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Date: | Wed, 16 Dec 2020 18:19:36 -0600 |
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On 12/16/2020 11:15 AM, Pete B wrote:
>> In the study reported, winter mortality among honeybee colonies in hives wrapped in slaters' felt was much lower where middle entrances were provided than with bottom entrances alone, apparently because of more favorable stimuli and better opportunities for flight. Colony strength, as measured by brood area in April, was also significantly greater after wintering with the added middle entrance.
> Continuing.... The degree of "upward ventillation" due to an entrance below as well as above the LOWER BROOD BOX gave no significant increase in brood area as compared with the middle entrance alone, but did give somewhat greater variation in the results among the colonies it was provided.
Curious....was this a study on a double brood box like it sounds?
Because if so, no matter which entrance, from my experience all those
entrances stated were located below the brood nest in the upper box and
would constitute use as the closest lower entrance. In a two box
configuration, the bees here will settle in the upper brood box to raise
their spring brood. They will choose the nearest entrance...whether
above or below for their spring cleansing flights.
For single brood box winter configuration, it would seem just as "easily
accessible" for cleansing flights to use the lower entrance should there
be no upper entrance. I would believe it's important to know, when
reading a study, what the actual configuration is, and where the study
was conducted? Iowa is not exactly the great white North.
Kevin McMahon
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