Knowledgebase
Details about oak Infestation #872385
Asked June 10, 2024, 11:09 AM EDT
Union County Ohio
Expert Response
Hello Becky,
Your gall infestation is caused by an oak gall wasp. Have you seen any small wasps in your area? There is little you can do except do a good fall leaf removal and destruction of the infected leaves. Pruning of the twigs that have this infection will help. A local arborist can tell you if it possible to treat your tree. This problem is one that will no harm the tree but as you said it is unsightly.
Resources:
http://www.mmsend49.com/link.cfm?r=<personal data hidden>&sid=76094969&m=10266307&u=PURDUE2&j=28022341&s=http://extension.entm.purdue.edu/publications/E-56.pdf
https://extension.umd.edu/resource/mulching-trees-and-shrubs/
Horned & Gouty Oak Galls Identification, Symptoms & Management | Davey Tree
Becky,
It is 50/50 chance.