Sep 28, 2011 #1 branston Chirping 8 Years May 23, 2011 227 4 91 Virginia How often do you dust birds and coop with DE as a preventative measure?
Sep 28, 2011 #2 chi-rn Songster 14 Years Jun 11, 2011 873 6 239 Some info: https://www.backyardchickens.com/forum/viewtopic.php?id=11454