Wife found them yesterday cleaning out a raised bed. They are not at all happy their little home has been disturbed. Fortunately it was me that got stung not her...
Tiny bit of reading I just did implies they only live as a colony for about 8 weeks? Since it is unlikely we could successfully move them would a temporary 'house' get them to calm down? Thinking a spare box and lid, (no bottom) set over them and a bit of straw to make up for the missing top of their nest. Have several swarm traps that already have a round hole entrance.
If they calm down and all flights are directed to a single direction might be able to coexist with them. Make sure to clean the bed during the winter so it will be less attractive to them next year.
Any other ideas or suggestions appreciated.