Live Oak Galls

Asked May 16, 2018, 10:53 PM EDT

Our live oaks have these buldgy halls. We’ve already read several articles concerning this problem. However, what treatment is there? We read that we should just let it be. But there must be a treatment. Would you please help us? Thank you Nanette and Danny Roberson

Val Verde County Texas

1 Response

Thank you. Galls are usually caused be insects which irritate the wood when laying eggs. Although they are unsightly, they won't cause any serious damage unless they become bad enough to interfere with photosynthesis which is rare.

To prevent them, it would be necessary to control the adults with a contact spray before they lay eggs. Since they come and go as they please, it would be impractical to expect any real level of reduction in galls.