[Chicago_ks]

I crushed a queen long enough ago that te hive went laying worker. I shook the bees out and put the brood box in the freezer. How long does it need to stay there before I can put the frames on another hive?
ks

 

[MichiganMike]

I use two days minimum, I not only want to kill the brood but also wax moth and beetle eggs or larva. When laying worker hives dwindle they are not able to protect the hive as well.

 

[Michael Bush]

I never freeze them. I just give them to another hive. But if you really want to 24 hours should do.