I do not think finding out what they eat is the answer. Live trap can work. Put a head of lettuce in it. But now there are so many other green things out there, it may not be tempting enough. I had the same problem and they can do a lot of damage to the foundations of buildings. Caught 2 in a live trap. Shot 2 others with my .22. They do make smoke bombs you can drop down their holes. You could also find something that smells bad to drop down their holes but they will just start digging a new tunnel under a different part of your foundation I'll bet. Gene
