I can't say robbing as an issue with my colonies all very heavy and guards were soon at the door to see off visitors even me , no wasp issues barring the odd one picking up bits off the ground. Though possible they may have visited colonies elsewhere locally.
Mild autumn/early winter although I haven't looked since early Oct there was still good brood up to 5 frames going in to autumn treatment so simply down to plenty of brood and mites proliferating, or maybe my autumn vaping wasn't as efficient as I hoped, should have been though with 4 vapes every 6th day.
Another vape on Saturday and one the following Thursday if counts are still high.
Nuc was 4 frames brood and two solid stores I put on a 6 frame half super for the ivy flow which they filled, with a polystyrene over coat on the exterior.
Mild autumn/early winter although I haven't looked since early Oct there was still good brood up to 5 frames going in to autumn treatment so simply down to plenty of brood and mites proliferating, or maybe my autumn vaping wasn't as efficient as I hoped, should have been though with 4 vapes every 6th day.
Another vape on Saturday and one the following Thursday if counts are still high.
Nuc was 4 frames brood and two solid stores I put on a 6 frame half super for the ivy flow which they filled, with a polystyrene over coat on the exterior.