To keep deer from eating your trees, you can either put up barriers or install a deer repellant. Barriers that protect trees from deer include tree wrap or fencing. You can also plant deer-resistant trees to prevent deer from eating or scraping against your trees or garden with plants that deer don’t like to be around.

Regular lawn care keeps snakes away because it eliminates common hiding places. You can deter snakes by trimming grass, shrubs, and trees and removing weeds from your lawn and gardens. Clear away leaves and other debris that could serve as a potential snake habitat. You can also seal entry points around building perimeters and install metal snake fencing.

According to the Internet Center for Wildlife Damage Management, no frightening devices are proven effective for squirrel control. This is likely because the squirrels quickly become habituated to the noises. However, strobe lights show some promise, so motion-activated lighting could be an option worth considering as part of your integrated pest management strategy.

Identifying the specific animal running on your roof at night can be challenging without direct observation. Common nocturnal roof visitors include raccoons, squirrels, opossums, and rats. Raccoons are bigger and can create heavy thumping sounds. Squirrels are agile and may produce rapid scurrying noises. Opossums tend to move stealthily with less noise. Rats can make scratching or gnawing sounds. To determine the culprit, look for signs like footprints, droppings, or damaged areas near the roof. For accurate identification, consult a pest control professional or set up wildlife cameras near potential entry points.