[Bonanza]

Originally Posted by La lamy

I use plug in Ultrasonic Pest Repellers near every sink and they seem to work. Not sure if they would help with attic rats though.

The University of Arizona found that ultrasonic pest devices are not an effective way to treat pest problems. The U.S. Dept. of Agriculture and the National Wildlife Research Center has found that rodents have stopped responding to the sounds after a few days of exposure.

While some ultrasonic repellents may have a minor short-term impact on some pests, the research is nearly universal: Ultrasonic pest repellers are not an effective option for preventing or eradicating pests.

Please note that the ultrasonic sounds created by these devices CAN be harmful to your pets.