Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!versatc!mips!vaso
From: vaso@mips.COM (Vaso Bovan)
Newsgroups: sci.electronics
Subject: Re: Need Electronic Pest Control Circuit
Keywords: Scam
Message-ID: <23011@quacky.mips.COM>
Date: 10 Jul 89 17:46:18 GMT
References: <12630@well.UUCP>
Reply-To: vaso@mips.COM (Vaso Bovan)
Distribution: sci
Organization: MIPS Computer Systems, Sunnyvale, CA
Lines: 14

In article <12630@well.UUCP> fgk@well.UUCP (Frank G Kienast) writes:
>
>I have a problem every year during the late summer and fall with crickets 
>gathering in the bushes outside my window.  It seems I once read in some 
>project magazine that it is possible to repel insects such as crickets using 
>ultrasonic frequency sound.  Could anyone point me to the source of a 
>relatively simple circuit for doing this?  Also where to get the ultrasonic 
>transducer that I presumably will need.
> 
"Ultrasonic Pest Control" does not work, notwithstanding the fact there are
manufacturers getting rich selling these fraudulent devices. As I understand
it, U.S. Army tests showed that such machines have little effect on mammals
such as mice and dogs, and no effect on mosquitoes and other insects. No I
can't quote a source.