Checklist of Organisms Causing Tree Diseases


Scientific binomial Synonym Common name or symptom

A
Acremonium diospyri (Crand.) W. Grams Cephalosporium diospyri Crand. persimmon wilt
Actinopelte dryina (Sacc.) Hoehn. Actinopelte leaf spot
Aecidium aesculi Ell. et Kellelm. leaf spot
Agrobacterium tumefaciens crown gall
   (E.F. Smith et Town.) Conn.
Alternaria tenuis Nees Alternaria leaf and stem blight
Alerodiscus amorphus (Pers.: Fr.) Rab. canker
Amphichaeta grevilleae Loos silk-oak leaf spot
Anthostoma oreodaphnes foliage discoloration
Apiosporium piniphilum Fckl. sooty mold
Apiosporina morbosa (Schw.) von Arx Dibotyron morbosum Th. et Syd. black knot
Arceuthobium abietinum Engelm. ex Munz fir dwarf mistletoe
Arceuthobium abietinum Engelm. ex Munz red fir dwarf mistletoe
   f. sp. magnificae Hawksw. et Wiens.
Arceuthobium abietinum Engelm. ex Munz white fir dwarf mistletoe
   f. sp. concoloris Hawksw. et Wiens.
Arceuthobium americanum Nutt. ex Engelm. lodgepole pine dwarf mistletoe
Arceuthobium californicum Hawksw. et Wiens sugar pine dwarf mistletoe
Arceuthobium campylopodium Engelm. western dwarf mistletoe
Arceuthobium cyanocarpum Coulter et Nelson limber pine dwarf mistletoe
Arceuthobium divaricatum Engelm. pinyon dwarf mistletoe
Arceuthobium douglasii Engelm. Douglas-fir dwarf mistletoe
Arceuthobium laricis (Piper) St. Johns larch dwarf mistletoe
Arceuthobium microcarpum (Engelm.) western spruce dwarf mistletoe
   Hawkins et Wiens
Arceuthobium occidentale Engelm. digger pine dwarf mistletoe
Arceuthobium pusillum Pk. eastern dwarf mistletoe
Arceuthobium tsugense (Rosend.) G.N. Jones hemlock dwarf mistletoe
Arceuthobium vaginatum (Willd.) Presl subsp. southwestern dwarf mistletoe
   cryptopodum (Engelm.) Hawksw. et Wiens
Arceuthobium vaginatum (Willd.) Presl subsp. southwestern dwarf mistletoe
   vaginatum
Armillaria mellea (Vahl.: Fr.) Kumm. Armillaria mellea (Vahl.: Fr.) Karst. shoestring root rot
Armillaria ostoyae (Romagn.) Herink root disease
Ascochyta cornicola Sacc. Ascochyta leaf blight
Astraeus pteridis (Shear) Zeller earth star
Atropellis pinicola Zell. et Good. Atropellis canker
Atropellis piniphila (Weir) Lohm. et Cash branch canker
Atropellis tingens Lohm. et Cash stem canker
Aureobasidium pullulans (de B.) Arn. Pullularia pullulans (de B.) Berkh. hemlock seed mold
B
Bifusella linearis (Pk.) Hoehn needle cast
Bifusella saccata (Darker) Darker needle cast
Boletellus zelleri (Murr.) Sing. mycorrhizal symbiont
Botryodiplodia theobromae Pat. Botryodiplodia canker
Botryosphaeria dothidea (Moug.: Fr.) madrone canker
   Ces. et deNot
Botryosphaeria ribis (Tode: Fr.) Gross et Dug. canker & trunk lesion
Botrytis cinerea Pers.: Fr. Botrytis petal blight
C
Calonectria crotalariae (Loos) Bell et Sobers koa crown rot
Calonectria thea Loos koa shoot blight
Capnodium pini Berk. et Curt. sooty mold
Cenangium furruginosum Fr. Cenangium limb canker
Cenococcum graniforme (Sow.) Ferd. et Winge mycorrhizal symbiont
Cephalosporium pallidium Verrall wood stain fungus
Ceratocytis ambrosia Bak. Ceratocytis canker
Ceratocytis cana (Muench) C. Mor. Ceratocytis canker
Ceratocytis coerulescens (Muench) Bak. sapstreak
Ceratocytis crassivaginata H.D. Griffin Ceratocytis canker
Ceratocytis fagacearum (Bretz) Hunt oak wilt
Ceratocytis fimbriata Ell. et Halst. Ceratocytis canker
Ceratocytis moniliformis (Hedg.) C. Mor. Ceratocytis canker
Ceratocytis piceae (Muench) Bak. Ceratocytis canker
Ceratocytis pluriannulata (Hedg.) C. Mor. sapwood stain
Ceratocytis serpens (Goid.) C. Mor. Ceratocytis canker
Ceratocytis tremul-aurea Davidson et Hinds Ceratocytis canker
Ceratocytis ulmi (Buism.) C. Mor. Dutch elm disease
Cercospora aesculina Ell. et Kellerm. leaf spot
Cercospora circumcissa Sacc. leaf spot
Cercospora cornicola Tr. et Earle dogwood leaf spot
Cercospora halstedii Ell. et Ev. leaf blotch
Cercospora maclurae Ell. et Ev. leaf spot
Cercospora microsora Sacc. basswood leaf spot
Cercospora pulvinula Cke. et Ell. holly leaf spot
Cercospora sequoiae Ell. et Ev. foliage blight
Cercospora spegazzinii Sacc. leaf spot
Cercosporella celtidis (Ell. et Kellerm.) J.J. Davis leaf spot
Cerotelium fici (Butl.) Arth. leaf spot
Ceuthocarpum conflictum (Cke.) Berl. leaf spot
Chlorogenus robiniae Holmes witches' broom virus
Chrysomyxa arctostaphyli Diet. yellow witches' broom
Chrysomyxa chiogenis Arth. needle rust
Chrysomyxa empetri Pers. needle rust
Chrysomyxa ilicina (Arth.) Arth. holly rust
Chrysomyxa ledi de B. needle rust
Chrysomyxa ledicola Lagh. spruce needle rust
Chrysomyxa pirolata Wint. spruce cone rust
Chrysomyxa weirii Jacks. needle rust
Chrysomyxa woroninii Tranz. bud rust
Ciboria acerina Whetz. et Buchew. maple flower blight
Cladosporium effusum (Wint.) Dem. pecan scab
Cladosporium humile J.J. Davis leaf spot
Climacocystis borealis (Fr.) Kotl. et Pouz. Polyporus borealis Fr. heart rot
Climacodon septentrionalis (Fr.) Karst. Hydnum septentrionalis Fr. white heart rot
Clitocybe tabescens (Scop.: Fr.) Bres. Armillaria tabescens (Scop.: Fr.) Bres. mushroom root rot
Coccomyces hiemalis Higg. cherry leaf spot
Coccomyces lutescens Higg. cherry leaf spot
Coleosporium asterum (Diet.) Syd. Coleosporium solidaginis (Schw.) Thum. needle rust
Coleosporium campanulae (Pers.) Lev. needle rust
Coleosporium crowellii Cumm. needle rust
Coleosporium helianthi (Schw.) Arth. needle rust
Coleosporium jonesii (Pk.) Arth. needle rust
Coleosporium madiae Cke. tarweed rust
Colletotrichum gloeosporioides Penz. leaf spot
Collybia velutipes (Fr.) Kumm. Flammulina velutipes (Fr.) Karst. heart rot
Coniophora corrugis Burt sapwood and heartwood rot
Coniophora olivacea (Fr.) Karst. Coniophorella olivacea (Fr.) Karst. root and butt rot
Coniophora puteana (Schum.: Fr.) Karst. Coniophorella puteana Schum.: Fr. root and butt rot
Conophilis americana (L.) Wallr. Coniophora cerebella (Pers.) Pers. root rot, squaw root
Conothyrium truncisedum Vestergr. leaf spot
Coprinus atramentarius (Bull: Fr.) Fr. root rot
Corticium expallense Bres. Phlebia expallense (Bres.) Parm. decay fungus
Corticium salmonicolor Berk. et Br. Phanerochaete salmonicolor (Berk. et dieback
   Br.) Jülich
Corynebacterium ilicis Mandel, Guba et Litsky leaf and twig blight
Coryneum carpophyllum (Lev.) Jauch. leaf spot
Criconemoides quadricornis (Kirhanova) Raski ring nematode
Cristulariella depraedens (Cke.) Hoehn. leaf spot
Cristulariella pyramidalis Wat. et Marsh. target leaf spot
Cronartium coleosporioides (Diet. et Holw.) Arth. pine stem rust
Cronartium comandrae Pk. Comandra blister rust
Cronartium comptoniae Arth. sweetfern rust
Cronartium occidentale Hedgc., Bethel et Hunt pinyon blister rust
Cronartium quercuum (Berk.) Miy. ex Shirai Cronartium fusiforme Hedgc. et Hunt fusiform rust
   f. sp. fusiforme Burds. et Snow
Cronartium quercuum (Berk.) Miy. ex Shirai Cronartium quercuum (Berk.) Miy. ex eastern gall rust
   Shirai f. sp. quercuum
Cronartium ribicola Fischer white pine blister rust
Cryphonectria cubensis (Bruner) Hodges Diaporthe cubensis Bruner eucalyptus canker
Cryphonectria parasitica (Murr.) Barr Endothia parasitica (Murr.) chestnut blight
   P.J. et H.W. And.
Cryptoshpaeria populina (Pers.: Fr.) Sacc. Cryptosphaeria canker
Cryptosporium pinicola Lind. stem and branch canker
Cryptostroma corticale (Ell. et Ev.) Greg. et Wall. sooty bark
Cucurbitaria staphula Dearn. ex Arnold et Russell rough, corky bark
Cylindrocarpon cylindroides Wollenw. stem and branch canker
Cylindrocladium floridanum Sob. et Seymour Cylindrocladium root rot
Cylindrocladium scoparium Morg. Cylindrocladium root rot
Cylindrosporium californicum Earle leaf spot
Cylindrosporium defoliatum Heald et Wolf leaf spot
Cylindrosporium juglandis Wolf leaf spot
Cylindrosporium fraxini (Ell. et Kellerm.) Ell. et Ev. leaf spot
Cytophoma pruinosa (Fr.) Hoehn. ash canker
Cytospora abietis Sacc. stem and branch canker
Cytospora ambiens Sacc. twig fungus
Cytospora chrysosperma Pers.: Fr. Cytospora canker
Cytospora leucostoma Sacc. canker
Cytospora tumulosa Ell. et Ev. branch saprophyte
Cytosporina ludibunda Sacc. elm wilt and dieback
D
Daedalea ambigua Berk. Daedalea elegans Spring.: Fr. heart rot
Daedalea juniperina Murr. Antrodia juniperina (Man.) Niem et Ryv. heart rot
Daedalea quercina L.: Fr. heart rot
Daedalea unicolor (Bull.: Fr.) Murr. Cerrena unicolor (Bull.: Fr.) Murr. canker rot
Dasyscypha agassizii (Berk. et Curt.) Sacc. saprophyte on bark
Dasyscypha arida (Philli.) Sacc. saprophyte on bark
Dasyscypha pini Hahn et Ayers saprophyte on bark
Dasyscypha willkommii (Hart.) Rehm European larch canker
Davisomycella ampla (Dav.) Darke needle cast
Diaporthe alleghaniensis R.H. Arnold black sunken canker and shoot blight
Dichomitus squalens (Karst.) Reid Polyporus anceps Pk. western root rot
Didymascella tetramicrospora Pant. et Darker leaf blight
Didymascella thujina (Durand) Maine seedling and foliage blight
Didymosphaeria oregonensis Good. alder stem and branch canker
Dimerium juniperi Dearn. smudge mold
Dimerosporium tsugae Dearn. sooty mold of hemlock
Diplodia longispora Cke. et Ell. twig blight
Diplodia pinea (Desm.) Kickx Sphaeropsis sapinea (Fr.: Fr.) Diplodia tip blight
   Dyko et Sutton
Diplodia taxi (Sowerby) deNot stem canker
Diplodia tumefaciens (Shear) Zalasky rough, corky bark
Discula quercina (Westd.) v. Arx anthracnose
Dothichiza populea Sacc. et Briard. Dothichiza canker
Dothiorella quercina (Cke. et Ell.) Sacc. Dothiorella canker
Dothiorella ulmi Verr. et May elm dieback
Dothistroma pini Hulb. Dothistroma needle blight
E
Echinodontium taxodii (Lentz et McKay) Gross Stereum taxodii Lentz et McKay pecky cypress pocket rot
Echinodontium tinctorium (Ell. et Ev.) Ell. et Ev. Indian paint fungus
Elaphomyces granulatus Fr. mycorrhizal symbiont
Elsinoe corni Jenk. et Bitan. dogwood leaf spot
Elsinoe quercus-falcatae J. Mill. spot anthracnose
Elsinoe randii Jenk. et Bitan pecan spot anthracnose
Eltyroderma deformans (Weir) Darker needle cast
Encoeliopsis laricina (Ettl.) Groves larch shoot blight
Endocronartium harknessii (J.P. Moore) Y. Hirat Peridermium harknessii J.P. Moore western gall rust
Endoraceium acaciae C.S. Hodges et D.E. Gardner rust fungus
Endoraceium hawaiiense C.S. Hodges et rust fungus
   D.E. Gardner
Endothia gyrosa (Schw.: Fr.) Fr. pin oak blight
Endothia havaensis Bruner Cryphonectria havanensis (Bruner) Barr canker disease
Epifagus virginiana (L.) Bart. beech drops
Erwinia nimipressuralis Cart. elm wetwood
Erysiphe cichoracearum DC. powdery mildew
Eutypella parasitica Davidson et Lorenz Eutypella canker
F
Fabrella tsugae (Farl.) Kirschst. Didymascella tsugae (Farl.) Maire hemlock needle blight
Fomes fomentarius (L.: Fr.) Kickx. trunk rot
Fomes geotropus Cke. heart rot
Fomes nobilissimus (Cke.) Lowe trunk rot
Fomes sclerodermeus (Lev.) Cke. Fomes marmoratus (Berk. et Curt.) Cke. white heart rot
Fomes subroseus Weir Fomitopsis cajanden (Karst.) Kotl. et heart rot
   Pouz.; Fomes cajanderi Karst.
Fomitopsis cajanderi (Karst.) Kotl. et Pouz. Fomes subroseus Weir; heart rot
   Fomes cajanderi Karst.
Fomitopsis fraxineus (Bull.: Fr.) Fomes fraxineus (Bull.: Fr.) Cke. wood rot
Fomitopsis officinalis (Vill.: Fr.) Bond. et Singer Fomes officinalis (Vill.: Fr.) Faull quinine fungus
Fomitopsis pinicola (Schwartz: Fr.) Karst. Fomes pinicola (Schwartz: Fr.) Cke. red belt fungus
Fomitopsis roseus (Alb. et Schw.: Fr.) Karst. Fomes roseus (Alb. et Schw.: Fr.) Karst. heart rot
Fomitopsis scutellata (Schw.) Bond. et Sing. Fomes scutellatus (Schw.) Cke. wood rot
Fumago vagans Fr. black mold
Fusarium oxysporum (Schl.) emend. Snyd. et Hans. pecan feeder root necrosis
Fusarium reticulatum Mont. var. negundinis Fusarium roseum (Lk.) emend. red stain of boxelder
   (Sherb.) Wr.    Snyd. et Hans.
Fusarium solani (Mart.) App. et Wr. emend. pecan feeder root necrosis
   Snyd. et Hans.
Fusicoccum aesculi Corda in Sturm madrone canker
G
Ganoderma applanatum (Pers.: Wallr.) Pat. Fomes applanatus (Pers.: Wallr.) Gill artist's conk
Ganoderma curtisii (Berk.) Murr. Polyporus curtisii Berk. root rot
Ganoderma lucidum (Leys. ex Fr.) Karst. varnish or laquer conk
Ganoderma tsugae Murr. Polyporus tsugae (Murr.) Overh. red varnish-top fungus
Gloeocystidiellum citrinum (Pers.) Donk Corticium radiosum (Fr.: Pers.) Fr. root and butt rot
Gloeocystidiellum radiosum root and butt rot
Gloeosporium apocryptum Ell. et Ev. anthracnose
Gloeosporium aridum Ell. et Holway ash anthracnose
Gloeosporium betularum Ell. et Mart. anthracnose leaf blight
Gloeosporium saccharinum Ell. et Ev. anthracnose
Gloeosporium ulmicolum Miles leaf spot and twig blight
Glomus fasciculatus (Thaxter) Gerd. et Trappe endomycorrhizal associate
Glomus mosseae (Nicol. et Gerd.) Gerd. et Trappe endomycorrhizal associate
Gnomonia caryae Wolf anthracnose
Gnomonia caryae var. pecanae Cole pecan liver spot
Gnomonia leptostyla (Fr.) Ces. et deNot walnut anthracnose
Gnomonia nerviseda Cole pecan vein spot
Gnomonia quercina Kleb. oak anthracnose
Gnomonia satacea (Pers.: Fr.) Ces. et deNot canker, shoot blight, leaf spot
Gnomonia tiliae Kleb. basswood anthracnose
Gnomonia ulmea (Schw.: Fr.) Thuem. black spot of elm
Gnomonia veneta (Sacc. et Speg.) Kleb. Gnomonia paltani Edg. oak anthracnose
Gomphidius ochraceus Kauffm. mycorrhizal symbiont
Gomphidius rutilus (Schael.: Fr.) Lund & Nannf. mycorrhizal symbiont
Gomphidius superiorensis Kauf. et Smith mycorrhizal symbiont
Gomphidius vinicolor Pk. mycorrhizal symbiont
Gremmeniella abietina (Lagerb.) Morelet Scleroderris lagerbergii Grem. Scleroderris canker
Guignardia aesculi (Pk.) Stew. leaf blotch
Gymnopilus spectabilis (Fr.) Singer Pholiota spectabilis (Fr.) Kumm. trunk rot
Gymnosporangium bethelii Kern juniper twig knot rust
Gymnosporangium biseptatum Ell. stem and branch gall rust
Gymnosporangium clavipes (Cke. et Pk.) Cke. et Pk. gall rust
Gymnosporangium effusum Kern gall rust
Gymnosporangium ellisii (Berk.) Farlow witches' broom rust
Gymnosporangium globosum Farlow juniper branch gall rust
Gymnosporangium inconspicuum Kern juniper witches' broom rust
Gymnosporangium juniperi-virginianae Schw. cedar applerust
Gymnosporangium kernianum Bethel brown rust
Gymnosporangium libocedri (P. Henn.) Kern witches' broom rust
Gymnosporangium nelsonii Arth. juniper stem gall rust
Gymnosporangium nidus-avis Thaxt. juniper witches' broom rust
H
Haematostereum sanguinolentum (Alb. et Stereum sanguinolentum (Alb. et red heart trunk rot
   Schw.: Fr.) Pouz.    Schw.: Fr.) Fr.
Helicobasidium purpureum (Tul.) Pat. violet root rot
Hendersonula toruloidea Natt. branch wilt and canker
Hericium coralloides (Scop.: Fr.) S.F. Gray Hydnum coralloides Scop.: Fr. trunk rot
Hericium erinaceum (Bull.: Fr.) Pers. Hydnum erinaceus Bull.: Fr. magnolia leaf spot
Herpotrichia nigra Hartig Herpotrichia juniperi (Duby) Petrak brown felt mold
Heterobasidion annosum (Fr.) Bref. Fomes annosus (Fr.) Cke. annosus root rot
Hirschioporus abietinus (Dicks.: Fr.) Donk Polyporus abietinus Dicks.: Fr. wood rot
Hydnum erinaceus Bull.: Fr. Hericium erinaceum (Bull.: Fr.) Pers. hedgehog fungus
Hymenochaete agglutinans Ell. gluing fungus
Hypoderma hedgcokii Dearn. Ploioderma hedgcokii (Dearn.) Darker needle cast
Hypoderma lethale Dearn. Ploioderma lethale (Dearn.) Darker needle cast
Hypodermella laricis Tub. larch needle csat
Hypoxylon mammatum (Wahl.) J. Miller Hypoxylon pruinatum (Klot.) Cke.; Hypoxylon canker
   H. blakei Berk. et Curt.
Hysterographium fraxini (Pers.: Fr.) deNot twig saprophyte
I
Inonotus andersonii (Ell. et Overh.) Cérny Poria andersonii (Ell. et Ev.) Cérny white pocket rot
Inonotus dryadeus (Pers.: Fr.) Murr. Polyporus dryadeus Pers.: Fr. white wood rot
Inonotus dryophilus (Berk.) Murr. Polyporus dryophilus Berk. white pocket rot
Inonotus glomeratus (Pk.) Murr. Polyporus glomeratus Pk. wood rot
Inonotus obliquus (Pers.: Fr.) Pilat Poria obliqua (Pers.: Fr.) Karst heart rot
Inonotus rheades (Peniophora polygonia, americanum, trunk rot
   rufa)
Inonotus tomentosus (Fr.) Gilbertson Polyporus tomentosus Fr. heart rot
K
Kabatiella phoradendri Darker f. sp. leaf spot
   umbellulariae Harv.
Keithia chamaecyparissi Adams Didymascella chamaecyparissi (Adams) tip blight
   Maire
L
Lachnellula occidentalis (Hahn et Ayers) Dharne stem canker
Lachnellula suecica (de Bary ex Fuckel) Nannf. stem canker
Laetiporus sulphureus (Bull.: Fr.) Bond et Singer Polyporus sulphureus Bull.: Fr. sulphur fungus
Lecanosticta acicola Theum. et Snyd. brown spot
Lentinus tigrinus Fr. heart rot
Leucocytospora kunzei (Sacc.) Z. Urba (Cytopspora kunzei Sacc.) branch canker
Linospora gleditsiae J. Miller et Wolf tarry leaf spot
Lirula abietis-concoloris (Mayr ex Dearn.) Darker needle cast
Lirula macrospora (Hartig) Darker Lophodermium filiforme Darker needle cast
Lirula punctata (Darker) Darker needle cast
Lophodermella arcuata (Darker) Darker needle cast
Lophodermella concolor (Darker) Darker needle cast
Lophodermium autumnale Darker needle cast
Lophodermium juniperinum (Fr.) deNot. foliag necrosis
Lophodermium laricinum Duby needle cast
Lophodermium nitens Darker needle cast
Lophodermium piceae (Fckl.) Hoehn. needle cast
Lophodermium pinastri (Schrad.) Chev. needle cast
Lophodermium seditiosum Minter, Staley, et Millar needle cast
Lophodermium uncinatum Darker needle cast
Lophophacidium hyperboreum Lagerb. snow blight
M
Macrophoma taxi Berl. et Vogl. yellow needle blight
Macrophomina phaseoli (Maub.) Ashby charcoal root rot
Marssonina brunnea (Ell. et Ev.) Sacc. Marssonina leaf spot
Marssonina fraxini Niessl leaf spot
Marssonina populi (Lib.) Magn. leaf spot, shoot blight
Melampsora abietis-canadensis (Farlow) Ludw. hemlock needle rust
Melampsora farlowii (Arth.) Davis hemlock cone and shoot rust
Melampsora medusae Theum. Melampsora leaf spot
Melampsorella caryophyllacearum Schroet. fir broom rust
Melanconis juglandis (Ell. et Ev.) Graves twig and branch dieback
Meliola koae Stevens koa sooty mold
Meloidogyne incognita (Kof. et White) Chitw. root knot
Meloidogyne ovalis Riffle ash root knot nematode
Microsphaera alni DC. powdery mildew
Microstroma juglandis (Berang.) Sacc. white mold
Morsus ulmi Holmes elm phloem necrosis
Mycosphaerella caryigena Dem. et Cole downy spot
Mycosphaerella cercidicola (Ell. et Kellerm.) Wolf redbud anthracnose
Mycosphaerella dendroides (Cke.) Dem. et Cole leaf blotch
Mycosphaerella effigurata (Schw.) House ash leaf spot
Mycosphaerella fraxinicola (Schw.) House ash leaf spot
Mycosphaerella glauca (Cke.) Woronichin leaf spot and twig blight
Mycosphaerella juglandis Kessler leaf spot
Mycosphaerella maculiformis (Pers.: Fr.) Schroet. leaf spot
Mycosphaerella milleri Hodges et Haasis Cercospora magnoliae Ell. et Hark. angular leaf spot
   (Imperfect state)
Mycosphaerella mori Wolf leaf spot
Mycosphaerella nyssaecola (Cke.) wolf leaf spot
Mycosphaerella sassafras (Ell. et Ev.) Bub. et Kab. sassafras leaf spot
Mycosphaerella taxi (Cooke) Lind needle blight
Myxosporium nitidum Berk. et Curt. twig blight
N
Naemacyclus minor Butin needle cast
Nectria cinnabarina Tode.: Fr. branch dieback
Nectria coccinea Pers.: Fr. var. faginata Lohm., beech canker
   Wats. et Ay.
Nectria galligena Bres. Nectria canker
Nectria magnoliae Lohm. et Hept. magnolia canker
Nectria peziza (Tode.: Fr.) Fr. Nectria umbellulariae (Plowr.) Harkn. stem canker, dieback, needle cast
Neofabraea populi G.E. Thompson canker
Neopeckia coulteri (Pk.) Sacc. pine brown-felt snow mold
O
Ovularia maclurae Ell. et Langl. Osage-orange leaf spot
Oxyporus populinus (Sokum.: Fr.) Donk Fomes connatus (Weinm.: Fr.) Gill. heart rot
P
Paxillus involutus (Batch: Fr.) Fr. brown root rot
Pellicularia koleroga Cke. Corticium stevensii Burt. thread blight
Peniophora polygonia (Fr.) Bourd. et Galz. Crytochaete polygonia (Pers.) Karst. trunk rot
Peniophora pseudo-pini Weres. et Gibs. red heartwood stain
Peniophora rufa (Fr.) Boidin trunk rot
Peniophora septentrionalis Laur. trunk rot
Perenniporia compacta (Overh.) Ryv. et Gilbn. white pocket rot
Perenniporia fraxinea (Bull.: Fr.) Ryv. Fomes fraxineus (Bull.: Fr.) Cke. wood rot
Perenniporia fraxinophilus (Peck) Ryv. Fomes fraxinophilus (Pk.) Cke. ash heart rot
Peridermium cerebroides Meinecke coastal gall rust
Peridermium filamentosum Pk. limb rust
Peridermium harknessii J.P. Moore Endocronartium harknessii (J.P. Moore) western gall rust
   Y. Hirat
Peridermium ornamentale Arth. Pucciniastrum goeppertianum (Kuehn) fir needle rust
   Kleb
Peridermium rugosum H. Jackson needle rust
Peridermium stalactiforme Arth. et Kern stalactiform rust
Pezicula acericola (Pk.) Sacc. leaf rust
Pezicula subcarnea Groves leaf spot or twig blight
Phacidium curtissii (Berk. et Rav.) Luttr. leaf spot
Phacidium infestans Karst. snow blight
Phaeocryptopus gaeumanni (Rhode) Petr. needle cast
Phaeocrytpopus nudis Petr. needle cast
Phaeolus schweinitzii (Fr.) Pat. Polyporus schweinitzii Fr. red brown butt rot
Phellinus everhartii (Ell. et Gall) A. Ames Fomes everhartii (Ell. et Gall) heart rot
   Schr. & Spauld.
Phellinus ferruginosus (Schrad.: Fr.) Pat. Poria ferruginosa (Schrad.: Fr.) Karst. white rot of slash
Phellinus igniarius (L.: Fr.) Quel. Fomes igniarius (L.: Fr.) Kickx false tender fungus
Phellinus johnsonianus (Murr.) Ryv. Fomes densus Lloyd heart rot
Phellinus laevigatus (Fr.) Bourd. et Galz. Fomes igniarius laevigatus (Fr.) Overh. heart rot
Phellinus nigrolimitatus (Rom.) Bourd. et Galz. Fomes nigrolimitatus (Rom.) Egel. root and butt rot
Phellinus pini (Thore.: Fr.) A. Ames Fomes pini (Thore.: Fr.) Karst. red ring rot
Phellinus pomaceus (Pers.) Maire Fomes pomaceus (Pers.) Lloyd trunk rot
Phellinus prunicola (Murr.) Gilbn. Poria prunicola (Murr.) Sacc. et Trott trunk rot
Phellinus punctatus (Fr.) Pilat Poria punctata (Fr.) Karst. white rot of slash
Phellinus ribis (Schum.: Fr.) Quel. Fomes ribis (Schum.: Fr.) Gill. white heart rot
Phellinus rimosus (Berk.) Pilat Fomes rimosus (Berk.) Cke. heart rot
Phellinus robustus (Karst.) Bourd. et Galz. Fomes robustus Karst. heart rot
Phellinus texanus (Morr.) A. Ames Fomes texanus (Murr.) Hedgc. et Long heart rot
Phellinus tremulae (Bond.) Bond et Boriss Fomes igniarius (L.: Fr.) Kickx var. false tinder fungus
   populinus (Neum.) Campb.
Phellinus weiri (Murr.) Gilbn. Poria weirii (Murr.) Murr. laminated root rot
Phibalis pruinosa (Ell. et Ev.) Kohn et Korf sooty-bark canker
Phleospora celtidis Ell. & Morg. leaf spot
Phlyctaena tiliae Dearn. leaf spot
Pholiota alnicola (Fr.) Singer Flammula alnicola (Fr.) Kumm. root and butt rot
Pholiota aurivella (Batsch: Fr.) Kumm. Pholiota adiposa (Fr.: Fr.) Kumm. trunk rot
Pholiota destruens (Brond.) Gillet heart rot
Pholiota hepatica (Huds.: Fr.) Singer Flammula alnicola (Huds.: Fr.) Kumm. beefsteak fungus
Pholiota limonella (Pk.) Sacc. Pholiota squarroso-adiposa Lange heart rot
Pholiota squarrosa (Muller: Fr.) Kumm. root and butt rot
Phoma aposphaerioides Briard et Hariot Phoma canker
Phoma harknessii Sacc. bark saprophyte
Phoma hystrella Sacc. yellow needle blight
Phoma pedunculi Ell. et Ev. leaf spot
Phomopsis juniperovora Hahn foliage blight
Phomopsis macrospora Kobayi & Chiba Phomopsis canker
Phomopsis occulta Trav. tip blight
Phoradendron bolleanum (Seem.) Eich. subsp. mistletoe
   densum (Torr.) Fosb.
Phoradendron bolleanum (Seem.) Eich. subsp. white fir mistletoe
   pauciflorum (Torr.) Wiens
Phoradendron flavescens (Pursh) Nutt. eastern mistletoe
Phoradendron juniperinum Engelm. subsp. mistletoe
   juniperinum Wiens
Phoradendron juniperinum Engelm. subsp. incense-cedar mistletoe
   libocedri Wiens
Phoradendron longispicum Trel. mistletoe
Phoradendron serotinum (Raf.) M.C. Johnst. eastern leafy mistletoe
Phoradendron tomentosum (DC.) Gray mistletoe
Phoradendron villosum (Nutt.) Nutt. subsp. western hairy mistletoe
   villosum Wiens
Phyllachora perseae Hodges redbay leaf spot
Phyllactinia corylea Pers. powdery mildew
Phyllactinia guttata (Fr.) Lev. powdery mildew
Phyllosticta celtidis Ell et Kell. leaf spot
Phyllosticta innumera Cke. et Harkn. leaf spot
Phyllosticta maclurae Ell. et Ev. leaf spot
Phyllosticta magnoliae Sacc. magnolia leaf spot
Phyllosticta minima (Berk. et Curt.) Ell. et Ev. tar spot
Phyllosticta opaca Ell. et Ev. leaf spot
Phymatotrichum paulowniae Sacc. leaf spot
Phymatotrichum omnivorum (Shear) Dugg. Texas root rot
Physalospora gregaria Sacc. twig blight
Physalospora ilicis (Schleich.: Fr.) Sacc. leaf spot
Phytophthora cactorum (Leb. et Cohn) Schr. damping-off
Phytophthora cinnamoni Rands root rot
Phytophthora citricola Sevada root rot
Phytophthora inflata Caros. et Tucker elm canker
Phytophthora lateralis Tucker et J.A. Milb. root rot
Piggotia fraxini Berk. et Curt. leaf spot
Piptoporus betulinus (Bull.: Fr.) Karst. heart rot
Pleurotus ostreatus (Jacq.: Fr.) Kumm. oyster mushroom
Pleurotus ulmarius (Bull.: Fr.) Kumm. elm wood rot
Ploioderma hedgcokii (Dearn.) Darker Hypoderma hedgcokii Dearn. needle cast
Podosphaera oxyacanthae DC. var. tridactyla Wallr. cherry powdery mildew
Pollaccia saliciperda (Allesch. et Tub.) v. Arx willow blight
Polyporus abietinus Dicks.: Fr. Trichaptum abietinus (Dicks.: Fr.) Ryv. trunk rot
Polyporus adustus Willd.: Fr. Bjerkandera adusta (Willd.: Fr.) Karst. sapwood decay
Polyporus berkeleyi Fr. Bondarzewia berkeleyi (Fr.) root rot
   Bond et singer
Polyporus caesius Schrad.: Fr. Postia caesia (Schrad.: Fr.) Karst. heart rot
Polyporus calkinsii (Murr.) Sacc. et Trott. heart rot
Polyporus guttulatus Pk. root rot
Polyporus hispidus Bull.: Fr. Inonotus hispidus (Bull. ex Fr.) Karst. hispidus canker
Polyporus lucidus Leys.: Fr. Ganoderma lucidum (Leys. ex Fr.) Karst varnish or laquer conk
Polyporus obtusus Berk. Spongipellis unicolor (Schw.) Murr. heart rot
Polyporus robiniophilus (Murr.) Lloyd Perenniporia robiniophila (Murr.) Ryv. heart rot
Polyporus squamosus Mich.: Fr. scaly or saddleback fungus
Polyporus versicolor L.: Fr. Coriolus versicolor (L.: Fr.) Quel. sapwood decay
Poria albipellucida Baxt. Poria rivulosa (Berk. et Curt.) Cke. redwood ring rot
Poria asiatica (Pil.) Overh. trunk rot
Poria ferruginosa (Schrad.: Fr.) Karst. Phellinus ferruginosus (Schrad.: Fr.) Pat. white rot of slash
Poria incrassata (Berk. et Curt.) Burt Serpula incrassata (Berk. et Curt.) Donk heart rot
Poria mutans (Pk.) Pk. heart rot
Poria prunicola (Murr.) Sacc. et Trott. Phellinus prunicola (Murr.) Gilbn. trunk rot
Poria punctata (Fr.) Karst. Phellinus punctatus (Fr.) Pilat white rot of slash
Poria rimosa Murr. Diptomitoporus rimosus (Murr.) heart rot
   Gilbn. et Ryv.
Poria sequoiae Bonar redwood trunk rot
Poria spiculsoa Campb. et Davids. canker rot of hickory and pecan
Poria subacida (Pk.) Sacc. Perenniporia subacida (Pk.) Donk white rot conk
Pratylenchus penetrans Cobb root lesion nematode
Pseudomonas lauracearum Harv. leaf spot
Pseudomonas mori (Boy. et Lamb.) Stev. bacterial leaf spot
Puccinia andropogonis Schw. leaf rust
Puccinia cordiae Arth. canker producing rust
Puccinia peridermiospora (Ell. et Tr.) Arth. ash rust
Pucciniastrum epilobii Otth. needle rust
Pucciniastrum goeppertianum (Keuhn) Kleb. Peridermium ornamentale Arth. needle rust
Pucciniastrum hydrangeae (Berk. et Curt.) Arth. hemlock needle rust
Pucciniastrum vaccinii (Wint.) Jorst. hemlock needle rust
Pyrofomes demidoffii (Lev.) Kotl. et Pouz. Fomes juniperinus (Schrenk) heart rot
   Sacc. et Syd.
Pythium debaryanum Hesse damping-off
Pythium irregulare Buism. damping-off and root rot
Pythium ultimum Trow. damping-off
Pythium vexans de B. root rot
R
Radulodon americanum Ryv. Radulodon caesearium (Morg.) Ryv. trunk rot
Resinicium bicolor (Alb. & Schw.: Fr.) Parm. Odontia bicolor (Alb. & Schw.) Bres. white stringy rot
Retinocyclus abietis (Crouan) Graves et Wells endophytic fungus
Rhabdocline pseudotsugae Syd. needle cast
Rhizina undulata Fr. root rot
Rhizoctonia crocorum (Pers.) DC. Fr. root rot
Rhizoctonia solani Keuhn damping-off
Rhizosphaera kalkoffii Bud. needle cast
Rhytidiella baranyayi Funk et Zalasky rough, corky bark
Rhytidiella moriformis Zalasky rough bark
Rhytisma acerinum Pers.: Fr. tar spot
Rhytisma punctatum Pers.: Fr. tar spot
Roselinia herpotrichioides Hept. et Davidson grey mold
Russula delica Fr. mycorrhizal symbiont
Russula xerampelina (Schaef.) Fr. mycorrhizal symbiont
S
Sarcotrichila alpina (Fuckel) Hoehn. needle blight
Schizophyllum commune Fr. sapwood rot
Schizoxylon microsporum Davidson et Lor. Schizoxylon canker
Scirrhia acicola (Dearn.) Sigg. brown spot
Scirrhia pini Funk et A.K. Parker red band needle blight
Scleroderma hypogaeum Zeller false puffball
Sclerotina gracilipes (Cke.) Sacc. sweetbay petal rot
Scytinostroma galactinum (Fr.) Donk Corticium galactinum (Fr.) Burt. root and butt rot
Septobasidium burtii Lloyd scale brown felt
Septobasidium pseudopedicellatum Burt scale brown felt
Septogloeum celtidis Dearn. leaf spot
Septoria aceris (Lib.) Berk. et Br. leaf blister
Septoria angustissima Pk. leaf spot
Septoria cornicola Desm. dogwood leaf spot
Septoria musiva Pk. septoria leaf spot
Septoria populicola Pk. leaf spot and canker
Septoria quercicola (Desm.) Sacc. oak leaf fungus
Septotinia podophyllina Wat. leaf blotch
Serpula himantioides (Fr.) Karst. Merulius himantioides Fr. root and butt rot
Sirococcus clavigigneti-juglandacearum Nair, butternut canker
   Kostichka, et Kuntz
Sirococcus strobilinus (Dearn.) Petr. Sirococcus tip blight
Sphaerella umbellulariae Cke. et Harkn. foliage discoloration
Sphaeropsis ulmicola Ell. et Ev. elm canker
Sphaerotheca lanestris Harkn. oak powdery mildew
Sphaerotheca phytophila Kellerm. et Swing. powdery mildew
Sphaerulina taxi (Cke.) Mass. yellow leaf scorch
Spongipellis delectans (Pk.) Murr. Polyporus delectans Pk. white rot of hardwoods
Spongipellis pachyodon (Pers.) Kotl. et Pouz. Irpex mollis Berk. et Curt. Irpex canker
Sporodesmium maclurae Thuem. Osage-orange leaf spot
Steccherinum septentrionale (Fr.) Banker Hydnum septentrionale Fr. trunk rot
Stereum chailletii Pers.: Fr. Amylostereum chailletii (Pers.: Fr.) Boid. trunk rot
Stereum gausaptum (Fr.) Fr. white heart rot
Stereum hirsutum (Willd.: Fr.) S.F. Gray sapwood decay
Stereum murraii (Berk. et Curt.) Burt Cytostereum murraii (Berk. et Curt.) trunk rot
   Pouz.
Stereum sulcatum Burt Echinodontium sulcatum (Burt) Gross trunk rot
Strumella coryneoidea Sacc. et Wint. Strumella canker
Suillus cothurnatus Sing. mycorrhizal symbiont
Suillus granulatus (L.: Fr.) Kuntze Boletus granulatus L.: Fr. mycorrhizal symbiont
Suillus pictus (Pk.) Smith & Thiers Boletinus pictus (Pk.) Smith & Thiers mycorrhizal symbiont
Suillus subaureus (Pk.) Snell ex Slipp et Snell Boletinus subaureus (Pk.) Snell ex Slipp mycorrhizal symbiont
   et Snell
Suillus subluteus (Pk.) Snell ex Slipp et Snell Boletus subluteus Pk. mycorrhizal symbiont
T
Taphrina caerulescens (Mont. et Desm.) Tul. oak leaf blister
Taphrina carveri Jenk. tar spot
Taphrina cerasi (Fckl.) Sadeb. cherry leaf curl
Taphrina johansonii Sadeb. catkin deformity
Taphrina populi-salicis Mix yellow leaf blister
Thyronectria austro-americana (Speg.) Seeler honeylocust wilt
Trametes serialis Fr. Coriolellus serialis (Fr.) Murr. heart rot
Tranzschelia pruni-spinosae (Pers.) Diet. cherry rust
Tricholoma flavovirens (Pers.: Fr.) Lund. mycorrhizal symbiont
Tuber griseum Pers.: Fr. Tuber magnatum Pico in Vitt. mycorrhizal symbiont
Tuber melanosporum Vitt. mycorrhizal symbiont
Tylopilus felleus (Bull.: Fr.) Karst. Boletus felleus Bull.: Fr. mycorrhizal symbiont
Tympanis pinastri (Pers.: Fr.) Tul. bark saprophyte
Tyromyces amarus (Hedg.) Lowe Polyporus amarus Hedgc. pocket dry rot
Tyromyces balsameus (Pk.) Murr. Polyporus balsameus Pk. brown cubical rot
   (See also Climacocystis)
Tyromyces borealis (Fr.) Imaz. Polyporus borealis Fr. heart rot
Tyromyces spraguei (Berk. et Curt.) Murr. Polyporus spraguei Berk. et Curt. root rot
U
Uncinula circinata Cke. et Pk. powdery mildew
Uncinula clintonii Pk. powdery mildew
Uncinula flexuosa Pk. powdery mildew
Uncinula salicis Wint. powdery mildew
Uredinopsis pteridis Diet. et Holw. in Diet. Uredinopsis macrosperma Cke. needle rust
Uredinopsis struthiopteridis Stormer needle rust
Uromyces digitatus Wint. koa leaf blister
Uromyces koae Arth. koa witches' broom
Ustulina deusta (Hoff.: Fr.) Lind. trunk rot
Ustulina vulgaris Tul. wood rot
V
Valsa kunzei Fr. canker
Venturia acerina Plak. leaf spot
Venturia macularis (Fr.) Mull. et v. Arx Venturia tremulae Aderh. shepherd's crook shoot blight
Venturia populina (Vuill.) Fabrici shepherd's crook shoot blight
Verticicladiella wageneri Kend. Ceratocytis waganeri Goheen et Cobb) black stain root rot
   (Perfect state)
Verticillium albo-atrum Reinke et Berth. Verticillium wilt
Virgella robusta (Tub.) Darker needle cast
Virus- Cucumber mosaic cucumber mosaic virus
Virus- Maclura mosaic Maclura mosaic virus
Virus- Morsus ulmi elm phloem necrosis virus
W
Wolfiporia cocos (Wolf) Ryv. et Gilbn. Poria cocos Wolf brown root and butt rot
X
Xiphinema americanum Cobb dagger nematode
Xylobolus frustulatus (Pers.: Fr.) Boidin white pocket rot of hardwoods