At a time of year when spiders, wasps, moths and other creepy crawlies are overwhelming properties and sneaking their way uninvited into houses, some pest control guys had a different answer Wednesday for what the biggest pest problem is right now: voles.

“The ecosystem has just said, ‘Hey, this year, we give you voles,’” quipped Jitterbug Pest Control co-owner Joe Clements as he visited yet another home with a vole issue Wednesday evening. “This is the worst year I’ve ever experienced.”

Clements told KSL TV his mom-and-pop pest control business has been fielding about 20 calls per day about voles, also known as meadow mice, carving “runways” and digging golf ball-sized burrows into unsuspecting yards.