One of my neighbors had the same thing happen in his master bedroom. Heard noise in the wall, tapped it & his hand went through the wall. He went through 3 different exterminators as he has several wall infested with yellow jackets. And then a was infestation on the opposite end of the house. I felt so bad for him as he is currently unemployed.

They, indeed, are invasive little devils.

wow, how awful! good luck and hope the problem is soon GONE

This might be called the year of the wasp....I had to knock down/spray to kill two nests in and on my pickup truck. One was inside the tail gate and another was in a small nook made by the tool chest and side of the truck...now when I go out to drive the truck I have to make a circuit to see I they have found another place to build their nest. These are paper wasps and I have discovered they can build a nest in very short time. Clever buggers, but I have been stung and it is not nice; so with respect I have a can of death that will spray up to a ten foot distance. Good by and go nest elsewhere....though not in the house thank you very much.

My friend was stung a couple of days ago by yellow jackets, for the 6th time this summer, so I spent yesterday trying to locate the nest. I think I found at least one of their hide outs, but sure there must be more seeing as she does have a LOT of junk in her backyard. When it gets cool, we are going to try cleaning her backyard. I just hope that her son is healthy enough by then to help. Right now he is dealing with cancer. With each sting, she seems to have a worse reaction and I'm afraid that she will have a more severe reaction eventually. I have encouraged her to talk with her doctor about having an epi-pen available if it does happen.
Hope you get your visitors taken care of real soon. Good luck.

My question would be....when you turn the vacuum off won't they be able to fly back out through the hose? And how do you empty it???

It killed them. I use disposible bags.

Hope theyre gone soon and you can get back into your home.

In the meantime .... http://www.theguardian.com/environme...oom-winchester

I cannot for the life of me understand why you wouldnt look in a room, any room within your house for that long!

Hope it gets resolved quickly. I had them in my bedroom wall! I could hear them buzzing and when I knocked on it they went crazy! Exterminator had to open up the drywall and got rid of them for me. Good luck.

My home has been invaded by fire ants. They are looking for water, wish this drought would break already!!