@brunchwithbabs: Here is the secret to escaping the yellow jackets!! Wasps' food is running out this time of year - AND their appetites are increasing because it is time for the Queen to start laying her eggs. They are after protein at this time of year. Open a couple of cans of tuna (in water) and place them in the yard away from the party - about 30-50 feet from the party hub. Put them up high if you have pets. The wasps will be drawn to the protein and send pheromones out to the other wasps, telling them that an excellent food source is available and come join the tuna party