How often do I dust my hen with DE she has mites. She is starting to regrow her fathers and looks like shes a chick!!!! I've been doing it once a week but I'm worried that its not enough.
Since you've been dusting your hen with DE once a week with no effect, it's time to switch to sevin dust. Once you use sevin dust, redust your hen again 7-10 days later. You also have the dust the inside of the coop and nests as well, then repeat again in 7-10 days.