The theory of ultrasonic repellents is to create a sound irritating to rodents, but yet at a frequency out of the range of human hearing. Even though sound may be created that can be heard by rodents and not heard by humans, there is little data to support that these devices repel rodents.
The answer is NO they do not work. The short answer is no, ultrasonic rodent repellents don't work. Some homeowners have noted an immediate effect at first, but over time the rodent problem will continue to persist.
Instead of catching mice, like mouse traps do, ultrasonic devices emit sound waves at a frequency that mice find absolutely unbearable. Ultrasonic devices with a sound frequency of 10,000 Hz are most effective at keeping mice away. It's best to buy several of these devices and replace them every 3 weeks.
Some common repellents include peppermint oil, mothballs, and ammonia.
Ultrasonic devices emit sounds that drive rodents like mice and rats away. Pests are repelled as they cannot adapt to the changes in the frequencies emitted by the device. Your home becomes inhospitable for the critters, as their biological functions are destabilized.
To discourage mice, remove all food sources by storing grains, pet food, and other dry goods in metal containers. Make sure mice won't find nesting material by storing all soft, fluffy material like fabric, rugs and blankets in heavy plastic or metal boxes.
Can Affect Human Health Over Time. Ultrasonic pest repellers are designed to be above human hearing level, however, adverse health effects could potentially arise after being exposed to the sound for an extended period of time.
Zinc phosphide is an acute toxicant that causes the death of a house mouse within several hours after a lethal dose is ingested. It appears to be the fastest way of getting rid of mice by reducing their population.
Mice need a place to nest and nearby food in order to survive and multiply. In a context where you abruptly remove the food, the environment would suddenly not be able to sustain such a large number of mice; therefore, mice would look for more favourable environments and many, if not all, would leave.
Electronic mouse repellents operate under the idea of using high-frequency sounds to drive mice away from food sources and nesting grounds within human homes. Sonic or ultrasonic devices have been touted as repellents for everything from roaches to insects to rodents, specifically rats and mice.
For example, if mice smell cat urine, mice are likely to leave the area to avoid the predator. Stowers discovered that pheromones travel through the mouse nose to the brain, where the pheromones will interact with neurons which stimulate emotions. In this case, it's the smell of cats that sparks fear in mice.
Will sleeping with lights on keep mice away? No, sleeping with lights on is ineffective for keeping mice away. Mice are nocturnal creatures and are less likely to be deterred by light.
Ultrasonic repellent devices emit high-frequency sound waves that are inaudible to humans, but irritating to mice. These devices can be plugged into outlets in your home. Keep in mind that their effectiveness might vary, and they usually work best in combination with other prevention methods.
Use smells
Peppermint essential oil and clove essential oil have strong scents that will repel mice by irritating their noses. Did you know that mice don't like spicy things? Putting spicy hot sauce in dishes around potential entry points will stop them from entering.
According to the National Institutes of Health, people who are exposed to ultrasonic noise over time can suffer from nausea, headaches and migraines, ringing in the ears (tinnitus), and fatigue. 2 Plus cats and dogs can hear frequencies twice as high as humans can and ultrasonic sounds.
According to the producer, the most effective frequency range lies between 10 and 12 kHz for birds, between 20 and 30 kHz for rodents, and between 30 and 40 kHz for insects.
A dead mouse repels other mice, which is why it's important to get rid of them immediately.
Signs of an Infestation
A much more likely scenario is that you're already too late. Spotting one elusive mouse typically means there are at least five or six hiding out in your walls, basement, or attic. This is particularly true if you see a mouse at night or in a low-traffic area of your home.
If you're struggling with a mouse infestation in your bedroom, it's crucial to take immediate action. Not only can these pests disturb your sleep, but they can also spread diseases such as Hantavirus Pulmonary Syndrome, Leptospirosis, and Rat-Bite Fever.
Will Mice Leave If No Food? It all depends, while mice do not just go away on their own, reducing the amount of readily available food that they have access to can help in deterring them from infesting your property.
There is truly no data, aside from anecdotal information on various internet sites, as to the effectiveness of these devices. For rodent control, anecdotal data may indicate that these devices can provide some level of control for a short period of time. But rodents seem to learn to avoid the mechanisms used.
Scent repellents, like plug-ins, granules, sprays, or scent sachets are common types that focus their repelling power solely on a rodent's sense of smell. These repellents are safe for kids and pets when used as directed and are formulated with poison-free, non-toxic materials like peppermint or essential oils.
These sound waves are typically above the range of human hearing, making them inaudible to people but disturbing to certain pests. These repellers claim to create an environment that pests find uncomfortable, encouraging them to leave the area or avoid it altogether.