I hope someone can help me. Below is a picture(taken in June) of the raised bed I'm using(belongs to apt bldg). The orange circle is the opening to a yellow jacket nest that I've been trying to deal with for about a month. I've used two cans of spray, one being a foam, with no obvious results. I've found no other access to the nest. It must be deep. The guard YJ's have been harrassing me of late, when I'm trying to work. I'm not allergic, but I've been stung in the past and it's not something I want to experience again. They're right below my zucchini plants. I think they can feel me walking around in the bed, because they come after me even when I'm at the opposite end. I tried putting a container of jam laced with boric acid out today(works for ants), but they investigated then left it alone. I know the nest will die this winter, but it's only August! I was planning on sowing a few things for a fall harvest, but now I wonder if I should chance it. I'm so frustrated! Any advice is appreciated.