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Ultrasonic pest control

Discussion in 'Audio' started by Palmer88, Sep 29, 2020.

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  1. Palmer88

    Palmer88

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    Sep 29, 2020
    Greetings All,

    I recently discovered these forums and decided it would be a perfect opportunity to seek assistance regarding pest control.

    You see, my house often gets infected by all types of bugs and insects, so we have decided to try a new non chemical method for our property. I researched ultrasonic repellers and thought it would be worth a try.

    Can anyone recommend ways to ultrasound a whole house with one major device? Do you think a ultrasonic speaker or hailing system would be effective?? - Something silent but with great sound pressure?

    Looking forward to recommends?
     
  2. bertus

    bertus Moderator

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    Nov 8, 2019
  3. Palmer88

    Palmer88

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    Sep 29, 2020
    Hi,

    Fortunately we don't have any dogs or cats and none of our neighbours do as well. Thankyou for your recommendations, do you think they will be able to cover a medium sized home, we were hoping for one large one instead, that can cover quite a distance and has really good sound pressure. I looked around and didn't discover much that could cover our needs, so thought maybe a strong ultrasonic speaker could do it?
     
  4. bertus

    bertus Moderator

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  5. Alec_t

    Alec_t

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    Jul 7, 2015
    I doubt you'd get whole house cover with a single transducer, as ultrasound is fairly directional and tends to be readily absorbed by furnishings.
     
    bertus likes this.
  6. ChosunOne

    ChosunOne

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    Jun 20, 2010
    From Wikipedia:
    "Ultrasound generator/speaker systems are sold as electronic pest control devices, which are claimed to frighten away rodents and insects, but there is no scientific evidence that the devices work."
     
  7. ChosunOne

    ChosunOne

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    Jun 20, 2010
    For some reason, I can't edit my former post.
    I want to add that the Wikipedia quote is followed by source references, which I leave to OP to follow up on, or not.

    EDIT: Now this is odd. The forum is letting me edit _this_ post. But it still won't let me edit my 1st post.
     
  8. Alec_t

    Alec_t

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    Jul 7, 2015
    There is also the possibility that the ultrasound could attract pests (e.g. if it mimicked the mating call of a mosquito or whatever :D).
     
  9. shrtrnd

    shrtrnd

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    Jan 15, 2010
    About 40 (or more) years ago I looked into these ultrasonic pest devices when I lived in a roach infested apartment building.
    My experience was, it took me a long time to find a piezo speaker that actually output the frequency I built my circuit to produce, because manufacturers falsely claimed frequency responses the piezo elements didn't actually achieve. So I'd be suspicious of any 'made in China' unit on the market because they have about zero quality control on their stuff.
    My observation was, that after about 3 days I noticed a slight reduction in the roach population, I surmised that the unit MAY have been an irritant to a nest but only because I was using it in the kitchen, directed AT the under the sink area where they tended to be most prevalent. The downside was the experiment was a failure because roaches from the apartment next door would still come in on forays.
    My conclusion was that my circuit MIGHT work if directly pointed at a specific area, over a continuous period of time, but wouldn't cover any other area, like kitchen cupboards or counters. But I may have been wrong about that. So I believe in actual practical usage, the ultrasonic pest repeller devices are impractical at best, and possibly completely useless.
    As for whole-house coverage, that's a pipe-dream.
    The ONLY thing that actually worked to virtually eliminate the roaches in that apartment was the liberal application of boric acid. Took a couple of weeks for full effect, but did the job.
    If roaches or ants are your issue, that'll do it. Good luck if your pests are something else.
     
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