Stink Bug Control in Waukesha County, WI

Brown marmorated stink bugs have become an increasingly common fall invader in Waukesha County. These shield-shaped insects release a pungent defensive odor when disturbed or crushed. Like boxelder bugs, they seek indoor overwintering sites in fall, entering through gaps around windows, doors, and siding. They've expanded their range in Wisconsin over the past decade.

Signs of Stink Bugs

• Shield-shaped insects on windows
• Foul odor when disturbed
• Buzzing flight indoors
• Clustering around lights

Common Locations

Prevention Tips

• Seal exterior cracks in August
• Install door sweeps
• Repair screen tears
• Use exterior perimeter spray
• Vacuum (don't crush) intruders

Wisconsin Climate Factors

• Cooling September temperatures trigger entry
• Expanding range with warmer Wisconsin winters
• Agricultural areas see higher populations

Seasonal Activity