Baiting the Trap. Fill the bottle, through the spout that now faces downward, with 1/2 to 1 cup of liquid. You can use juice, soda or simple syrup (sugar dissolved in water) to entice the yellow jackets to the trap.
How to Make Yellowjacket Attractant. If you want to trap the yellow jackets, you should use a 2-liter bottle.. Find a good spot to put the container or trap.
Place traps as close to the yellow jackets' nest as possible. Since they had built their nests (yes, I said nests, plural, but I will explain that later) in the ground, .