Some
people give their hives just one deep brood box apiece (plus several
supers), but I've read that if you provide the bees a second deep brood
box, you'll have a larger colony and can harvest more honey. Last
year I didn't know any better, but this spring I decided to give the
double deep method a shot.
In the middle of May, I
added a second brood box to our middle hive,
checkerboarding the drawn brood frames with empty frames so that the
bees were using both deep boxes to raise their young. After
extracting a bit more honey Tuesday, I added up how many frames I'd
taken from each hive --- 2 frames from the east hive, 4 frames from the
"mean" hive, and 20 frames from the double deep middle
hive!
Since I've been
extracting all of the capped frames of honey I see this summer, I
figure these statistics are a pretty accurate assessment of how hard
the hives have been working. If anything,
I think the middle hive has produced even more honey than it seems ---
the second brood box has a lot of honey in it that I've just left alone.
Now all three hives are
converted over to double deeps. I don't expect it to do much good
for this year, but now I'll be ready for the queens to lay like
gangbusters next spring. In fact, barring another serious honey
flow (and both basswood and sourwood are now past), I think I'm
going to let the bees save the rest of the year's honey for their own
consumption. Four and a half gallons of honey --- not a bad haul
for three hives in year two!