Our chicken had a strong mite problem incl serene springs (back Been stripped bare). We have now several times the barn and the outdoor area which borders the stable entrance, powdered thick and behold ?! The feathers came back, the combs were again clean and bright red and it seems to be over. Previously tried sprays did not help. We powders now but prophylactically in three to four weeks intervals on. In order us something does not happen.