Not only are pests annoying, but many pests can transmit diseases. Because of this, property owners and other individuals often take measures to combat these pests. Many of these methods use chemicals that act as repellents by containing smells that the pests do not like. However, these chemicals might contain elements that can be harmful to children or almost anyone else. Companies have developed products that use frequencies designed to combat pests.
One of the earliest products that uses electric frequencies to control insects is the bug zapper. This device attracts bugs to it and then sends electricity through them, which kills them, lowering their numbers. However, this method of pest control can cause the insects to explode, which send their bug parts all over. Not only is this repulsive, but the bug parts can spread diseases.
Ultrasonic soundwave frequencies create noises that can irritate pests. These frequencies are at a pitch that cannot be heard by humans, so no one nearby the soundwaves are annoyed. However, these soundwaves drive away insects. This device works the best at repelling rats and moths, though many other species do not like the soundwaves. According to North Carolina State University, a lot of the electronic devices have not been shown to repel insects in lab tests. Because of this, property owners might want to try other pest control options in combination with the frequency-based devices or not use these devices at all until manufacturers release a product that successfully repels the pests.
Electromagnetic devices create electromagnetic fields that drive away cockroaches and rats. These devices change their electromagnetic frequencies from time to time so that the pests do not get accustomed to the frequencies, ignoring them. This device can reduce the quantity of food that rats consume, which reduces their activity in the area.
Pests fear lightning for obvious reasons. Pests can detect lightning from the ions that the lightning leaves in the area. Some devices create ions themselves that frighten the pests away.
Some devices use frequencies to create vibrations. These vibrations distribute chemicals into the air, which serve as insect repellents. Property owners do not have to continually release repellents and can instead set up a device that periodically vibrates, releasing the repellents.
When flying around mosquitoes create a humming noise, with males and females creating their own distinctive hums. Some devices use frequencies to recreate these humming noises to drive away pests by making mosquitoes believe that there is competition in the area.