I've managed to get the woodchuck. He won't be menacing my garden anymore.
So far, I lost broccoli, peas, celery, zucchini, one branch of cuccuzi squash, brussels sprouts and all my peaches. At least with the peaches they didn't eat the tree.
I made the fence higher, added a low electric fence.
Yesterday I put chicken wire over the entrance they had dug under the shed. That delayed the woodchuck enough that I could get 'em.
The witch is dead, the witch is dead!
I'm hoping there isn't another
