this is robert f stroud aka the bird,an of alcatrac take on control of red mites, wash all equipment in a strong hot solution of lye soap, remove and burn all litter, sprey all cracks and anywhere else they might brees with a good commercial spray reinforced by adding 2 ounces of casor oil and 2 ounces of naphthalene to each quart. the best way to demite a chicken house. is to spray with a power sprayer once each week using a mixture of eight parts kerosene one part engine oil and one part crude carbolic acid. well he did spend 54 years in solitary confinement its a good book though