Seasonal Invader

Boxelder Bug Control

Black bugs with distinctive red markings that cluster on warm surfaces in fall, seeking shelter for winter throughout Chicagoland properties.

Size

1/2 inch long

Color

Black with red markings

Peak Season

September - November

Threat Level

Low - Nuisance Pest

Get Professional Help Learn More

Boxelder Bugs identification guide

Boxelder Bug Identification & Management

Physical Features & Behavior

1/2 inch long, oval-shaped body
Black with distinctive red/orange markings
Cluster in large groups on warm, sunny surfaces
Most active during fall months (September-November)
Seek overwintering sites in homes and buildings

Prevention & Control

Seal cracks and crevices around building exterior
Install tight-fitting screens on windows and vents
Vacuum up clusters (they don't reproduce indoors)
Professional barrier treatments before fall invasion
Remove boxelder trees (their preferred host) if possible

Professional Boxelder Bug Prevention

Prevent fall boxelder bug invasions with our seasonal prevention program for Chicagoland properties.

Call (708) 731-1748 Schedule Treatment