Anybody know what triggers the hive to start ejecting drones? I had a couple of queens (3) not get mated and am trying it again. I have 6 QC that should emerge on September 1. I still have drones (even in my nucs). Is it day length, weather, frost? We donít get rain here for the summer and not much is blooming other than queens Annís lace and some dandelions. Even the clover seems dead for the year. Never tried it this late so I never paid attention before.