I recently had a 40 ft blue spruce tree removed from my front yard. I dug a hole in that area to put a new tree but noticed there is a solid metal wire inside of this hole.
Maybe this wire was the wrap around the bottom of the old blue spruce? In either case I tried using cutters, knife, shovel anything and these things do not cut. Is there a strong tool to cut these metal wires out?
Here is a picture of them, they went from gray / silver in color to almost brown probably because they are now exposed: