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Subject:
Re: Varroa killer sound
From:
Robert Darrell <[log in to unmask]>
Reply To:
Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:
Wed, 28 Dec 2016 10:51:56 -0500
Content-Type:
text/plain
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On 28-Dec-16, at 9:00 AM, Przemek Skoskiewicz wrote:

>
> The frequency of  14.500 – 15.000 Hz with 90 Dezibel is audible

Hi All

There seems to be confusion here.  The stated 14.000 - 15.000 hz is  
surely 14 - 15 khz.  15 hz @ 90db would likely shake a hive to  
pieces.  90db is near the threshold of pain at almost all audible  
frequencies whether you can hear it or not. But maybe this guy has got  
something.

Bob Darrell
Caledon Ontario
Canada
44N80W
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