Ultrasonic pest control
| Style over substance|
Ultrasonic pest control is a method of using ultrasound, sounds above the range of human hearing (generally >20kHz), in an attempt to repel pestilent insects or rodents. Devices that use ultrasound in an attempt to repel pests are widely marketed. Generally, ultrasound does not work, and when it gives a false sense of security (e.g. prevention of bites from malarial mosquitoes) it can actually be dangerous.
- Bugs: Ultrasound can have an effect on some arthropods.
- Rats: A study of commercial ultrasound on rodents concluded that the devices were marginally effective and that rodents rapidly became habituated to the devices.
In June 2012, Brazilian station Band FM broadcast a 15kHz tone under its music and told its listeners to "relax in the open air without fear of getting bitten" by mosquitoes. The 15kHz broadcast was sponsored by the magazine GoOutside.
- Bhadriraju Subramanyam (Subi) (2001). Ultrasound and Arthropod Pest Control: Hearing is Believing!. Kansas State University.
- Enayati A, Hemingway J, Garner P. (2007). [Electronic mosquito repellents for preventing mosquito bites and malaria infection]. Cochrane Database of Systematic Reviews.
- Ultrasound mosquito repellents: Zapping the myth by William Kremer (11 December 2012) BBC.
- Electronic Rodent Repellent Devices: A Review of Efficacy Test Protocols and Regulatory Actions. University of Nebraska — Lincoln.