Posted By:
David Atkatz"By the way David, not to be argumentative, but moles don't eat roots, they are insectivores. they eat the grubs that eat the roots. You're thinking of voles or gophers."
I grew up in the Bronx, so you should be amazed that I at least know that a mole is a tunneling mammal. 
I learned about grubs about ten years ago, when I walked across my lawn and the grass just came away under my feet.
So if moles eat grubs, they're good, no?