Armadillos are nocturnal mammals that like to dig in the ground for earthworms, snails, cockroaches, wasps, ants, scorpions and other pests and are notoriously hard to deter. Although armadillos can help control nuisance insects, their digging often damages lawns and gardens. Armadillos also sometimes carry the bacterium that causes leprosy, although scientists aren't sure whether humans can catch leprosy from armadillos. There aren't any poisons or sprays you can use to get rid of armadillos, but there are several other strategies you can use to protect your grass or garden.
Armadillos eat grubs and insects, so reducing the grubs or insects in your lawn or garden can reduce your armadillo problem. Watering your grass or garden less frequently and cutting back on fertilizing decreases the amount of earthworms and other grubs in the soil, which may eliminate an armadillo problem.
You can trap armadillos in metal cage traps designed for raccoons or in 6-inch diameter PVC pipe placed in the entrance of a burrow. Place traps in the late afternoon and check them a few hours after nightfall. If necessary, bait armadillo traps with spoiled fruit or live earthworms. Check local regulations before releasing trapped armadillos in another area.
If shooting armadillos is legal in your area, it may help you solve your armadillo problem. You can eat armadillo meat, too. However, it can be time-consuming to find and shoot armadillos at night. Using artificial lighting to shoot armadillos is illegal in some areas.
If you can't get rid of armadillos in your area using other strategies, use fencing to exclude the pests from your garden or from special plants. Install outward-slanting fences that are 24 inches tall and have 18 inches of fencing buried underneath the ground. You can also use electric fencing to keep armadillos away or discourage armadillos from returning by filling their burrows with dirt and mothballs at night.