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Informed Discussion of Beekeeping Issues and Bee Biology

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Subject:
Re: Winter top vent ice
From:
Tracey Smith <[log in to unmask]>
Reply To:
Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:
Wed, 14 Feb 2024 10:47:19 -0500
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The 1983 ABJ Szabo paper referenced by PLB tested colonies with: 1) a top and bottom entrance, 2) a mid-top bored entrance and bottom entrance, 3) a fully open bottom with no top entrance, and 4) a reduced bottom entrance with a top entrance on the side of the hive. 

He found over two winters with 128 hives that the two top entrance wrap styles performed better: they ate less honey, had more brood, and larger populations. He found the bored mid-top entrance colonies had more drone brood than the top entrance colonies but otherwise they did not differ. 

He measured nosema levels in the colonies and found those results confusing. 

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