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Subject:
Re: Varroa killer sound
From:
Jorg Kewisch <[log in to unmask]>
Reply To:
Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:
Wed, 28 Dec 2016 12:29:46 -0500
Content-Type:
text/plain
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text/plain (21 lines) 
On 12/28/2016 10:51 AM, Robert Darrell wrote:
> The stated 14.000 - 15.000 hz is
> surely 14 - 15 khz.

Yes, in Germany the comma is used for a decimal point and the point is
used as a separator. Also, in the English text they used the word frame
when they meant box.


From the web page:
Varroa mites act on frequencies from 12.000 to 17.000 Hz. Within this
range they changed their behaviour completely.

The bees are restless  between 2.000 to 8.000 Hz. Over 10.000 Hz there
is no reaction, either in bees or in the brood.

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