Went into my hive Saterday. Opened drone brood no sign of varroa in any that I opened (75-100 cells)I using the FGMO fogging and cords. Seen lots of bees My queen has moved up into the medium supper I'm using as a second hive body. The lower brood box was full of brood about 2 weeks ago. Know the medium super was full of brood. Will the queen go back down into the lower brood box? The lower brood box was either hatching out or already hatched out. Several frames were empty.