Karen, the armadillos we've had just kind of wander through the yard, so they haven't been destructive. I suppose they could be if they decided to nest in the area or something--I think they chew things like other rodent type animals. The most destructive critter we have in our yard are the squirrels. They've completely destroyed our patio furniture pads--they tear them open to get the batting for their nests. We've started putting the chair pads inside when we go on trips so we'll have something left when we get back.