Please see the attached photos. These were found on some fairly young oaks in Annapolis. Can you identify and recommend treatment?
View full size in a new window
Anne Arundel County
This looks like a type of gall, a hedgehog gall made by a gall wasp. They are harmless to the tree. No control is necessary. Here is our website on galls http://extension.umd.edu/hgic/shade-tree-gallshttps://bugguide.net/node/view/425655Marian
Replied October 30, 2019, 12:21 PM EDT