Identify Your Pest

Boxelder Bug Size - How to Get Rid of Boxelder Bugs

BoxElder Bug

Quick Facts


Bodies can range up to 1/2 in (13 mm) long.

Preferred Habitat

They prefer sunny areas such as bushes, stones and buildings during the cold months and move to their host trees during the warmer months.

Known Health Issues

Bites can resemble those caused by a mosquito. Normally just slight irritation.
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As pests, boxelder bugs don’t cause significant damage to agricultural crops, but they do tend to swarm homes. They enjoy sunning themselves near the plants they feed on and congregate on rocks, shrubs, trees and other structures to absorb the warmth. They prefer these sunny areas during cold months and then move to host trees in the summer. This becomes a problem in the winter months when they try to get inside homes to avoid the cold. They will lay dormant in walls or siding until heaters from inside the home trick them into thinking it’s spring, which causes them to wake up and swarm the area in search of food.

Boxelder bugs are black with red markings with long skinny bodies that can range up to ½ in (13 mm) long. While they don’t have any negative health effects on humans, most people find them to be a nuisance because of their swarming habits and their odorous excretion. Boxelder bugs have been known to cause bites that resemble mosquito bites with slight irritation and itching. Don’t let boxelder bugs take over your home. Call Miller Pest & Termite today!