3.0 PRACTICE OF BEEKEEPING
The candidate will be:
3.23 aware of the need for regular brood comb replacement.
NOTES
Comb in a hive gets darker in colour over time as it builds up with remains of old cocoons, larval faeces, propolis and so on. Diseases, pathogens and chemical residues can be harboured on or in the comb. The longer the comb stays in the hive, the more likely it is that these undesirable properties will occur, and the more chance they will have have to build up in strength.
Old frames should be replaced with fresh foundation or newly drawn comb. Move old frames gradually to the side of the brood box, away from the brood raising area so that the brood nest is not disturbed when the frames are taken out.
A method for replacing an entire brood box with new comb is the Bailey Comb Exchange:- https://www.google.com/search?q=bailey+comb+exchange