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  2. Animal repellent - Wikipedia

    en.wikipedia.org/wiki/Animal_repellent

    High-frequency whistles are used on vehicles to drive deer away from highways, and similar devices are used to deter certain types of insects or rodents. Repellents of this kind for domestic cats and dogs include ultrasonic devices which emit a high-frequency noise that does not affect humans. These types of non-chemical repellents are ...

  3. Electronic pest control - Wikipedia

    en.wikipedia.org/wiki/Electronic_pest_control

    Electronic pest control is the name given to any of several types of electrically powered devices designed to repel or eliminate pests, usually rodents or insects. 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.

  4. Dog whistle - Wikipedia

    en.wikipedia.org/wiki/Dog_whistle

    The top end of a dog's hearing range is about 45 kHz, while a cat's is 64 kHz. [3] [4] It is thought that the wild ancestors of cats and dogs evolved this higher hearing range in order to hear high-frequency sounds made by their preferred prey, small rodents. [3]

  5. Acoustic harassment device - Wikipedia

    en.wikipedia.org/wiki/Acoustic_harassment_device

    These often employ shrill sounding screams broadcast between 12 and 17 kHz. Acoustic deterrent devices normally broadcast near 10 kHz and use high volume. [3] The intensity level of acoustic harassment devices has been measured up to 194 dB re 1uPa @ 1 m and the noise can be audible up to 50 kilometers away. [3]

  6. Eight ways to repel insects without bug spray - AOL

    www.aol.com/lifestyle/eight-ways-repel-insects...

    Ticks are more than a nuisance for our dogs. These troublesome arachnids are found in every habitat in the US, and we host more than 90 of the world’s 900 tick species.

  7. Cat repeller - Wikipedia

    en.wikipedia.org/wiki/Cat_repeller

    A cat repeller is a device or substance used to discourage cats from entering an area, or to encourage them to leave if they do enter. Such deterrents are most commonly used by gardeners, in order to prevent damage to their gardens, to avoid cat feces , or to protect birds .

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