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Diseases - Foliage Diseases

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Subject Scientific Name Images
Aggregate sheath spot Ceratobasidium setariae 1
alfalfa leaf spot Pseudopeziza medicaginis 3
Alternaria black molds / stem cankers Alternaria spp. 54
Alternaria blight Alternaria dianthicola 6
Alternaria blotch of apple Alternaria mali 1
Alternaria leaf blight Alternaria cucumerina 7
Alternaria leaf spot Alternaria padwickii 10
angular leaf spot of cotton Xanthomonas citri ssp. malvacearum 3
angular leaf spot of strawberry Xanthomonas fragariae 17
anthracnose Apiognomonia quercina 1
anthracnose Apiognomonia spp. 3
anthracnose Colletotrichum acutatum 12
anthracnose Colletotrichum coccodes 2
anthracnose Colletotrichum dematium 3
anthracnose Colletotrichum fragariae 5
anthracnose Colletotrichum graminicola 8
anthracnose Colletotrichum higginsianum 1
anthracnose Colletotrichum nicotianae 2
anthracnose Colletotrichum orbiculare 69
anthracnose Colletotrichum spp. 59
anthracnose Colletotrichum trifolii 1
anthracnose Colletotrichum truncatum 11
anthracnose Elsinoe veneta 2
anthracnose Gnomonia spp. 2
anthracnose Polystigma fulvum 2
Anthracnose, pink boll rot or seedling blight of cotton Colletotrichum gossypii 1
apple scab Venturia inaequalis 41
apricot chlorotic leafroll Phytoplasma 3
Arabis Mosaic Virus Nepovirus ArMV 8
Ascochyta blight Ascochyta lentis 6
Ascochyta blight of cotton Ascochyta gossypii 1
Ascochyta fungi Ascochyta spp. 64
ash anthracnose Gnomoniella fraxini 11
ash leaf spot Mycosphaerella fraxinicola 1
ash rusts Puccinia sparganioides 4
aster yellows phytoplasma Candidatus Phytoplasma asteris 33
avocado scab Sphaceloma perseae 1
bacterial leaf blight of rice Xanthomonas oryzae pv. oryzae 4
bacterial leaf streak Xanthomonas oryzae pv. oryzicola 4
barley leaf stripe Pyrenophora graminea 1
barley scald Rhynchosporium secalis 7
Barley Stripe Mosaic Virus Hordeivirus BSMV 2
basil downy mildew Peronospora belbahrii 10
bean angular leaf spot Phaeoisariopsis griseola 16
bean anthracnose Colletotrichum lindemuthianum 16
Beet Curly Top Virus Hybrigeminivirus BCTV 24
Beet Leaf Curl Virus Rhabdovirus BLCV 2
Bipolaris fungus Bipolaris spicifera 6
birch rust Melampsoridium betulinum 3
black Sigatoka disease Mycosphaerella fijiensis 8
black spot Alternaria brassicae 1
black spot Alternaria brassicicola 15
black spot Diplocarpon rosae 17
black spot of Japanese pear Alternaria kikuchiana 1
blue mold Peronospora tabacina 26
Blumeriella leaf spot of cherry and plum Blumeriella jaapii 7
Botryotinia blight Botryotinia fuckeliana 1
Botrytis leaf blight Botrytis squamosa 5
bronze leaf disease Apioplagiostoma populi 18
bronze leaf disease Apioplagiostoma spp. 1
brown felt blight Herpotrichia juniperi 6
brown felt blight of pines Neopeckia coulteri 4
Brown needle blight of pine Mycosphaerella gibsonii 1
brown rust Puccinia tanaceti 2
brown spot Alternaria alternata 30
brown spot needle blight of pine Mycosphaerella dearnessii 50
brown spot of corn Physoderma maydis 10
brown spot of rice Cochliobolus miyabeanus 7
camellia leaf gall Exobasidium camelliae 5
canker and die back of Siberian Elm Tubercularia ulmea 4
Cercospora leaf spot Cercospora arachidicola 3
Cercospora leaf spot Cercospora beticola 15
Cercospora leaf spot Cercospora citrullina 5
Cercospora leaf spot Cercospora fici 6
Cercospora leaf spot Cercospora medicaginis 11
Cercospora leaf spot Cercospora zeae-maydis 7
Cercospora leaf spot of rose Cercospora rosicola 1
Cercosporella leaf spot Cercosporella rubi 2
Cercosporella leaf spots Cercosporella spp. 2
Chaetoseptoria leaf spot Chaetoseptoria wellmanii 3
cherry leaf spot Blumeria jaapii 2
Cherry Little Cherry Virus 2
Cherry Rasp Leaf Virus Nepovirus CRLV 6
cherry-spruce rust Pucciniastrum areolatum 14
Chrysanthemum Stunt Viroid Pospiviroid CSVd 4
chrysanthemum white rust Puccinia horiana 15
Chrysomyxa rust of spruce Chrysomyxa ledi 1
citrus black spot Guignardia citricarpa 2
citrus blight disease 9
citrus canker Xanthomonas citri 184
citrus greening Candidatus Liberibacter asiaticus 42
Citrus Leprosis Virus Unassigned Rhabdovirus CiLV 7
Citrus Tatter Leaf Virus Capillovirus CTLV 2
clover leaf spot Pseudopeziza trifolii 1
Cochliobolus leaf spot Bipolaris sorokiniana 2
Cochliobolus leaf spot / black kernel Cochliobolus lunatus 1
coffee leaf rust Hemileia vastatrix 4
common corn rust Puccinia sorghi 16
common snow mold Phacidium infestans 2
crown rust Puccinia coronata 21
Cyclaneusma needle cast Cyclaneusma minus 15
Cylindrocladium black rot Cylindrocladium parasiticum 3
Diplodia blight Sphaeropsis sapinea 114
dogwood anthracnose Discula destructiva 32
Dothistroma needle blight Mycosphaerella pini 22
Douglas-fir needlecast Rhabdocline pseudotsugae 18
downy mildew Bremia lactucae 26
downy mildew Hyaloperonospora brassicae 2
downy mildew Hyaloperonospora parasitica 11
downy mildew Peronospora antirrhini 1
downy mildew Peronospora arthurii 1
downy mildew Peronospora destructor 44
downy mildew Peronospora farinosa 8
downy mildew Peronospora lamii 29
downy mildew Peronospora manshurica 14
downy mildew Peronospora parasitica 7
downy mildew Peronospora sparsa 8
downy mildew Peronospora spp. 21
downy mildew Peronospora trifoliorum 8
downy mildew Plasmopara halstedii 13
downy mildew Plasmopara obducens 21
downy mildew Plasmopara viticola 19
downy mildew Pseudoperonospora cubensis 62
downy mildew Sclerophthora macrospora 6
downy mildew of potentilla Peronospora potentillae 4
downy spot Microstroma juglandis 4
Drechslera leaf spot Drechslera spp. 3
dry bean rust Uromyces appendiculatus 121
dry rot of ears and stalks of maize Stenocarpella macrospora 6
early blight Alternaria solani 86
edema 46
Elytroderma needle cast of pine Elytroderma deformans 6
Embellisia skin blotch and bulb canker of garlic Embellisia allii 8
Entomosporium leaf spot Diplocarpon mespili 9
eye spot Kabatiella zeae 10
eye spot Phyllosticta minima 11
fir needle cast Lirula abietis-concoloris 3
fir-fireweed rust Pucciniastrum epilobii 18
Floury leaf spot Mycovellosiella phaseoli 8
foot rot Pseudocercosporella herpotrichoides 2
frog-eye leafspot Cercospora nicotianae 2
frogeye leaf spot Cercospora sojina 11
gangrene Phoma exigua var. foveata 1
gladiolus rust Uromyces transversalis 2
Grapevine Fanleaf Virus Nepovirus GFLV 2
Grapevine Vein Yellows and Leaf Roll 2
Graphiola leaf spot Graphiola phoenicis 7
gray leaf spot Magnaporthe grisea 20
gray leaf spot Stemphylium solani 1
green alga Cephaleuros virescens 7
guava rust Puccinia psidii 3
Guignardia blotch Guignardia spp. 2
Guignardia blotch of buckeyes and horsechestnuts Guignardia aesculi 21
Gynosporanium rusts Gymnosporangium spp. 10
Helminthosporium leaf blotch Drechslera avenacea 1
Helminthosporium leaf spot Helminthosporium spp. 20
Hemiphacidium fungus Hemiphacidium planum 1
hemlock needle rust Pucciniastrum vaccinii 6
hemlock rust Melampsora farlowii 1
Herpotrichia fungi Herpotrichia spp. 2
Impatiens Necrotic Spot Virus Tospovirus INSV 31
ink spot leaf blight Ciborinia whetzelii 7
iris leaf spot Davidiella macrospora 30
Japanese pear rust Gymnosporangium asiaticum 5
Japanese pear scab Venturia nashicola 2
juniper blight Cercospora sequoiae junipera 1
juniper broom rust Gymnosporangium speciosum 1
juniper-pear rust Gymnosporangium sabinae 8
Kabatina blight Kabatina juniperi 11
larch needle cast Hypodermella laricis 7
large-spored spruce-laborador tea/needle rust Chrysomyxa ledicola 2
late blight Phytophthora infestans 82
leaf and flower gall Exobasidium vaccinii 4
leaf blight Drechslera gigantea 8
leaf blight (Isariopsis leaf spot) Mycosphaerella personata 8
leaf blight of fennel Cercosporidium punctum 2
leaf blister of birch Taphrina betulina 5
leaf blister of elm Taphrina ulmi 1
leaf blister of maple Taphrina sacchari 2
leaf blister of poplar Taphrina populina 3
leaf blotch Stagonospora nodorum 16
leaf curl Taphrina communis 8
leaf mold Passalora fulva 11
leaf roll 1
leaf scorch Diplocarpon earlianum 7
leaf scorches 5
leaf shotholes Cylindrosporium spp. 2
leaf spot Ceratobasidium stevensii 4
leaf spot Cercostigmina protearum var. protearum 2
leaf spot Mycosphaerella maculiformis 3
leaf spot Passalora sequoiae 4
leaf spot Ramularia didyma 1
leaf spot Stemphylium sarciniforme 1
leaf spot Stemphylium spp. 3
leaf spot of maize Bipolaris zeicola 2
leaf streak/black chaff Xanthomonas translucens pv. translucens 2
lemongrass rust Puccinia nakanishikii 7
Leptosphaerulina leaf blight Leptosphaerulina trifolii 8
lime witches’ broom phytoplasma Candidatus Phytoplasma aurantifolia 3
lodgepole pine needle cast Lophodermella concolor 3
Lophodermium needle casts Lophodermium spp. 24
mal secco Phoma tracheiphila 1
maple cankers Stegonsporium spp. 6
Marssonina blight of poplar Marssonina populi 8
Marssonina leaf spot Marssonina betulae 18
Marssonina leaf spot Marssonina juglandis 2
Marssonina leaf spot Marssonina salicicola 5
Marssonina leaf spot Marssonina tremulae 5
Marssonina leaf spots Marssonina spp. 9
Medusa needle blight Davisomycella medusa 3
Melampsora leaf rust Melampsora laricis-populina 4
Melampsora leaf rust Melampsora populnea f.sp. laricis 2
Melampsora rusts Melampsora spp. 6
melanose Diaporthe citri 8
mint rust Puccinia menthae 1
mosaic viruses (general) 56
mountain ash juniper rust Gymnosporangium cornutum 5
mycelial neck rot Botrytis tulipae 24
Mycosphaerella leaf spot Mycosphaerella cerasella 4
Mycosphaerella leaf spot Mycosphaerella microsora 2
needle blight Cercospora pini-densiflorae 2
needle blight of cedar Didymascella thujina 2
needle blight of larch Meria laricis 6
needle cast Bifusella linearis 1
needle cast Bifusella saccata 2
needle cast Lophodermium juniperinum 1
needle cast Lophodermium seditiosum 2
needle cast Virgella robusta 2
needle rust Coleosporium senecionis 4
needle rust Coleosporium tussilaginis 2
needle rust Pucciniastrum goeppertianum 1
needlecast Bifusella pini 1
needlecast Davisomycella montana 1
needlecast Gloeocoryneum cinereum 1
needlecast Lophodermella montivaga 1
needlecast Meloderma desmazieri 3
needlecast Stigmina deflectens 5
needlecasts Davisomycella spp. 7
northern corn leaf blight Exserohilum turcicum 10
oak anthracnose Apiognomonia errabunda 18
oak leaf blister Taphrina caerulescens 33
oat crown rust Puccinia coronata var. avenae 3
oat stem rust Puccinia graminis f.sp. avenae 3
onion rust Puccinia allii 34
onion smudge Colletotrichum circinans 5
orange rust Arthuriomyces peckianus 16
pasmo disease of linseed Mycosphaerella linicola 1
Peach Latent Mosaic Viroid Pelamoviroid PLMVd 3
peach leaf curl Taphrina deformans 12
peach scab Venturia carpophila 5
Peach X-disease Phytoplasma 3
Peanut Stunt Virus Cucumovirus PSV 5
pear decline phytoplasma Candidatus Phytoplasma pyri 1
pear scab Venturia pirina 1
pecan scab Cladosporium caryigenum 28
peony leaf blotch Cladosporium paeoniae 2
Pestalotiopsis blight Pestalotiopsis quepinii 3
Pestalotiopsis leaf spot Pestalotiopsis spp. 25
Phacidium fungus Phacidium coniferarum 6
Philippine downy mildew Peronosclerospora philippinensis 1
Phloeospora leaf spot Phloeospora spp. 1
Phloeosporella fungus Phloeosporella padi 7
phlox powdery mildew Erysiphe cichoracearum 10
Phoma blight Phoma clematidina 9
Phoma blight Phoma destructiva 1
Phoma blight Phoma exigua var. exigua 5
Phoma blight Phoma macdonaldii 2
Phoma blight Phoma medicaginis 1
Phoma blights Phoma spp. 6
Phomopsis cane and leaf spot Phomopsis viticola 7
Phomopsis leaf blight and fruit rot Phomopsis longicolla 4
Phomopsis leaf blight and fruit rot Phomopsis obscurans 10
Phyllosticta leaf spot Phyllosticta cotoneastri 6
Phyllosticta leaf spots Phyllosticta spp. 28
Phytophthora basal canker Phytophthora palmivora 4
pine needle cast Lophodermella cerina 16
pine needle cast Lophodermium nitens 3
pine needle cast Lophodermium pinastri 34
pine needle rust Coleosporium asterum 11
pine needle rusts Coleosporium spp. 39
pink snow mold Microdochium nivale 3
Ploioderma needle cast of pine Ploioderma lethale 14
poplar rust Melampsora medusae 8
potato deforming rust Aecidium cantensis 2
Potato Mop Top Virus Carlavirus PMTV 1
potato stolbur phytoplasma Phytoplasma SMLO 2
Potato Yellow Dwarf Virus Nucleorhabdovirus PYDV 5
powdery mildew Blumeria graminis 8
powdery mildew Erysiphe betae 31
powdery mildew Erysiphe diffusa 8
powdery mildew Erysiphe flexuosa 2
powdery mildew Erysiphe necator 10
powdery mildew Erysiphe palczewskii 1
powdery mildew Erysiphe pisi 3
powdery mildew Erysiphe poeltii 5
powdery mildew Erysiphe pulchra 1
powdery mildew Erysiphe spp. 21
powdery mildew Erysiphe syringae 3
powdery mildew Golovinomyces cichoracearum 31
powdery mildew Leveillula taurica 7
powdery mildew Microsphaera penicillata 16
powdery mildew Oidium ipomoeae 1
powdery mildew Oidium murrayae 1
powdery mildew Oidium spp. 27
powdery mildew Phyllactinia fraxini 2
powdery mildew Phyllactinia guttata 5
powdery mildew Phyllactinia moricola 1
powdery mildew Phyllactinia spp. 11
powdery mildew Podosphaera fuliginea 22
powdery mildew Podosphaera leucotricha 10
powdery mildew Podosphaera macularis 25
powdery mildew Podosphaera pannosa 1
powdery mildew Podosphaera spp. 13
powdery mildew Podosphaera xanthii 39
powdery mildew Sawadaea tulasnei 1
powdery mildew Sphaerotheca delphinii 3
powdery mildew Sphaerotheca phytoptophila 4
powdery mildew of oak Microsphaera alphitoides 19
powdery mildews 6
powdery mildews Sphaerotheca spp. 4
Pseudocercospora leaf spot Pseudocercospora kalmiae 3
Pseudocercospora leaf spot Pseudocercospora vitis 5
puccinia rust Puccinia carduorum 4
puccinia rusts Puccinia spp. 5
puffy fruit 2
purple blotch Alternaria porri 26
Pyrenophora leaf blight Drechslera dictyoides 1
Raspberry Leaf Curl Virus Luteovirus RLCV 1
Raspberry Ringspot Virus Nepovirus RpRSV 3
red belt abiotic damage 3
Rhabdocline needlecast Rhabdocline weirii 4
Rhabdocline needlecasts Rhabdocline spp. 2
Rhizosphaera needle cast Rhizosphaera kalkhoffii 20
Rhizosphaera needle cast Rhizosphaera pini 13
Rhizosphaera needle cast Rhizosphaera spp. 1
rose rust Phragmidium mucronatum 8
Rostratum leaf spot Exserohilum rostratum 1
rush skeletonweed rust Puccinia chondrillina 6
rust Cerotelium fici 3
rust Puccinia aristidae 14
rust Puccinia pelargonii-zonalis 2
rust Puccinia punctiformis 2
rust Tranzschelia discolor f.sp. persicae 1
rust Tranzschelia discolor 1
rust Tranzschelia spp. 10
rust Uromyces ari-triphylli 1
rust Uromyces dianthi 1
rusts 6
Satsuma Dwarf Virus Sadwavirus SDV 6
scab Cladosporium cucumerinum 10
Septoria canker of poplar Mycosphaerella populorum 1
Septoria leaf spot Septoria betulae 7
Septoria leaf spot Septoria chrysanthemi 1
Septoria leaf spot Septoria cornicola 4
Septoria leaf spot Septoria glycines 9
Septoria leaf spot Septoria pisi 10
Septoria leaf spot and canker Septoria musiva 5
Septoria leaf spot and canker Septoria populicola 1
Septoria leaf spot and cankers Septoria spp. 39
Septoria leaf spot of wheat Septoria tritici 19
Septoria leafspot, annular leafspot Septoria lycopersici malagutii 3
sharp eyespot Ceratobasidium cereale 2
shepherd's crook leaf and shoot blight Venturia populina 1
shepherd's crook leaf and shoot blight Venturia tremulae 9
Sirococcus blight of conifers Sirococcus conigenus 48
snow mold Typhula incarnata 3
snow molds Typhula spp. 3
sooty blotch Gloeodes pomigena 2
sorghum rough leaf spot Ascochyta sorghi 1
sour orange scab Elsinoe fawcettii 2
Southern corn leaf blight and stalk rot Bipolaris maydis 6
Southern corn rust Puccinia polysora 2
soybean rust Phakopsora pachyrhizi 40
spot anthracnose Elsinoe corni 2
spring dead spot Ophiosphaerella korrae 14
spruce needle cast Lophodermium piceae 3
spruce needle cast/blight Lirula macrospora 14
spruce needle rust Chrysomyxa weirii 1
Squash Leaf Curl Virus Bigeminivirus SLCV 5
Stemphylium leaf blight and stalk rot Stemphylium vesicarium 5
Stemphylium leaf spot Stemphylium botryosum 7
Stigmina fungus Wilsonomyces carpophilus 8
Stigmina leaf spot Stigmina lautii 5
Stigmina leaf spots Stigmina spp. 4
Strawberry Crinkle Virus Cytorhabdovirus SCrV 2
Strawberry Latent Ringspot Virus Nepovirus SLRSV 1
strawberry leaf spot Mycosphaerella fragariae 25
Strawberry Mild Yellow Edge Virus Luteovirus SMYEV 1
Strawberry Vein Banding Virus Caulimovirus SVBV 1
stripe rust Puccinia striiformis 21
summer patch Magnaporthe poae 6
Swiss needle cast Phaeocryptopus gaeumannii 24
sycamore anthracnose Apiognomonia veneta 14
take-all root rot Gaeumannomyces graminis var. tritici 6
tan spot Pyrenophora tritici-repentis 6
tar spot Rhytisma americanum 2
tar spot Rhytisma punctatum 3
tar spot needlecast Davisomycella ampla 12
tar spot of maple Rhytisma acerinum 22
tar spots Rhytisma spp. 3
Tomato Black Ring Virus Nepovirus TBRV 6
Tomato Ringspot Virus Nepovirus ToRSV 11
tracheomycosis 2
twist rust Melampsora populnea 6
Venturia leaf scabs and blights Venturia spp. 2
Volutella blight Volutella buxi 11
Volutella blight Volutella pachysandrae 1
walnut anthracnose Gnomonia leptostyla 3
web blotch of peanut Phoma arachidicola 1
wheat leaf rust Puccinia recondita 14
wheat stem rust Puccinia graminis 18
white leaf spot Cercospora brassicicola 4
White Leaf Spot Pseudocercosporella albida 3
White Leaf Streak of Rice Mycovellosiella oryzae 1
white spot Pseudocercosporella capsellae 2
willow rust Melampsora salicina 4
willow scab Venturia saliciperda 1
witches broom rust Gymnosporangium nelsonii 3
Xanthomonas leaf blight of onion Xanthomonas axonopodis pv. allii 51
yellow leaf blotch Pseudopeziza jonesii 3
zonate leaf spot Grovesinia pyramidalis 5

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