I currently have one bale of alfalfa hay sitting in an old stall. The stall is dirt, then bedding, then old hay, then my bale. We found a bunch of ants in there today. I rolled the hay over away from where it had been, but I'm not sure what else to do. I also wanted to store maybe 20 bales of hay in there, but maybe I shouldn't now that there are ants? If I put in pallets would that get rid of them?