Scale on Seed-Grown Banyan: Treatment Without Root Disturbance

Scale Treatment Protocol

Your 7-year seed-grown Banyan (Ficus benghalensis) has scale on leaf undersides. The infestation is unrelated to soil—scale lives on stems/leaves, not in soil.

Effective Treatment

1. Mix: 5 parts water + 1 part rubbing alcohol + squirt dish soap
2. Spray outdoors on cloudy day until ALL surfaces dripping
3. Wipe visible scale after spraying
4. Return indoors when dry
5. One thorough treatment usually suffices

Soil Decision: Leave It Alone

• Recycled soil ≠ scale source
• Repotting destroys root hairs (90% of function)
• If nutrients needed: Half-strength fertilizer monthly
• Root ball history (multiple regenerations) = fragile

Monitoring

Check new growth and leaf-stem junctions weekly. Spot-spray any recurrence immediately. Your tree's fascinating root structure and history are worth preserving with minimal intervention.