Invasive and Exotic Pathogens

The following species have been listed on an invasive species list in North America. For more information on each species, including the listing sources, images, and publication links, click on the species.

Subject Name	Scientific Name	Family	Order	Class
brown root rot	Phellinus noxius (Corner) G.H. Cunn.	Hymenochaetaceae	Hymenochaetales	Agaricomycetes
Dutch elm disease	Ophiostoma ulmi (Buisman) Nannf.	Ophiostomataceae	Ophiostomatales	Sordariomycetes
sweet orange scab	Elsinoe australis Bitanc. & Jenkins	Elsinoaceae	Myriangiales	Dothideomycetes
potato wart disease	Synchytrium endobioticum (Schilberszky) Percival	Synchytriaceae	Chytridiales	Chytridiomycetes
beech bark canker	Neonectria coccinea var. faginata (Pers.:Fr.) Fr. Var. Lohman, A. M. Watson, & Ayers	Nectriaceae	Hypocreales	Sordariomycetes
Phytophthora root and crown rots	Phytophthora spp. De Bary	Peronosporaceae	Peronosporales	Oomycetes
blue stain	Ophiostoma huntii (Robins-Jeff) DeHoog & Scheffe	Ophiostomataceae	Ophiostomatales	Sordariomycetes
blue stain	Ophiostoma piceae (Munch) Syd. & P. Syd	Ophiostomataceae	Ophiostomatales	Sordariomycetes
cherry-spruce rust	Pucciniastrum areolatum G.H. Otth	Pucciniastraceae	Uredinales	Urediniomycetes
Citrus Tristeza Virus	Closterovirus CTV	Closteroviridae	Unassigned single stranded positive-sense RNA viruses	single stranded positive-sense RNA viruses
European larch canker	Lachnellula willkommii (Hartig) Dennis	Hyaloscyphaceae	Helotiales	Leotiomycetes
turkey tail	Trametes versicolor (L.) C.G. Lloyd	Polyporaceae	Polyporales	Agaricomycetes
citrus greening	Candidatus Liberibacter asiaticus	Rhizobiaceae	Rhizobiales	Alphaproteobacteria
gladiolus rust	Uromyces transversalis (Thümen) Winter	Pucciniaceae	Uredinales	Urediniomycetes
needlecast	Stigmina deflectens (P. Karst.) M.B. Ellis	Incertae sedis	Dothideales	Dothideomycetes
leaf smut of rice	Entyloma oryzae Syd. And P. Syd.	Entylomataceae	Entylomatales	Exobasidiomycetes
coffee leaf rust	Hemileia vastatrix Berk. and Broome	Incertae sedis	Uredinales	Urediniomycetes
red core	Phytophthora fragariae Hickman	Peronosporaceae	Peronosporales	Oomycetes
Coconut cadang-cadang viroid	Cocadviroid CCCVd	Pospiviroidae	Unassigned Viroids	Viroids
Bean Common Mosaic Virus	Potyvirus BCMV	Potyviridae	Unassigned single stranded positive-sense RNA viruses	single stranded positive-sense RNA viruses
Brown needle blight of pine	Mycosphaerella gibsonii H.C. Evans	Mycosphaerellaceae	Incertae sedis	Dothideomycetes
black rot	Ceratocystis fimbriata (Ellis & Halst.) Sacc.	Ceratocystidaceae	Microascales	Sordariomycetes
chestnut blight or canker	Cryphonectria parasitica (Murrill) M.E. Barr	Incertae sedis	Diaporthales	Sordariomycetes
wood decay	Stereum spp. Pers.	Stereaceae	Russulales	Agaricomycetes
karnal bunt	Tilletia indica Mitra	Tilletiaceae	Tilletiales	Exobasidiomycetes
Japanese pear rust	Gymnosporangium asiaticum Miyabe ex. Yamada	Pucciniaceae	Uredinales	Urediniomycetes
citrus black spot	Guignardia citricarpa Kiely	Botryosphaeriaceae	Incertae sedis	Dothideomycetes
littleleaf disease	Phytophthora cinnamomi Rands	Peronosporaceae	Peronosporales	Oomycetes
mimosa wilt	Fusarium oxysporum f.sp. perniciosum (Hepting) Toole	Nectriaceae	Hypocreales	Sordariomycetes
dogwood anthracnose	Discula destructiva Redlin	Valsaceae	Diaporthales	Sordariomycetes
Dothistroma needle blight	Mycosphaerella pini Rostr.	Mycosphaerellaceae	Incertae sedis	Dothideomycetes
Diplodia blight	Sphaeropsis sapinea (Fr.) Dyko & B. Sutton	Incertae sedis	Incertae sedis	Incertae sedis
blue stain	Ophiostoma ips (Rumb.) Nannf.	Ophiostomataceae	Ophiostomatales	Sordariomycetes
Phialophora wilt	Phialophora cinerescens (Wollenw.) J.F.H. Beyma	Incertae sedis	Incertae sedis	Incertae sedis
mal secco	Phoma tracheiphila (Petri) L.A. Kantsch. & Gikaschvili	Incertae sedis	Pleosporales	Dothideomycetes
rice bacterial leaf blight	Xanthomonas campestris pv. oryzae Ishiyama	Xanthomonadaceae	Xanthomonadales	Gammaproteobacteria
bacterial leaf streak	Xanthomonas oryzae pv. oryzicola (Fang et al.) Swings et al.	Xanthomonadaceae	Xanthomonadales	Gammaproteobacteria
Australian Grapevine Yellows	Candidatus Phytoplasma australiense R.E. Davis et al., 1997	Acholeplasmataceae	Acholeplasmatales	Mollicutes
daylily rust	Puccinia hemerocallidis Thüm.	Pucciniaceae	Uredinales	Urediniomycetes
oak wilt	Ceratocystis fagacearum (T. W. Bretz) J. Hunt	Ceratocystidaceae	Microascales	Sordariomycetes
Armillaria root rot	Armillaria limonea (Stevenson) Boesewinkel	Marasmiaceae	Agaricales	Agaricomycetes
Armillaria root rot	Armillaria novae-zelandiae (G. Stev.) Boesew.	Marasmiaceae	Agaricales	Agaricomycetes
blue stain	Ceratocystis tenella Davidson	Ceratocystidaceae	Microascales	Sordariomycetes
sudden oak death	Phytophthora ramorum S. Werres, A.W.A.M. de Cock	Peronosporaceae	Peronosporales	Oomycetes
soybean rust	Phakopsora pachyrhizi Syd. & P. Syd.	Phakopsoraceae	Uredinales	Urediniomycetes
Tomato Yellow Leaf Curl Virus	Begomovirus TYLCV	Geminiviridae	Unassigned single stranded DNA viruses	single stranded DNA viruses
Southern bacterial wilt	Ralstonia solanacearum (Smith) Yabuuchi et al.	Burkholderiaceae	Burkholderiales	Betaproteobacteria
Phytophthora disease of alders	Phytophthora alni Brasier & S.A. Kirk	Peronosporaceae	Peronosporales	Oomycetes
pitch canker	Fusarium circinatum Nirenberg & O'Donnell	Nectriaceae	Hypocreales	Sordariomycetes
laurel wilt	Raffaelea lauricola Harrington & Fraedrich	Ophiostomataceae	Ophiostomatales	Sordariomycetes
beech bark disease	Nectria coccinea (Pers.) Fr.	Nectriaceae	Hypocreales	Sordariomycetes
butternut canker	Sirococcus clavigignenti-juglandacearum N. B. Nair, Kostichka & Kuntz	Incertae sedis	Incertae sedis	Incertae sedis
muscadine disease	Beauveria spp. Vuill.	Incertae sedis	Incertae sedis	Incertae sedis
Witches broom fungus	Crinipellis perniciosa (Stahel) Singer	Tricholomataceae	Agaricales	Agaricomycetes
Fungal disease of bees	Cordyceps spp. (Fr.) Link	Clavicipitaceae	Hypocreales	Sordariomycetes
Collybia fungus	Collybia fusipes (Bull.: Fr.) Quel.	Tricholomataceae	Agaricales	Agaricomycetes
Asian kelp	Undaria pinnatifida (Harvey) Suringar	Alariaceae	Laminariales	Phaeophyceae
bacterial leaf scorch	Xylella fastidiosa Wells et al., 1987	Xanthomonadaceae	Xanthomonadales	Gammaproteobacteria
sycamore anthracnose	Apiognomonia veneta (Sacc. & Speg.) Hohn.	Valsaceae	Diaporthales	Sordariomycetes
white pine blister rust	Cronartium ribicola J. C. Fisch.	Cronartiaceae	Uredinales	Urediniomycetes
Leptographium root disease	Leptographium procerum (W.B. Kendr.) M.J. Wingf	Incertae sedis	Incertae sedis	Incertae sedis
brown spot needle blight of pine	Mycosphaerella dearnessii M.E. Barr	Mycosphaerellaceae	Incertae sedis	Dothideomycetes
Cyclaneusma needle cast	Cyclaneusma minus (Butin) Dicosmo, Peredo & Mint	Rhytismataceae	Rhytismatales	Leotiomycetes
bacterial canker of poplar	Xanthomonas populi (Ride) Ride & Ride	Xanthomonadaceae	Xanthomonadales	Gammaproteobacteria
chrysanthemum white rust	Puccinia horiana P. Hennings	Pucciniaceae	Uredinales	Urediniomycetes
brown rot of fruit	Monilinia fructigena Honey	Sclerotiniaceae	Helotiales	Leotiomycetes
entomophagus fungi	Entomophthora spp. Fresen.	Entomophthoraceae	Entomophthorales	Zygomycetes
Plum Pox Virus	Potyvirus PPV	Potyviridae	Unassigned single stranded positive-sense RNA viruses	single stranded positive-sense RNA viruses
Gibberella stalk rot	Gibberella zeae (Schwein.) Petch	Nectriaceae	Hypocreales	Sordariomycetes
citrus canker	Xanthomonas axonopodis pv. citri (Hasse) Vauterin et al. 1995	Xanthomonadaceae	Xanthomonadales	Gammaproteobacteria
ryegrass bunt	Tilletia walkeri Castl. & Carris	Tilletiaceae	Tilletiales	Exobasidiomycetes

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Invasive and Exotic Pathogens with Images

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