LetBug LetBug
Published on February 14, 2026

Mealybugs: Removal, Isolation, and Prevention

See white cottony fluff on your plant? Those are mealybugs.

Key Takeaways

  • Check soil moisture before watering.
  • Look for signs of stress early.
  • Consistency is key for recovery.

Mealybugs look like tiny bits of white cotton or mold. They hide in the nooks and crannies where leaves meet the stem.

The Weapon: Isopropyl Alcohol (70%)

Mealybugs have a waxy coating that repels water sprays. Alcohol dissolves this wax and kills them on contact.

Treatment Steps

1. The Q-Tip Hunt

Dip a cotton swab (Q-tip) in rubbing alcohol. Touch it directly to the white fluff. It will turn orange/brown and die instantly. This is satisfying but tedious.

2. The Spray

For larger infestations, mix a spray:

  • 1 cup water
  • 1/2 cup Isopropyl alcohol
  • 1 tsp Dish soap Spray the entire plant, getting into every crevice.

3. Repeat

Mealybug babies (crawlers) are tiny. Repeat treatment every 5-7 days for a month.

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