydew, which leaves sticky residue that can also attract mold.

Diagnose Plant Problems Instantly

Not sure what's affecting your plant? Download BotanAI to diagnose diseases and pests with AI - works offline, completely private.

Download BotanAI Free