Generally harmless to humans, Boxelder bugs are nuisance pests as they gather in large numbers on the warm walls of a home or business.
Boxelder bugs eat tree seeds. Although the boxelder tree is their favorite, they like all types of tree seeds. Luckily, they don’t do much damage. So if Western Timber Products Inc receives trees previously dined on by boxelder bugs, you wouldn’t see any damage.