Root Gall?

I was working by my Pluerry tonight and noticed this little gem sticking about 1/4" out of the ground. Dug around it and it appears to be a huge gall. My trees in the vicinity are all about 3’ apart, so I’m sure they all have it by now. Am I in bad shape? What should I do???

Shoe provided for scale…

If it’s crown gall there’s nothing you can do. I’m living with it OK so far.

I have it too, except mine is more flat and spreading, like a mushroom. I have it mainly in my melon patch, and I’m adding extra lime this year, in order to see, if that will help keep it under control. I once thought that it might be caused by decaying deep roots, that were once where my melon patch is, but it’s only a