Use dog poop! Use dog poop! Place some of his own poop in the hole. Blow up balloons, put them in the holes then cover them back up with dirt. When the dog digs one up, POP! Sprinkle Cayenne pepper or chili powder in the spots where your dogs likes to dig.
Pepper as Repellent. Although not guaranteed to work for all dogs, sprinkling cayenne pepper or ground black pepper on your lawn might make your furry pal think twice about digging in it. When your dog's excellent sense of smell catches a whiff of the hot stuff, he'll quickly avoid the area.
Cayenne pepper works well to keep your dog from digging or chewing plants. The dried version of the spicy pepper can be sprinkled in your garden and will not .
I am not advocating animal cruelty but I was told that Cayenne Pepper will keep dogs from digging in my flower beds and I have sprinkled it in my flower garden .