Why Asian Lady Beetles Invade Homes In Fall

Asian Beetles on the Loose

It's that time of year. The first warm day after a cool night, and your home is suddenly covered with hundreds of biting Asian Lady Beetles. If your home isn't sealed up tight, they will likely find a way in, as they look for a warm place to hibernate in North Dakota for the winter.

According to Islas Garden Seeds, the first near-freezing night, followed by a warm day, Asian Lady Beetles look for overwintering sites just like their native Asian cliff-side habitats. And did you know they are attracted to certain colors, much like mosquitoes? They are especially drawn to light-colored buildings like white, tan, or yellow, and sunny south- or west-facing walls (I'm glad I have a dark grey home).

Yes, They Bite

Asian beetles can bite humans, and occasionally do. It's when they are looking for moisture to suck on. They use their mouth to nip at you, and although they do not inject any venom, it can leave bumps on your skin. It feels like a small pinch. The bite leaves no lasting damage.

How to Get Rid and Prevent Them

If they do find a way into your home, the best thing you can do is vacuum them up. You don't want to squish them because they will leave a foul-smelling yellow stain on your walls. The best way to prevent Asian Lady Beetles from entering your home is to seal up all cracks around your home; otherwise, they will likely find a way in.

I know they used to get into our previous home that was an older home. Any nook or cranny, and you can bet they will find a way in. Keep that vacuum handy.