The description doesn't match very well.Those are not bees, those are wasps. I've been fighting ground dwelling wasps in my yard all summer. They are super difficult to kill. In the end I used a shop vac over the hole, left on for hours.
Way too many easily visible nest entrances in a small space, for starters. Also too small, looks like a honeybee, sting hurts a lot (digger wasps have comparatively mild stings, generally), and so forth.
Note that the shop vac idea ( good idea!) will not work for solitary bee colonies - any one nest hole will net you one bee at most. There isn't any "the hole", as there is for yellowjacket or bumblebee ground nests.