I have read several threads about PF120s here on the forums. Most people seem very pleased with the results from using these frames, so I bought quite a few this spring to save me some assembly time.
About six weeks ago, I put an 8-frame medium box full of PF120s on top of what appears to be a strong double deep hive that was about just about full of drawn comb. We have had great warm weather and lots of trees and flowers in bloom throughout the last six weeks, but the bees still have not drawn out a single one of the PF120s. The box with the PF120s is FULL of bees, they just haven't built any comb on the frames yet.
I had hoped that they would have built out this entire box by now, but I am a pretty new at this so maybe my expectations are too high...
So, ideas? Any suggestions or comments would be appreciated.