Holy Crap!!! Where Did You Come From?

ocdart your nest went undetected for sometime.. Most likely that one was started in the spring by a worker or the queen herself. Once a decent size is made she makes her workers and they take care of the nest... Looks to me that nest was on its 2nd cycle or workers. !!!!

We have these Yellow Jacket Wasps up here in Ontario too... They just love to build nests where the kids play.

I spray raid in my shop vac then go to the nest and suck it up !!!! That has worked for me now for many years... lol

Don't see a lot of inground nests here ...

If you look these wasps up on the net , you will find an interesting read on these creatures