In my land asturleonese is thus called copper sulfate, calcanite, blue vitrilum, blue stone that crushed and dissolved in water was sprinkled on the cereal that was used in the sow against fungi especially fog, anublo, blyce or rust (puccinia graminis). It has also been used as a algicide in swimming pools and as a pesticide in bordelés broth in disinfection of vines and other plantations. In my childhood when the pigs were layered in the corral, that blue-green powder was applied that was fastened with two pieces of cane sewn into the wound
