The queen in one of my overwintered nucs is laying only drones in worker cells. Iíll give her another week and if there is no change Iíll combine with another nuc.
My questions is Ė why? What is the reason for her to become drone layer? This was the best queen last summer, she was laying in beautiful pattern, the nuc made it trough the winter in good condition. But now only drones? I would appreciate any input about what could have caused it?

Thank you.