Homemade Wasp Trap 1) Cut the neck off a plastic pop bottle. 2) Remove the bottle cap and flip the neck upside down and place it in the bottle opening that you just cut. 3) Tape together using packing tape or duct tape. 4) Bait the trap. The easiest is sugar and water, but I've also read that meat works well in the spring and early summer because wasps are attracted to protein, or other options are sugar and water, water and vinegar, beer, soda, even laundry detergent.