Loading... Please wait...This all natural spray safely and gently uses essential oils to combat insects. It may be used frequently to ward off fleas, ticks, mosquitoes, biting flies and gnats. It is a great alternative to the harsh chemicals found in commercial products. The essential oils of Texas cedar wood, lemongrass, rosemary and geranium are all noted for their natural repellant properties. You may also spray the bedding area for extra protection.