Latest WI Pest: Brown Marmorated Stink Bug

The hits just keep coming, in the form of more unwelcomed six-legged visitors whose real home is across the waters.

A surge of invasive insects has washed over our Mukwonago neighborhood Pewaukee and Wisconsin in the past 2 decades: the emerald ash borer and gypsy moth to name a few. All are native to foreign countries. All have caused environmental and economic havoc in the U.S., where no natural predators exist to control them.

The latest invader winging its way here will literally make a stink.

The brown marmorated insect is ¾-inch long, with a wide back side that tapers to a point, and a rectangular head with long antennae. Native to China and east Asia, the insect has been journeying west since being first discovered in Pennsylvania in 2001.

Its name is well-earned. When disturbed or stepped on, the brown marmorated stink bug emits a strong, overpowering you'd invite into your Mukwonago home, right?

Fortunately, the brown marmorated stink bug hasn't arrived in large numbers in Mukwonago or WI. Stink bug control isn't much of an issue yet. Yet it's only a matter of time.

Farmers abhor them for more than their stink. The insects feed on tree fruits, vegetables, sweet corn and soybeans. Mid-Atlantic apple growers sustained an estimated $37 million in crop losses in 2010 to marmorated stink bugs.

The Asian invasive has a family member that is native to the U.S. The insect looks a lot like the brown marmorated version, except the colors of their undersides are different. We somehow doubt you'll get that far identifying them, though.

Brown marmorated stink bugs like to winter inside Mukwonago homes. If you crack one, you'll figure it out quickly. The nose knows. If you see more in your Mukwonago house or yard, don't smush them – contact The Mosquito Guy to address their presence in a safe, non-stinky fashion.  Unlike these bugs, we'll never stink up your joint.

Getting Rid of The Unwanted Insect: Brown Marmorated Stink Bug near Mukwonago, WI