Mealybugs on Hoya (Hindu Rope): Alcohol Spray Treatment

Identifying Mealybugs

White, cottony, powdery deposits on Hoya carnosa that crumble when rubbed are mealybugs. They hide in leaf axils and stem joints.

Effective Treatment

1. Mix 1 part rubbing alcohol + 5 parts water + squirt of liquid soap.
2. Spray thoroughly to drip point on all surfaces—top/bottom leaves, stems, crevices.
3. Repeat in 5–7 days to catch hatchlings.
4. Inspect weekly thereafter.

Critical Tips

• Q-tip dabbing misses hidden bugs—spray coverage is essential.
• Test on a few leaves first; wait 2 days for reaction.
• Never spray in direct sun or above 75°F.
• Avoid pesticides; they're hazardous and no more effective.