Doug,
 
   It's good practice to rotate out brood comb ever 2-3 years, (say two
frames per box per year.)  This let's you not have to try draw a whole
box worth at once, and allows the brood comb to be renewed.  Any toxins
go with...
 
   My honey supers are a different height from the hive body, (so a
loaded super won't be so heavy,) so I wouldn't want to interchange them.
 
   Comments from the list on small bees??
 
 
Gerry and the other Visels at
[log in to unmask]
Winnebago, Illinois, USA
 
On Thu, 31 Oct 1996 21:15:21 -0600 Doug Henry <[log in to unmask]>
writes:
>
>During discussions with other beekeepers at the show I was told that
>continued use of the same brood chambers over a prolonged period of
>use
>would lead to smaller bees. The theory being that brood cells become
>smaller due to scale or other residue left behind thereby curtailing
>size of
>larvae. Is there any validity to this staement. If so, how often
>should
>one change brood chambers. As a follow-on question are frames used for
>honey production suitable for use for brood rearing or should one use
>virgin frames only.
>
>Thanks, Doug Henry, Lockport Manitoba
>