The local groundhog found my garden, which has a 4 foot fence of chicken wire on two sides (staked down with sod staples) and an old wooden fence and brick house on the others. The wooden fence apparently doubles as a gate for groundhogs. I've tried my solution for deer, rabbits and chipmunks but it doesn't phase the Hog, which has been in Hog Heaven for the last two days.
Plugging the hole simply makes another hole.
I have thought of an open ended live trap to get him but I'm not going to spend the money on a trap not when there are much cheaper ways although not as humane.