The problem with catching woodchucksthis time of year is that there is so much food out in the world for them that it is hard to tempt them into that trap. If it has been eating something in your garden then that would be the first to try as bait. They tend to prefer food that can be found close to the ground since that is where they forage. Tomatoes and various melons will tempt them and I’ve heard that they have a preference for broccoli. Make sure that the bait is kept fresh so you might want to try different vegetables or even flowers every day. If all else fails the I’d also try peanut butter. Keep at it and you’ll find something that will tempt it into your trap.