Originally Posted by
gavin
The key to any operation that encourages bees to draw more comb is the state of the colony. Ted Hooper wrote about 'brood spreading' - shuffling brood nest frames to make an irregular outline that the bees would then try to change to maintain an oval shape. This is during the spring build-up when the colony is struggling to cope (a strong drive to build up yet insufficient bees to draw comb and feed and keep everything warm), and most people who tried it didn't think it was good for the bees.
Later in the year, with lots of young bees in the colony, they will drawn foundation happily. Sticking in a frame of foundation helps a burgeoning colony delay swarm preparations. A late summer colony filling its space with stores and with a lot of recently emerged bees is in a good position to draw worker comb, as long as there is forage or feed.
These are just normal practices, to be used carefully after judging the state of the colony and of its forage. I wouldn't do anything more drastic in UK conditions where colonies are usually less strong and flows less dramatic.
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