We have noticed 2 or 3 groundhog holes around our property and the previous owners complained about them eating their garden. I love to grow a garden and in preparation for the upcoming growing season I was wondering if anyone here has had any luck controlling them? I've read about moth balls, ammonia, used kitty litter, fox pee, smoke bombs, etc but from what I read, none seem to be real successful. Anyone know how to control these darn critters?