Questions for Solomon Parker and others doing Expansion Model Beekeeping:
1. Do you have any control over the genetics contributed to your stock by the drones your queens mated with?
2. Do you have aggressive genetics in the nearby feral population and how do you know or suspect?
3. If a queen accepts a "wrong" drone -or several-, how long before the disposition of the hive is unacceptable?
4. How often do you inspect any individual hive to sense its disposition?
I observed feral bees in my yard long before I tried keeping a hive. Their steady appearance even in drought years was one of the reasons I considered treatment-free to be workable here. The feral bees are not obviously aggressive, but I only see them while foraging, and aggressive genetics are possible in central Texas.
My purchased bees are BeeWeavers, well-adapted to this climate. Visually they seem to be smaller and darker than the feral bees. They have not been aggressive.