Dave Eyre asks where supersedure fits into the beekeeping picture as a Good
Thing.
 
You can think of fall requeening as forced supersedure with a known queen.
  In both cases you end up with a nice, young queen going into the winter.
  The primary difference is that in one case you've spent some money and time
to put in something with (hopefully) known characteristics, while in the
other case you didn't invest any money and not as much time (you still have
to find and mark the new queen), and you don't know what you are getting for
awhile.
 
This doesn't mean that you are going to get a bad queen on supesedure.   For
example, I personally use swarms to start new colonies.  They nearly always
supesede the swarm queen sometime during the summer, and I always have kept
the new queen for those colonies.   I have yet to be disappointed with the
results.   Incidently, the biggest "turkey" queens I have had were expensive
pedigreed queens from a highly reccommended breeder (I won't mention names).
 
Remember that for most of us, the area drones either come from other managed
colonies, or from feral colonies that have held up to the mites and adopted
to the local conditions.
 
Changing subjects to hive wrapping: We in Maryland don't wrap colonies for
the winter, in fact we have been taught that wrapping causes moisture buildup
and other problems.  Judging from the recent postings, I gather in Canada
wrapping is a common practice.   I suppose there is a "wrap line", north of
which wrapping is advisable.   Any thoughts as to where this line is?
 
W. G. Miller
Gaithersburg, MD