my first thought is EFB due to the crusty dead larvae in the bottom of the cells. i tried to get the best pictures i can but its pretty tough. out of all the hives in our home apiary the only ones that have this problem are the ones from the nucs we bought from a commercial supplier. they said out of all the customers this year we are the only ones with a problem. the swarms and cutouts we hived this year are doing incredibly well. i didnt catch any hint of a foul smell in any of the suspicious hives.

what should we do ?