Lo Gro Sumac

Asked August 31, 2019, 4:07 PM EDT

We have several newly planted (July) Lo Gro Sumac plants. They are all growing and look healthy, but all have these growths on the leaves.
Can you identify what they are? What is the cause?

Denver County Colorado

1 Response

These are galls which is abnormal tissue growth caused by a variety of issues. Attached is a document on these galls.