Hi all, My flock has mites. Pretty sure they're the northern fowl ones. And they are EVERYWHERE. I've tried DE. It seemed to cut down on the number but they are still crawling all over the place. I cater to some organic leaning clients and I like to stay as chemical-free as possible but I'm about to go nuclear. Thinking of using spinosad garden spray, but not sure if anyone has had any success with it. Also, do you need to do it again in 7 days?