Varroa visible in frozen drone comb?

[chickenman]

Thought I would try drone comb along w/ the screened bottom bomb. Froze a frame of capped comb and pulled out several (10-12) pupae in various stages of development looking for varroa. Didn't see any. Should I be able to see any evidence of mites, or are they in a stage of development not visible to naked eye. Or do I not have a mite problem/ pulled out too few pupae? The developing pupae all looked normal to me. I have not put a sticky board under my screened BB.

[AR Beekeeper]

Often the varroa stick to the sides of the cells and do not come out with the pupa. Remove a 4 inch square area, put some newspaper on a table and tap the edge of the top bar on the table. This will release any varroa stuck in the cells.

[chickenman]

Thanks for the good advice. That frame is back in the hive but I will definitely try your suggestion next time.