Hi Bianca, I don’t understand that strategy at all. I understand freezing the larvae & beetles to kill them after a slime-out, but not freezing & sealing the frames as general hive maintenance.
My main strategy is to keep every brood frame with a very high percentage of worker comb, while making sure there are no large areas of drone comb anywhere in the brood box. The prime reason being that drones are not defenders, so therefore any concentrations of drones anywhere in the hive will be an invitation for beetles to lay eggs within the area of the drone concentration.
Other strategies include making sure that any frames containing brood or pollen have a good covering of bees on them, in order to make sure that the bees will prevent the beetles from laying eggs in either the brood or pollen. Also make sure that no bees get trapped between combs during an inspection. Avoid honey spills & damaging brood. Lastly make sure beetles can’t breed in anything left outside the hive. Oh & frequently check & empty flow trays & sliders.