i'm not a biodynamic beekeeper, but i am famillar with the "movement",
and i do not use foundation.

the reason, i beleive, you see only drone brood in an empty frame is
because the bees will naturally produce about 15% drone comb.  using
foundation (and culling excess) makes this more difficult, and when
faced with one empty frame, they will tend produce drone cells.  this 
is
where most people give up the idea, assuming that the bees will only
produce drone comb if left to their own devices.  move that first comb
towards the sides, and add another frame...when the bees have the 
drone
comb they want, they will draw worker comb.  this may be "too much 
drone
comb" for some beekeepers, but the bees obviously don't agree :)

deknow

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