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Ultrasound Roach Repellent

By Edriaan Koening ; Updated September 21, 2017
Ultrasound repellent devices supposedly keep roaches away.
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The makers of several electronic devices claim the gadgets keep roaches away by emitting ultrasound. Humans can't hear the noise, but roaches allegedly hate it and will leave any area where they can hear it.


Ultrasound repellent devices plug into wall sockets or use batteries for energy. Some battery-powered models come as pet collars and portable cards. Manufacturers claim that these devices repel insects, rodents, birds and other pests.


No scientific evidence suggests that ultrasound has any effect on roaches or any other insects. Entomologists agree that ultrasound repellent devices generally can't repel roaches, and that other methods can better control roach infestations.

Roach Hearing

According to the University of Maryland, roaches don't have ears, so ultrasound repellent devices won't affect them.


About the Author


Edriaan Koening began writing professionally in 2005, while studying toward her Bachelor of Arts in media and communications at the University of Melbourne. She has since written for several magazines and websites. Koening also holds a Master of Commerce in funds management and accounting from the University of New South Wales.