Re: Reasons to replace honey/brood combs periodically
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10 Frame Entrance Guard with Excluder [this is a queen excluder to go over the hive entrance]
Avoid swarming and ensure that your queen and drones stay in the hive with our Entrance Guard with Excluder.
First developed in 1900, the slatted rack is essential for overwintering and swarm control in the North.
It's important to cite these sources in a proper academic manner, and to look at what they are actually saying.
10 Frame Cloake Board
...making it a must have for beginners to queen rearing.
The perils of benefactors; The blessings of parasites; Blindness blindness and sight -Joni Mitchell 'Shadows and Light'