Identifying and Treating Sticky Honeydew on Indoor Lemon Trees

The Sticky Substance

Sticky beads on leaves and floor = honeydew, excreted by sap-sucking pests: mites, aphids, or scale.

Treatment

1. Move tree outside (if weather permits).
2. Spray thoroughly with insecticidal soap or horticultural oil (follow label).
3. Let sit 24 hours.
4. Hose off residue and dead insects.
5. Repeat in 7–10 days if needed.

Inspect undersides of leaves and stems. Early treatment prevents sooty mold and plant decline.