Viruses I: General: Major virus groups Viruses II: Minor virus groups and virus complexes Viruses III: Ungrouped viruses and virus complexes Viruses IV: Diseases assumed to be due to viruses Mollicutes and rickettsia-like organisms Bacteria I: Pseudomonas and Xanthomonas Bacteria II: Agrobacterium, Corynebacterium, Erwinia and other bacteria Oomycetes Chytridiomycetes, Plasmodiophoromycetes, Zygomycetes Ascomycetes I: General: Endomycetales, Taphrinales, Eurotiales, Erysiphales Ascomycetes II: Clavicipitales, Hypocreales Ascomycetes III: Ophiostomatales, Diaporthales, Polystigmatales, Sphaeriales, Diatrypales, Coryneliales Ascomycetes IV: Dothideales Ascomycetes V: Rhytismatales, Caliciales, Pezizales, Caliciales Helotiales Basidiomycetes I: Ustilaginales Basidiomycetes II: Uredinales Basidiomycetes III: Hymenomycetes Pathogen index Host index