Boxelder bugs are a nuisance pest that is typically noticed throughout the fall as large numbers of them seek shelter in homes and businesses. Essentially harmless to humans and plants, they are still disconcerting and can be managed effectively.
Boxelder bugs are active during the day, prefering to feed
These insects live in trees, particularly their namesake, the boxelder tree. This is where they lay their eggs and feed thougout the spring and summer. They gain entry to a structure through exterior cracks and open windows.
Boxelder bugs do not spread diseases but can leave stains from their excretion.
Remove harborage sites such as leaf piles, mulch piles or other vegetation. Seal cracks and crevices well to prevent structural entry.