I found some capped brood with holes in them on one single frame in one of my Iberian bee hives. Unfortunately I have no pictures but the holes were not perfectly round and were spread out over the brood. There is no foul smell and the rest of the frame seems to be normal so I don’t think it is AFB. I haven’t done a mite count yet but I haven’t seen one with my naked eye yet. I have never had any mites in my hives so far. Last week I did add some Apivar strips with “Amitraz” as preventive measure. The larvae seem to be positioned correctly and look healthy and the hive is clean. It is just that one frame that has some holes. Do I have to worry or am I just paranoid?
My suggestion would be to post a photo, to show us what you’re talking about.