In my experience, one season of treatment typically eradicates magnolia scale — but 2025 may be an exception. Scale is one of the largest soft-scale insects that attacks trees by sucking plant ...

Magnolia scale is one of the largest soft scales found in the U.S. and feeds on the sap of magnolias, particularly star magnolia, lily magnolia, cucumber tree magnolia, and saucer magnolia. Tuliptree ...