re: How to get rid of cactus.

We pry it up with a front end loader like other have said. It does good damage, but it will come right back. You never get all of it, and you could take one ear, throw it on its side on the ground, and it will root and start making new ears.

You can blow torch the needles and cows will eat it.

To answer your question, you can't get rid of it, but you can manage it.