Just pull the stalks out by hand, or cut it. Either way, most likely you are not totally removing it, but it will take time for it come back. As mentioned, try to sell what you take out, there are buyers out there. A lot of people can't seem to keep it, but others of us can't seem to stop it. If you are going to frag it to sell, just move a frag rock up beside of a stalk and it should move over to it within a few days.