Get a five gallon bucket of hot super bleachy soapy water and sneak up on their nest, evening is best. Pour that down all at once and run!
Dealt yellow jackets and I got swarm stung by those fuckers multiple times. They have multiple holes for entry and ventilation. Plus they'll move the nest.
But I'm talking hornet's here, bald faced. They live in a ball shaped structure that hangs in a tree, or in this case from the eaves of a house. I'll try to remember your method should I discover those other fuckers have stolen ground
Ah sorry, I've seen those but not nearly as much as paper wasps, hornets and wasps (I really like those dark shiny blue ones) of assorted species, fucking bot flies (those sonsabitches) carpenter bees...
I used to get an empty liter soda bottle and cut an opening in it halfway. I'd add soapy water, then string a hunk of meat from the top to hang inside the bottle so it attracted the hornets. They'd fall into the water and drown.
Gross but it worked as well.
(post is archived)