Changing a brood frame

[Japey Edge]

When I find brood frames like those below...time to change. Not worried if they are quite old and dark as long as complete. Although the sciences does show that queens prefer to lay in new comb and that bees that develop in older comb that has a smaller cell size are themselves slightly smaller. Whether this has any significance on colony performance is unknown.

What do you do with them Nigel? Use them for bait hives?

[NigelP]

Nope, stick them in the solar wax extractor, get a few grams back.
I don't use bait hives in case I get a swarm of local bees that I will then have to varroa treat and requeen.
More trouble than they are worth around my patch.

[Alfred]

The nbu would have us do annual complete comb changes..
My lot don't mind what they're given with the exception of one inherited comb ( now in the rendering box) that they would not go near.Uniform coaco colour,it was in otherwise perfect condition,no obvious maladies,they just walked past it to get to the next frame.