Hi there I have been loosing my younger hens left and right. I finally found out why... Mites!! So I gave my hens a dust bath in wood ash. Then I kicked them out and cleaned their coop. I sprayed everything with water, vinegar, and oregano oil. Then in the neat boxes I lightly put some Hi-Yeild pet, garden, and livestock dust. Put hay over it. And then dusted the roost area. Do any of you know if there is egg withdrawal for this product??