Controlling Mealybugs on Indoor Citrus Trees

Identifying the Pest

The "white fuzz" resembling tiny stationary caterpillars in leaf creases is classic mealybugs. The seller's suggestion of preventive neem oil hints at prior issues.

Effective Home Treatment

Alcohol-Soap Spray (non-toxic, inexpensive):

1. Mix: 6 parts water + 1 part 70% isopropyl rubbing alcohol + a squirt of liquid dish soap.
2. Spray thoroughly until all leaf and stem surfaces drip—especially undersides, leaf axils, and crevices.
3. Repeat in 7 days to catch newly hatched crawlers.
4. Inspect weekly; retreat if any reappear.

About Neem Oil

• Effective but has a strong odor; best used outdoors or in well-ventilated areas.
• Available online (search "neem oil concentrate") or at garden centers.
• Dilute per label; add a few drops of Pine-Sol or dish soap to emulsify and reduce smell.

Cultural Care for Citrus Indoors

• Light: Maximum direct sun (south/west window).
• Water: Allow top 2 inches to dry, then water deeply.
• Humidity: Mist daily or use a humidifier; citrus hates dry air.
• Fertilizer: Citrus-specific formula monthly in growing season.

Consistency is key. Mealybugs hide well; thorough, repeated treatment wins.