Things You'll Need
Instructions
Fill a vial or other small glass or plastic container with cotton wool.
Combine 10 drops of lemongrass essential oil with 5 drops of geranium and one drop of lemon or lime in a bowl and stir.
Drip the mixture into the vial. You can use a bit of cotton wool to soak up the last traces. Seal the vial if you do not plan to use it immediately.
Place the vial in the back of a swarm trap, removing the seal if necessary.