Wasp Issues

You may have to click on the picture to get a better look but we have been infested with wasps outside in our bush. Eric brought home some mega wasp spray from work to take care of these suckers and it kills them immediately and even causes the larvae to drop from the nest. After spraying the huge nest in the bush (I will post pictures of the nest after Eric takes it out tonight) hundreds of wasps started falling from the bush. I took this picture but it doesn't show the complete amount, it was unbelievable see that many in one place. We have had problems with people getting stung who come to visit, they have been everywhere.