Hi All
I'm new to chicken keeping, but the breeder where I got my young chicks from swears by the original creosote route to keep the mites out and to eradicate. I am a great believer of the original creosote so that is the route I have gone down. Coated inside and out of the full shed and the ends of all perches.
Now as a money saving tip from my years in waste oil industry, the original creosote is made up of waste engine oil, with additives, if you purchase 1 gallon of the original from a fence supplier you can safely add 2 gallon of any waste engine oil to it and still keep a safe consistency, this dries same as any creosote. and is a lot cheaper than some of the other remedies i have seen, especially burning a full coop.
Hope this helps a little.
regards
Keith aka mannimel