Here is another recipe that I got from wellnessmama.com site:
Homemade Bug Spray Ingredients
Essential oils: choose from Citronella, Clove, Lemongrass, Rosemary, Tea Tree, Cajeput, Eucalyptus, Cedar, Catnip, Lavender, Mint
Natural Witch Hazel
Distilled or boiled Water
Vegetable glycerin (optional)
Homemade Bug Spray Instructions
Fill spray bottle (I used 8 ounce) 1/2 full with distilled or boiled water
Add witch hazel to fill almost to the top
Add 1/2 tsp vegetable glycerin if using
Add 30-50 drops of essential oils to desired scent. The more oils you use, the stronger the spray will be. My personal favorite mix is: Rosemary, Clove, Cajeput, Lavender, Cinnamon and Eucalyptus. It works great and smells good too!
Click here to watch a video that shows how to use a diffuser to repel bugs.
Click here for the recipe for the above bug-repelling mason jars