How? I have identified the roots and pull them out as much as I can, but I'm afraid when I pull them, I just break them into small pieces when make them spread more. I'm also adding a lot of topsoil to my garden with hopes of burying them further. Can I do anything else other then adding chemicals?
Certified GKH Gardening Expert
Here is an article that will help you.
The topsoil may slow them but they will continue to grow up through it.