Bats can be a nuisance to homeowners both in their ability to transmit disease and in frequent nighttime attacks as they search for food. The Internet is filled with the ads for ultrasonic repellents for birds, bats and every other pest under the sea. Research has found that these ultrasonic cure-alls are not effective repelling bats from your home and yard.
The Myth of Ultrasonic Repellent
Ultrasonic pest repellent is based on the idea that high-frequency sounds can be such a nuisance that pests such as bats will be repelled. It's not unlike how dogs will bark at the sound of a dog whistle. The sounds emanating from these machines cannot be heard by humans, but supposedly can be heard by everything from bats to fleas and ticks.
According to the U.S. Department of Agriculture, most pests hear in the same range as humans do. Some claim that a bats hearing is supersensitive because of its use of sonar in hunting, but there have been no findings that these ultrasonic machines cause problems or are a nuisance to bats.
Bats are also flying animals, and scientists have shown that these ultrasonic sounds are at half strength at 15 feet and completely gone at 30 feet. There have been some successes in using high-frequency sounds in deterring bats, but nothing from low-cost commercial products. In fact, if the rats and bats were repelled by the devices, your dogs, cats and other pests would be also.
Effective Ways to Eliminate Bats
There are other ways to eliminate bats from the home that have been proven. According to the U.S. Geological Survey, Naphthalene is the only chemical approved by the Environmental Protection Agency in the elimination of bat infestation. While the strong odor of Naphthalene will deter bats, it can also be harmful to humans if inhaled.
Bats are nocturnal animals and there has been success in repelling bats using artificial lights. Bats will flee an area that is constantly lighted or retreat to the periphery. Also, the sounds of bats in distress have also been shown to repel bats, as well as the use of sticky traps like those used against mice and rats. This is not the most humane way to eliminate your bat problem and would require you to retrieve and dispose of the bats.
Do Electronic Sound Machines Work to Repel Rodents?
Electronic rodent repellents are ultrasonic pest control devices that emit a series of high frequency, short length sound waves designed to drive...
How to Get Rid of Bats With Sonar
When bats have taken up roost in your attic or around your property, it can be a real nuisance. To rid your...
How to Get Rid of Bats With Spearmint Oil
Bats are harmless flying mammals that are nocturnal. They like to roost in quiet, dark enclosed areas like wooden bridges, barns, dead...
How to Use a Plastic Owl to Keep Bats Out
Bats are beneficial mammals that eat 30 to 100 percent of their body weight in insects each night. However, you may want...
How to Keep Bats Away From a Swimming Pool at Night
Bats are attracted to certain areas and once the pests set up home, it's difficult to remove them. Bats can continue to...
How to Repel Bats
Bats are beneficial nocturnal flying mammals that prey on pests such as mosquitoes, termites and cockroaches. However, in certain situations bats can...
How to Chase Bats Away
Bats may use your home as a nursery or hibernation site, or they can fly in by accident. The dark, moist, safety...
Using Sound Frequency Devices to Repel Insects
Pesky biting insects can force even the most ambitious gardeners back indoors. By appealing to consumers' appetite for environmentally friendly, nonchemical products,...
Does Ultrasonic Repellent Work?
Repellents, traps and other tools meant to eliminate or prevent pest attacks or invasions can sometimes have questionable health effects or be...