I don't know a whole lot about peanut farming other than that peanuts develop underground but I wonder if it's at all practical, for next year, to put some sort of wiring underneath and around the field. I imagine it would be a lot of work not to mention expensive, but that's all I can come up with without having to kill the ground squirrels.
Good luck with your crop.
[was Homegirl] Love to be home . . . thus the screen name. Joined 2003.