Myrtle Topiary White Fungus: Likely Mealybugs

"White fungus" on interior stems is usually mealybugs (cottony) or spider mites (webbing). Stressed indoor myrtles attract pests.

Treatment

1. Spray thoroughly: 5 water + 1 rubbing alcohol + squirt soap. Drench all surfaces.
2. One thorough treatment usually works if no survivors.

Winter Care

• Max direct sun.
• Water by need (deeper dry-down than summer).
• No calendar watering.

Mealybugs die on contact with alcohol spray. Thoroughness is key.