So is the best this to do, is to kill that colony? What do you look for to know its a wasp?
They seem to have a very bee-like behavior.
Yep, they're attracted to sweets, they're a colonial organism, "act" quite a bit like bees, they're closely related.
Some differences include:
Bees tend to be fuzzy, wasps are smooth.
Bees have a blunt abdomen (tail) Wasps are more pointed.
Bees are more compact in body style, wasps are longer, some species have definite "waist"
Bees carry pollen, wasps don't.
Bees sting only once, wasps sting multiple times each.
And, as you can tell from the previous posts:
Beekeepers LOVE bees, Beekeepers (mostly) HATE wasps!