Smoke 'em out
We used to stick a drinking straw in the ground and exhale a little reefer at them. Not only do you get a mass exodus of antage from the ground but you normally get some of the bigger guys come running up bearing the queen. I guess they believe there's a fire and they need to save her. One well targeted stamp later and no more queen = no more nest. If you have multiple nests then buy yourself a nine bar and get puffin'