funny Curval and Red, gee why didnt I think of that:D besides there is no nest, at least not on the outside of the house... these hornets are massed in an area about 3 feet by 3 feet, just a solid mass of hornets...
The vacuum cleaner idea sounds interesting, all I need is a 20 foot extention cause I dont really want to get any closer than that.
I'm considering pulling the van up beside the house and sit inside, roll down the window, spray the hornet spray, then roll the window back up, wait for them to settle down and then repeat. I might try using the hose and spray them off the house with water but I'm not crazy about the vision of 300 hornets flying around pissed off... I do have a small liquid spray tank that you pump up, I could put some super concentrated bug killer in that, it can be set for stream or wide spray...
I'll take a picture of 'em when I get home