[Stock-diseases of potatoes. Part 3: Peel-diseases]

almacenamiento bacteria champignon colletotrichum enfermedades de las plantas fungi helminthosporium hongos infestation maladie des plantes marchitez meloidogyne chitwoodi nematodos de las plantas olpidium papa peel pelure piel (vegetal) plant diseases plant nematodes plant viruses polyscytalum pomme de terre potatoes rhizoctonia rona scabs spongospora stockage storage streptomyces symptome symptoms tavelure tubercule tubers virus de las plantas wilts