get rid of galls

Question

My oak tree has what my mom calls galls on the branches. They are big knots that grow on them.

Answer 1

Here is an article that will help you with this: https://www.gardeningknowhow.com/ornamental/trees/oak/oak-apple-gall-info.htm

Believe it or not we found that hanging a bird feeder in the tree did help stop the problem, along with hanging a wasp trap in the tree in another location as well.