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Sunday, July 5, 2015

Extension Line

Wednesday, November 24, 2010

Bed bugs have gotten increased media coverage the past couple years. This week, I want to share portions of a recent article written by Ken Holscher, Iowa State University Extension Entomologist.

Holscher has been monitoring the level of bed bug reports for almost three decades, and has noticed an increase in the number recently. The reasons for the increase are hard to pinpoint, but there are some contributing factors. "It's probably a combination of things. First, everyone in society is more mobile than they used to be, and bed bugs are a worldwide problem. Second, there are lot more people moving [to Iowa] in the past few years, so they may bring the bed bugs with them. And last, we have changed the way we do preventative pest control spraying. We used to do a more general spray that took care of all insects. For example, we now target cockroaches by using bait, which does a good job of controlling cockroaches, but doesn't do anything for bed bugs," he said.

Holscher points out that bed bugs don't transmit diseases in this country, but can be a nuisance.

"Think of a bed bug as lazy," he says. "They spend 99 percent of their time hiding. They come out very briefly at night, run right up to the bed, find the first piece of exposed skin, and feed. It takes a few minutes for them to feed, then they go back to hide again."

Bed bugs will not go under the bed covers to feed, nor will they go inside pajamas or other clothes. So bites occur most often on the arms, neck and face.

One of the most common ways people get exposed to bed bugs is when they move into new residences. Renting an apartment can mean moving into a space that is already infested with the pests. People who buy property may inadvertently bring the bugs with them into a house or condominium.

Travelers may bring back bugs from trips. Here are a few simple ways to avoid the unwanted hitchhikers.

Since the most likely way bed bugs stow away is in your luggage, use the luggage stands provided in many hotel rooms to keep your bags off the ground and further from the bugs.

While sleeping, travelers may also want to put their bags in the bathtub. This keeps luggage far from the sleeping area - bed bugs don't usually go more than 10 to 12 feet away from a food source - and bathroom porcelain makes harder climbing for the bugs.

Wrapping your bags into a large plastic garbage sack for the night is also a good way to avoid problems.

In addition to travel, bed bugs are also brought into a house with second-hand clothes and furniture. "People love to go to flea markets and get great bargains," he said. "You should just make sure that you don't bring home more than you bargained for."

If you do pick up some bed bugs and bring them into your home, you can try to get rid of them yourself, but it may be a job for a professional. "You really have to know how to treat them and where to treat them," Holscher commented. "Professionals will have long-lasting treatments that are needed for bed bugs. But if you do hire someone, make sure they are credible."