I'm gonna try to be short and clear, i am noticing 3 problems regarding queencells, and 1 regarding both queencells and mating nucs, but they migth be related to each other, so guys let me know what you think.
1.- on the 10 day after grafting, when i'm about to distribute all my queencells to my mating nucs, i'm finding that a lot of my queencells have a dead larva on the lower part of the cell, perhaps 25 out of 50, and i wasn't having this problem at all last year. What's going on here?
2.- After eliminating all non viable cells, and distributing what is left to the nucs, on a sunny nice day, keeping my cells in a cooler, i'm watching 3 or 4 days later tha some of those "viable" cells are not hatching, after checking what's inside the cell, i find an almost well devleloped dead queen. What's going on here??
3.-21 days after introducing my queencells to my mating nucs, and when i'm suposed to be harvesting my queen, i'm finding virgin queens reared by the mating nuc, which means they destroyed my queencell which by the way i introduce 1 day after harvesting the queen and with a jzbz cell protector, or once my queen emerged, they killed it, or probably she didn't emerged, and they just cleaned the wax left on the cell. What's going on??
Is everything related?? is it a disease problem?
I'm discarding human mistakes by taking extra precautions on key points, but i'm not perfect and i migth be screwing at some point, any ideas???