Anti-tick spray for dogs and humans: DO NOT USE ON CATS!!
Almost fill a 16oz spray bottle with water and add the following:
3 drops of dish soap (to act as emulsifier)
20 drops of geranium oil
10 drops of the following essential oils:
oregano
grapefruit
eucalyptus
peppermint.
Shake bottle before spraying and re-apply after the dogs get wet.
DO NOT USE THIS ON YOUR CATS!!!