Barks and Bubbles Natural Insect Repellent Spray Recipe. 8 oz of distilled water, 5 drops of lavender oil, 10 drops of citronella oil. Organic tick, flea, and mosquito repelling spray for humans, pet, and livestock! Spray on dogs before going outside, spray on livestock before free-ranging them. Just remember their undercarriage and avoid the eyes. #dogs #chickens #rabbits