On 24-Nov-17, at 7:59 PM, Geoff Manning wrote:

> Randy Oliver said
>
>
>> Only then could you correctly assert that there is no
>> research supporting bottom supering above single-broodnest hives  
>> (as is
>> practiced in most of Australia
>
> I would suggest we mainly use under supering for convenience when  
> taking off
> honey.  There is an assumption, not supported by any work that I  
> have seen,
> that it also helps keep the brood nest open.

Hi Pete, Randy, Geoff & All

I assume that Szabo used doubles in this work, but I don't see why it  
shouldn't apply to singles also.  A disadvantage of top supering is  
tracking on the combs below.

DF] Effects of Top-Versus Bottom-Supering on Honey ... - Buzz About Bees
https://www.buzzaboutbees.net/support.../effectstopvsbottom-1.pdf‎
Working in Alberta, Canada, Szabo and Spons (1994) failed to detect  
differences in honey yield between colonies that were top- versus  
bottom-supered, They ...

Bob Darrell
Caledon Ontario
Canada
44N80W



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