Which method is effective for dealing with damaged frames affected by wax moths?

Freezing the frames is an effective method for dealing with frames that have been damaged by wax moths. This technique works by exposing the frames to subzero temperatures, which kills the wax moth larvae and any eggs present. Wax moths thrive in warmer conditions, and by freezing the affected frames, you eliminate the pest problem without the need for chemical treatments.

It's important to note that freezing should ideally be done for at least 24 hours to ensure thorough eradication of the pests. After freezing, the frames can be cleaned and properly inspected before being reintroduced to the hive or stored away.

Other methods, while they may have some benefits, are generally less reliable. For instance, using moth crystals can introduce harmful chemicals into the hive environment, which can have negative effects on the bees. Adding brood and bees does not directly address the wax moth issue and may inadvertently spread the problem. Placing frames in an open air shed can provide some ventilation but may not be sufficient to eradicate the wax moths, as they can still survive in that environment.