I don't care what some say about Castor Oil not working with moles. IT WORKS!! Sprayed my lawn about a month ago with a Castor Oil solution. Had moles working in 3 - 4 areas. I got 2 acres and about 700-800 feet of it is against a medium wooded woods. Been going out and walking the edge the past week or so and have 6 - 7 places where it is VERY evident that the moles come out of the woods to the edge of my lawn, make a 90 degree turn and run parallel to it and head back into the woods!!! NO Moles are in my yard. I gotta borrow the digital camera again and get pixs of these. I was having success last year with it as well, but it's interesting this year seeing so many places where the moles refuse to get into the grass. Woo hooooo!!!!! PS - Now if I can just get rid of the crawdad/crawfish mounds/holes.