Mealybug Infestation on Hoya: Identification and Control

Cottony Masses on Hindu Rope Hoya

White, cottony deposits on a Hindu rope hoya (Hoya carnosa 'Compacta') indicate mealybugs, not spider mites. The pest spread to other hoyas in a different room.

Treatment Options

• Systemic insecticide: Spray weekly (e.g., malathion or systemic formula) so new insects are poisoned when they feed.
• Manual removal: For light infestations, dab insects with a cotton swab dipped in alcohol or wash them off.
• Severe cases: Apply a reputable brand insecticide per label instructions.

Isolate affected plants during treatment. Consistent application breaks the life cycle and saves the collection.