Meaning of grafiosis by Felipe Lorenzo del Río

Grapho Greek: write, draw. It is the Dutch disease of Elm, in ready negrillo, caused by a fungus, hophiostoma ulmi, which obstructs the vessels of wood to prevent the passage of water and mineral salts and causing his death. Dutch poque is called was Dutch Botany Marie Beatrice Schwarz that identified the fungus that is spread by beetles of the genus Scolytus and is called Dutch elm disease because to the skin of the tree are observed irregular drawings inside the bark and the wood surface. Since the beginning of the 20th century developing has gone all over the world. In the 1980s came to Spain. A technique against Dutch elm disease that is trying to is the hybridization of Elm ulmus pumila with, which is much more resistant to the disease.