Help My Oak Trees

Asked March 29, 2018, 7:40 PM EDT

I have 3 very large oak trees in my back yard. One of them has developed these round balls attached to the limbs and they are all over it. The tree is losing a lot of limbs in windy conditions. It appears to be dying. Today I noticed the Oak tree adjacent to it is beginning to develop small balls just like the larger ones on the other one. I have a third Oak but it is not showing any signs yet and if the furthest from the worst one. Any input on this problem? Thanks in Advance.

Henderson County Kentucky

1 Response

Most likely, you have an oak gall of some type. Several galls are a result of a wasp and typically are not detrimental to the health of the tree.

If you want to take a sample of a gall to your extension office, they may be able to identify the type of gall and give you more information.