There's a pest lighting exterminators' phone lines lighting up and it's wasps.
Louis Barrow moved to his house in Rapid City about a year ago and recently noticed a problem.
"The yellow jackets started buzzing around the water feature in the back yard. They were coming from the trees and the plants," said Barrow.
Barrow wanted to fix this immediately, mainly for his wife.
"She's highly allergic and was stung once last week. So it was time to take some affirmative action to take care of that," he said.
Barrow put in a call to an exterminator. Robert Williams, owner of All Seasons Pest Control, used a spray residual application on Barrow's yard. Williams said he's been pretty busy with calls about wasps.
"It seems like right now we're just getting it with an onslaught of them. Last year it was more spread out throughout the year, the spring, summer and autumn. This year we didn't have too many until about a month ago. Phones started going nuts," said Williams.
Williams also said the temperature plays a role.
"I think the weather has a lot to do with it. We didn't start popping really hot temperatures until just recently here and that's when they seem to be most active," said Williams.
"We had a dry spell and it got a little warm and so they were pretty angry. And it got to the point where you couldn't go into the back yard without being buzzed or attacked or stung," said Barrow.
Now it's a problem Barrow won't have to worry about anymore.
There are "do it yourself" products to get rid of wasps, but experts say they don't always leave a lot of residual. But something is better than nothing, according to the experts.