Many years ago we had a hornets nest in our shed. There was a galvanized garbage can that they seemed to like and built the nest in there. I carefully carried it out then went and got some gas and some matches POOF no more hornets.
Getting close to winter is the worst time for hornets. I can handle honey bees we have lots around here because we have a bee farm a few blocks from here and they only sting if they have no other choice, but hornets bite just because they can.