Lilac Ring Mottle

Lilac leaves show ring spots, mottle, and deformation, with variable symptoms by season. This viral disease is mechanically transmissible on tools and in the nursery. Remove infected plants, sanitize pruning tools between plants, and practice sanitation when taking cuttings. Symptom expression can be erratic.

Infected plants should be removed and destroyed. Sanitize pruning and other tools between plants or blocks of plants.