How effective is this product against mites?. Has anybody had good results?
MannaPro Poultry Protector
I have not used it, but if you have an infestation I would urge you to use some permethrin products, either the garden dust or the 10% spray. TSC and other farm stores carry several brands. The coop also has to be treated, and re-treatment of chickens may be needed every 7 days a few times. Some use Sevin dust also. Here is some info: