Woodchucks (also known as groundhogs) work fast. One day the garden will be fine, and the next it will be completely devastated, albeit ever so neatly. Usually the woodchuck is a more methodical eater, then deer are. While deer browse, eating a little here and a little there, the woodchuck will systematically work entire row of carrot tops. Or he might take just one bite out of each ripening tomato as he works down a row. The sides of a row of Brussels sprouts looks like a tree trimming outfit just left your garden. You may find yourself with a broken leg if you step into an unseen entry hole. If you feel like sitting down and crying, you have woodchucks!