"I am currently running a trial to test whether the crushing of bees on
the top bars negatively effects colony buildup and survival."
When looking at other people's hives it is common to see lots of
squashed bees resulting from one box being put directly on top of
another. It is easy to avoid this either by lowering the upper box
diagonally until a smidgeon above the one below and then twisting it to
the final alignment, thus brushing off bees that are on the upper rim
of the lower box; or else lower it at the correct angle but offset by
an inch or so, easing it gently into its final position. Bee space
usually avoids crushing bees on the top bars.
Chris
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