What Is Chewing on My Deck

While squirrels are free to roam and find plenty of natural materials to chew on or eat during their daily rounds, they’ll sometimes chew on things they shouldn’t, such as a wood deck. Squirrels chew on such things to clean, sharpen and maintain their teeth, much like other rodents.

What causes holes in wood decks?

Carpenter bees don’t cause as much damage as carpenter ants or termites, but they do bore holes in your wood or composite deck . … These bees bore into wood or wood-like materials to build their nests.

What causes sawdust on deck?

The material that looks like sawdust around wooden steps, wooden window frames or other wooden material is insect droppings, or frass. There are two insects that produce sawdust-like frass: carpenter ants and drywood termites.