How Can I Get Rid of Ground Wasps Without Pesticides?

http://www.motherearthnews.com/organic-gardening/yellow-jacket-wasps-z10b0blon.aspx

How can I get rid of ground wasps without pesticides?

Thanks for asking and we have a very unique response, penned by our gardening expert, Barbara Pleasant. Barbara has been using this old-fashioned method for years and it works!

First locate the hole in the ground where the nest is. Then, get a clear plastic or glass cake cover — yup, a cake cover — and read Yellow Jackets vs. Cake Cover: A Success Story.

— Heidi Hunt, assistant editor