Ha, they're great for weed control. It's keeping them out of the garden that's the challenge.
We have a little "dummy" garden set outside and away from the real garden that they ravage. Between the "weeds" and the false garden, they no reason to burrow into the actual garden space.
Impossible to keep them away, otherwise, as we're adjacent to the town rec fields where they run rampent. Can't shoot em and don't have the time to put chickenwire under the garden fence.