If there is one wild animal that deer fear most, it's the coyote. This is why homeowners should sprinkle coyote urine around the yard or near the fence enclosure to create the illusion that coyotes are near. Because of poor deer vision, whitetails rely on their sense of smell; and if they think this wild predator is near, they will run for the hills! Coyote pee is all-natural and will not harm the environment.
To use, place urine in a covered container with holes and let the scent diffuse into the air naturally.