I have never tried it, but i have heard that if you bury empty beer bottles around the area you want to protect, it drives the moles out. Supposedly you bury the beer bottles so just the top is sticking out of the ground. I hear that when the wind goes over the mouth of the bottle, it produces vibrations in the bottle and ground that the moles cant stand. My neighbor has tried this cause he had mosed ripping up his yard and he says it works.