Regarding the optimum number in a yard:
Correct me if I err; however, I remember reading an article to the effect
that as a beekeeper crowd a yard, the radius of foraging widens at the
same time, thus making the optimum number of hives in a given yard much
more difficult to arrive. In my own setup, I would not worry about under
twenty; however, I would, above thirty, a reason why I am in constant
search of another [good] location when my splits graduate.
Yoon
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