Mealybug Infestation: White Sticky Powder on Leaves

The white, sticky, cottony residue is almost certainly mealybugs. They hide in leaf axils and stem joints; wiping misses the tiny crawlers.

Effective Non-Toxic Treatment

1. Rubbing alcohol spray: 1 part alcohol + 5 parts water + drop of liquid soap. Spray all leaf and stem surfaces to dripping. Repeat in 5–7 days.
2. Brand X Foliage Cleaner (silicon-based, penetrates crevices): Available from Southwest Plantscape Products (800-333-7977).
3. Horticultural oil (Sun Spray Ultra Fine) or neem oil (dilute with water + Pine-Sol for odor).
4. Hot Pepper Wax (cayenne-based): hotpepperwax.com.

Critical: Spray in shade, below 75°F; test on a few leaves first. Check weekly for recurrence.