CEDAR HILLS, Ore. (KOIN) -- Yellow jacket and wasp populations exploded in Oregon and Washington this summer because of the warm, dry weather.
The Department of Natural Resources in Washington received so many complaints about hornets and wasps that it issued a statement denying a rumor the DNR releases yellow jackets to control insects.
The hornets in Len Roland's backyard is busier than a downtown exit ramp at rush hour.
"My daughter noticed them. She works out her and keeps the yard," he told KOIN 6 News.
Mac Hormann of Green Choice Pest Control said he's busier spraying for hornets and yellow jackets than he's ever been in the five years he's been in the business. On Thursday, his company went to a half-dozen homes or businesses, including Roland's, to deal with the yellow jackets.
"I worry about them for my customers because they're very aggressive. A lot of my cutomers have small kids, a lot of them are allergic," Hormann said.
The problem began with the mild winter, he said, when more queen bees survived. The beautiful summer only contributed to the population growth.
"They're carnivores. They eat other insects," he said. "The long dry spell we've had with no rain, so all the other insects are reproducing at a mass rate giving these guys plenty of food. It's just one big cycle."
It won't calm down until the rain returns and the weather cools, he said. In the meantime, he said to keep your eyes open and be on the lookout for yellow jackets, hornets and wasps.
"A lot of people don't know they're there. You'll be walking around and you can walk over top of one (nest), break it open and you're pretty much screwed."
The record-setting cold temperatures continues to grip Oregon, freezing and bursting pipes, keeping cars from starting and forcing administrators to announce closures on Sunday.
Citing nearly a foot of snow and frigid temperatures, officials from Oregon State University announced their main campus will be closed on Monday -- even though it is the first day of finals week.
A Multnomah County deputy who stopped on the Fremont Bridge to help a disabled motorist was injured when a car lost control on an icy spot and hit the guard rail.
Police cars were damaged in two separate incidents when drivers ran into them, one by a suspected drunk driver, the other by a man fleeing in stolen car.