Boxelder Bug


Boxelder Bugs

The Boxelder bug is a major pest problem in the Pacific Northwest during the Spring and Fall seasons.  During the Spring, they use the warmth of our homes and structures to mate and lay their eggs.  In the Fall they come down from the trees seeking warmth through the cracks and crevices of our homes and structures.

Boxelder Bugs are black in color with red lines along their thorax and sides.  Their wings are flat and red.  They measure between 11 to 14 mm long.

Box Elder Bug Behavior

In their proper habitat, Boxelder Bugs inhabit ash, maple and seed-bearing Boxelder trees, feeding on soft plant tissues, leaves, and flowers.

The main concern with Boxelder Bugs in our area is that they have no major known predators, which allows their reproduction rate to get out of control if left untreated.  In Spring they can swarm and cover the warm sides of houses and buildings by the hundreds of thousands, literally covering the entire surface.

When the colder weather arrives and they seek the indoors. Boxelder Bugs become a major nuisance and health hazard inside our home, commercial, and industrial properties.  The primary health concern comes from the excrement they leave behind on curtains and other interior surfaces.