To repel armadillos, install a sound deterrent device, hang strips of reflective foil around the edge of your property, treat the perimeter of your yard with powdered coyote urine and treat the whole yard with a mixture of castor oil and detergent. Each additional layer of protection helps keep armadillos away.Continue Reading
The best sound deterrent devices use a combination of ultrasonic and sonic sounds that vary over time. Install the device outside in the area with the armadillo problem, pointed away from living areas.
Attach long, thin strips of iridescent foil to fence posts, tree limbs or other foliage on the edges of the property. The light reflecting off the strips scares the armadillos away.
Sprinkle commercial powdered coyote urine along the edge of the yard. Coyotes are natural predators, and armadillos avoid areas marked with their scent.
Spray a mixture of 16 ounces of castor oil and 4 ounces of liquid dish detergent over the yard. If armadillos get past the other deterrents, the bad taste of insects in the treated area discourage them from coming back.