Sowbugs, also known as woodlice, are small, soil-dwelling crustaceans, not insects. They typically measure between ¼ to ½ inch long and are more closely related to lobsters than bugs. These critters have gray, oval-shaped bodies made up of segmented plates and are slightly domed in appearance. Sowbugs have seven pairs of legs and two sets of antennae, although only one pair is usually visible.
They’re often mistaken for pillbugs, but there are a couple of key differences. Pillbugs have more rounded, dome-shaped bodies and can roll into a tight ball when threatened. Sowbugs, on the other hand, cannot curl up and usually run when disturbed.
Good news—sowbugs are not dangerous. They don’t bite, sting, or carry diseases. Their diet consists mainly of decaying organic matter, so they rarely harm healthy plants. However, if no other food source is available, they may nibble on the roots of young plants.
If you spot sowbugs inside your home, it’s likely due to a moisture issue. While they aren’t destructive, their presence indoors may indicate excess moisture—something worth checking out.
Sowbugs are drawn to environments that meet their basic survival needs: food, moisture, and shelter. They thrive in damp, shaded places and feed on organic debris like dead leaves and decaying plants.
Outdoors, you’ll typically find them under rocks, mulch, or in garden soil. Indoors, basements are a common hideout thanks to the cool temperatures and higher humidity levels.
Sowbugs often come indoors when outside conditions become too dry or hot—something that happens frequently during an Arizona summer. They’re moisture-seekers, and your home may offer a cooler, more humid retreat.
Sometimes, they simply wander in by accident. Cracks in your foundation, gaps around doors or windows, and other small openings can serve as easy access points.
A sowbug infestation may or may not indicate a bigger pest problem. Because they feed on decaying organic matter, if you find sowbugs in large numbers around your yard, it might mean that there is a lot of pest activity around your property.
It’s also possible that a sowbug infestation is present because there is too much moisture on your property or in your home. Sowbugs need moisture to survive, so if your gardens are overwatered, you have a leaking pipe in your house, or there’s a lot of humidity in certain areas of your house, it could be attracting sowbugs, and possibly other pests as well.
The most effective way to eliminate sowbugs is by partnering with Termio Pest Control. Our locally owned and operated team knows the unique pest pressures of the Phoenix area. We’ll inspect your home, create a customized treatment plan, and implement control strategies to get rid of sowbugs (and other pests)—and prevent new infestations.
Preventing sowbugs starts by eliminating the things that attract them and making it difficult to get into your house. The following preventative tips will help:
Control moisture outside
Reduce humidity inside
Minimize hiding spots
Eliminate entry points into your house
If you still need help either preventing or eliminating sowbugs, give Termio Pest Control a call today!
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