if it were truely my situation and i wanted to DIY it… I’d probably buy some dry ice and pack it in dry ice for a few hours…to make sure all the bees are at subzero (-109°F) temperatures. Being mud…you’ll have to chip away it it to remove it all. Once you open it up though…you’ve gotta go balls out, there’s no going back.
having them as cold as possible will buy you the most time since its likely you wont be able to reach them all with the hole/spray technique.
then when the wasps come out…punch them in the FACE!
srsly though…i’d call a pro. If it were a bit smaller, i would try and take care of it myself, but something that size…i just wouldn’t trust myself doing anything.
how warm is it where the next is? tap the nest and see if you hear any noise coming from it, if no noise, beat it with a bat then pull it out. if any come out, have bug killer in hand ready to spray. lol please post pictures of what ever is being done. make sure the pictures are taken when this is going on so you get the best pictures as possible
The video will be rolling and pics will be taken.
My brother in law said put a shell of great stuff foam spray all over it…then leave it…they will be trapped
HAHA
I bet you could poke a hole in it, stick a shop vac in there and suck a bunch out. They’re pretty much out of it this time of year. If they did wake up and come out I don’t think they would be aggressive.