Three big bomb-shaped soda pop bottles (these held tonic water), with their heads cut off and inverted create the perfect wasp trap. I chose to experiment this year with a plum syrup that smells so yummy and is so sweet I doubt the evil yellow ones will be able to resist it. No one keeps bees in my neighborhood, and they are not native to my part of Alaska so I won't be killing any innocent honeybees. Just yellowjackets and hornets.
Last year these traps worked very well as I had no wasp nests near the house, in the shed or on my eaves. But we had a weird year last year. Something killed off the wasps early in the season, and we had a blessed few of the buggers around. The year before it was like some kind of horror film. When we stepped outside there were yellowjackets every four inches on the ground, just buzzing, just waiting for you to make a false move... I've never seen it so bad. I hope I never see it that bad again! They came into the place I was renting at the time. My landlord got very angry when I told him they were in the walls. He didn't want to deal with it. He did, finally, but not until my bathroom had become too scary to use... Scary Bathroom
A five gallon bucket filled with soapy water, a stick across it with a bit of bacon on a string, and you've got the Industrial Hornet Trap. I'll be putting one of those out there soon, too, as soon as I score a bucket.
Since all honey bees have to be imported, all pollination is done by other insects, among them yellowjackets and wasps. To be fair, they do eat bugs that eat your garden. And of course they scavenge, as well. However at present I have no garden, as I haven't lived her long enough to build up any soil (I start that process this year, with peat and so on), and these wasps proliferate like you wouldn't believe. Seriously, you wouldn't. Not unless you've been up here and have seen the insanity of a bad wasp year. We had people DIE year before last from getting too many wasp stings. Not that they got swarmed, but they would get five or six in a week. Turns out your body can't handle that. The eighth (or so) sting in a week can send you into anaphylactic shock, depending on your immune system. And of course this is the land of the Tough Guy. A couple men died because they didn't go to the hospital. So all I have to say to those hornets is DIE DIE DIE!