I think you all posted your DE moats while i wrote that ...
So do these mites then get over the coop? Do you sprinkle DE or spray permethrin in the run and coop? I haven't had to deal with them yet
I have something else in one of my kinds of feed,.though
If you can tell that it's infested the first or second day, Maybe a staging area would help. You bring the feed home, put it in the staging area (not carpeted, not inside) and open the bag. After you feel it's a good bag, it comes in to your regular storage area.
If this is possible to do...