Take off your clothes and continually beat the bush with a stick until the bees/wasps/yellow jackets realize they should find somewhere else to live.

Bengal ant/bug spray.
It's not cheap.
It's a Fogging type spray no oily mess.

Denatured alcohol in a sprayers. Instant results

Cant remember the source for this, possibly the forum, but I sent this to my aunt in WA who had a big yellowjacket problem and it worked well-

Wasp extermination method:
I've tried various commercially available and home made traps. They fill full to capacity in about 24 hours, with hundreds of bugs fighting each other to get in. I've gone out in search of the nests, and in one case rooted out one that was located in a vent in the side of the house. But still, even with all this carnage, we have multitudes of yellowjackets. It got to the point where I couldn't feed our barn cat outside, because they'd swarm his food dish.

Then I discovered the Nuclear Option. The exterminator who came out to kill the nest in our vent left a receipt showing the chemical he used. He said it's the same stuff used in dog and cat flea collars. Not as strong as the typical nerve agent they use. Doesn't kill right away, safe to use in the house (the main consideration in that case). So I did some googling and discovered that while 99.9% of the videos on youtube are concerned with how to trap the stinging bastards, only a fraction of a percent cover the most effective weapon of mass yellowjacket destruction: FIPRONIL.

To save you the time, should you be plagued by these stinging pests, I'll detail the baiting method here, backed up by some scientific papers I found on the net (one in particular from Hawaii, where they are just plain overrun by these critters).

Materials:
12.5oz can of Swanson's white chicken breast meat (scientifically proven to be the most attractive bait)
One vial of PetArmor flea treatment for dogs 45-88lb size, vial is 2.68ml of active ingredient Fipronil 9.8%.
Four paper or plastic dixie cups.
Four small metal cages (you can make from a soup can with 1/2" holes drilled in it or hardware cloth and wood). Spare hamster cage would work fine.

Preparation:
Put entire contents of can of chicken in blender and liquefy, pour back in chicken can.
Add one entire vial of PetArmor to the can, stir with a disposable stick. An old popsicle stick works great.
Pour / divide the bait into the 4 dixie cups and set in cages.
Hang the baited cages on tree branches outside, one cage near each corner of your property.

Results:
Workers stock up on the bait, then return to the nest to feed the inhabitants of the nest. Results in killing all nests within 3/10 mile of the bait station within 12-48hrs. Significant reduction of foragers noted within just 6 hours.

Do not be tempted to increase the dose beyond that specified above. It is vital that the insects bring the poison bait back to their nests, and for that they must remain alive at least long enough to do so.

Will not harm honey bees. Honey bees are not attracted to meat bait, only yellowjackets.

Would be curious to see if anyone's tried this and if it works. PetArmor's pretty expensive per ml but you can buy bulk Fipronil off Amazon in larger quantities. I have heard the EPA recently approved Fipronil for use in combating yellowjackets.

^^^that almost makes me wish I had a Yellow Jacket problem.

We get yellow jacket nests here every year. The stings hurt like hell and I want to kill them all. They like bushes, ground nests. wood piles, and farm machinery that sits idle. I have learned to watch for them and try to do pre-emptive strike on them in the dark when I find their nests. Wasp and hornet killer foam spray does a number on small nests as it sticks to them even as they try to evacuate, but you can never be sure of the size of the nest. We often see the remains of yellow jacket nests that the armadillos dug up during the winter and it is surprising.

Last year we had a HUGE nest develop under our house. It seemed more active than we had seen before so we called an exterminator whose response was "holy shit!". We did some telephoto photography to get a positive ID on what we were dealing with. A specialist came out in a space suit and fogged and fumed them and then removed the nest. It was a dense, waxy nest in layers and we were only seeing a tiny portion of it. He carried out the nest in pieces and there were several buckets full. There were thousands of them in there and if we had sprayed them it would not have penetrated all the layers and our spray can would have been empty long before we were out of pissed off yellow jackets. The point is, if you have yellow jackets watch them for a while to get an idea of what you are dealing with. They seem to be most active mid morning. Small nests can be killed easily, but if you suspect you have a large nest call a professional, for safety and to be sure you got all of them.. The damn things are dangerous

If the are indeed bees, have them relocated.