maladie (2) Tissues (2) Examinations (2) Diseases--Causes and theories of causation (2) Losses (2) Etiology (2) maladie (2) virus (1) amidon (1) espèce (1) racine (1) pathologie (1) agent pathogène (1) microscopie (1) feuille (1) aliment (1) investigation (1) culture (1) mosaïque (1) ordre (1) Food (1) Colonies (1) Causes (1) Area (1) Witches (1) Microscopy (1) Canna (1) Area (1) Yellow (1) Symptoms (1)