Hi all

> After 5-8 years of broodrearing there will be many layers of cocoon left
in
> there.  wax ones we melt them.  plastic ones? how do we rid of cocoons?

If cocoons build up beyond a certain level (whether plastic or wax
foundation) the workers chew away the complete sidewall and rebuild a fresh
one.

Full depth plastic comb obviously cannot be chewed down, but there is no
reason why the cocoon layer cannot be chewed off of the plastic substrate.

Best Regards & 73s... Dave Cushman, G8MZY
Beekeeping & Bee Breeding Website...
http://website.lineone.net/~dave.cushman