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 tree health henderson county kentucky horticulture

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.