It's an interesting point Adam. I'd tend to counter by saying look at the inspections you did where you disrupted the queen pheromones etc and they hadn't swarmed by the next inspection.
I tend to regard it as a seasonal/weather issue with the hives that do decide to swarm all deciding to do so almost at the same time (usually!).
I tend to regard it as a seasonal/weather issue with the hives that do decide to swarm all deciding to do so almost at the same time (usually!).