Fly Trap Bait (3 Month Supply)Any substantially stinky bait will work in our fly traps but this bait has proven to be highly effective. Our bait is comprised of Ammonium Carbonate and Active Dry Yeast. Just mix according to the directions and your bait is ready to go. Use with the PVFS Wood Fly Trap (sold separately). Works best if placed in a sunny location For complete product information and mixing directions, click Use Instructions under Useful Information to download. Fly