In my opinion, not a very good idea:

1.  If you only move for 'one day', you would have to either move at
night or you would leave behind all the foraging force, which would be
very likely to bother the guests.  Are you prepared to pick up the
hive and move at night?

2.  If you move for a longer period, say two weeks before the
reception, you would still lose the foragers but they would not be
likely to bother the guests.

3.  In mid-summer you are likely to have a flow on in Vermont.  But
difficult to say for sure.

4.  Why not close them up?  Using 1/8" hardware cloth, make up a
screened cover and make a similar cover to block the entrance.  Fasten
them down with nails the night before.  DO NOT PUT A COVER OVER THE
SCREENED TOP.  If it rains, so what?  If you put a cover on you might
smother the bees if it is a really hot day.
When the reception is over, take the covers off.  The bees will be
nasty, but you can easily handle that by putting some 1:1 sugar water
in a sprinkler can and dosing the bees with at least a gallon
immediately before you remove the cover.  Don't worry, you won't drown
them.

Good luck,



--
Lloyd Spear
Owner Ross Rounds, Inc.
Manufacture of equipment for round comb honey sections,
Sundance Pollen Traps, and producer of Sundance custom labels.
Contact your dealer or www.RossRounds.com

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