三河マルシェ【MARCHE】三河エリアのコミュニティポータルサイト

It quite effective when sprayed right on the carpenter ants. Also referred to as Borax, it is quite good against cockroaches, ants, ticks, fleas, termites, and a lot of other insects. Another reason for this is that the majority of the insects and rodents are absolutely familiar and used to the higher frequency sounds produced with these devices here.

 

So your family visitors will not notice you have pest problem at all. Compared to other methods, ultrasonic mouse repellent control is not expensive at all and does not require much maintenance. So it should always be your first and long term pest defense.. Since these devices are not regulated under the Federal Insecticide, Fungicide, and Rodenticide Act in the United States, the EPA does not require the same kind of efficacy testing that it does for chemical pesticides.There are two types of electronic pest control devices widely available: electromagnetic and ultrasonic.Electromagnetic ( pest repelling devices claim to affect the nervous system of ants, spiders, mice and other rodents.Ultrasonic devices operate through emitting short wavelength, high frequency sound waves that are too high in pitch to be heard by the human ear (generally accepted to be frequencies greater than 20,000 Hz).[1] Humans are usually unable to hear sounds higher than 20 kHz due to physiological limitations of the cochlea, though there is considerable variation between individuals, especially at such high frequencies. Some animals, such as bats, dogs, and rodents, can hear well into the ultrasonic range.[2] Some insects, such as grasshoppers and locusts, can detect frequencies from 50,000 Hz to 100,000 Hz, and lacewings and moths can detect ultrasound as high as 240,000 Hz produced by insect hunting bats. Contrary to popular belief, birds cannot hear ultrasonic sound.[3] Some smartphone applications attempt to use this technology to produce high frequency sounds to repel mosquitoes and other insects, but the claims of effectiveness of these application and of ultrasonic control of mosquitoes in general has been questioned.

 

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