LISTS OF CITRUS DISEASE

Bacterial spot

Xanthomonas campestris pv. citrumelo

Black pit (fruit)

Pseudomonas syringae

Blast

Pseudomonas syringae

Citrus canker

Xanthomonas axonopodis =

Xanthomonas campestris pv. citri

Citrus variegated chlorosis

Xylella fastidiosa

Huanglongbing = citrus greening

Candidatus Liberibacter asiaticus

Candidatus L. africanus

Albinism

Alternaria alternata
= Alternaria tenuis
Aspergillus flavus

Alternaria brown spot

Alternaria alternata

Alternaria leaf spot of rough lemon

Alternaria citri

Alternaria stem-end rot

Alternaria citri

Anthracnose = wither-tip

Glomerella cingulata
Colletotrichum gloeosporioides [anamorph]

Areolate leaf spot

Thanatephorus cucumeris
= Pellicularia filamentosa
Rhizoctonia solani [anamorph]

Black mold rot

Aspergillus niger

Black root rot

Thielaviopsis basicola
Chalara elegans [synanamorph]

Black rot

Alternaria citri

Black spot

Guignardia citricarpa
Phyllosticta citricarpa [synanamorph]

Blue mold

Penicillium italicum

Botrytis blossom and twig blight, gummosis

Botrytis cinerea
Botryotinia fuckeliana [teleomorph]

Branch knot

Sphaeropsis tumefaciens

Brown rot (fruit)

Phytophthora citricola
Phytophthora citrophthora
Phytophthora hibernalis
Phytophthora nicotianae var. parasitica
= Phytophthora parasitica
Phytophthora palmivora
Phytophthora syringae

Charcoal root rot

Macrophomina phaseolina

Citrus black spot

Guignardia citricarpa

Damping-off

Pythium sp.
Pythium aphanidermatum
Pythium debaryanum
Pythium rostratum
Pythium ultimum
Pythium vexans
Rhizoctonia solani

Diplodia gummosis and stem-end rot

Lasiodiplodia theobromae
= Botryodiplodia theobromae
= Diplodia natalensis
Botryosphaeria rhodina [teleomorph]

Dothiorella gummosis and rot

Botryosphaeria ribis
Dothiorella gregaria [anamorph]

Dry root rot complex

Nectria haematococca
Fusarium solani [anamorph]
together with other wound-invading agents

Dry rot (fruit)

Ashbya gossypii
Nematospora coryli

Fly speck

Schizothyrium pomi
Zygophiala jamaicensis [anamorph]

Fusarium rot (fruit)

Fusarium spp.

Fusarium wilt

Fusarium oxysporum f.sp. citri

Gray mold (fruit)

Botrytis cinerea

Greasy spot and greasy spot rind blotch

Mycosphaerella citri
Stenella citri-grisea [anamorph]

Green mold

Penicillium digitatum

Heart rot

Ganoderma applanatum
Ganoderma brownii
Ganoderma lucidum
and other basidiomycetes

Hendersonula branch wilt

Hendersonula toruloidea

Leaf spot

Mycosphaerella horii
Mycosphaerella lageniformis

Mal secco

Phoma tracheiphila
= Deuterophoma tracheiphila

Mancha foliar de los citricos

Alternaria limicola

Melanose

Diaporthe citri

Phomopsis citri [anamorph]

Mucor fruit rot

Mucor paronychia
Mucor racemosus

Mushroom root rot = shoestring root rot or oak root fungus

Armillaria mellea
= Clitocybe tabescens
Rhizomorpha subcorticalis [anamorph]

Phaeoramularia leaf and fruit spot

Phaeoramularia angolensis

Phymatotrichum root rot

Phymatotrichopsis omnivora

Phomopsis stem-end rot

Phomopsis citri
Diaporthe citri [teleomorph]

Phytophthora foot rot, gummosis and root rot

Phytophthora citrophthora
Phytophthora hibernalis
Phytophthora nicotianae var. parasitica
= Phytophthora parasitica
Phytophthora palmivora
Phytophthora syringae

Pink disease

Erythricium salmonicolor
= Corticium salmonicolor
Necator decretus [anamorph]

Pink mold

Gliocladium roseum

Pleospora rot

Pleospora herbarum
Stemphylium herbarum [anamorph]

Poria root rot

Oxyporus latemarginatus
= Poria latemarginata

Post bloom fruit drop

Colletotrichum acutatum

Powdery mildew

Oidium tingitaninum
= Acrosporium tingitaninum

Rhizopus rot

Rhizopus stolonifer

Rio Grande gummosis

Possibly Lasiodiplodia theobromae
Hendersonula toruloidea
and other unknown agents

Rootlet rot

Pythium rostratum
Pythium ultimum

Rosellinia root rot

Rosellinia sp.

Scab

Elsinoë fawcettii
Sphaceloma fawcettii [anamorph]

Sclerotinia twig blight, fruit rot and root rot

Sclerotinia sclerotiorum

Septoria spot

Septoria citri

Sooty blotch

Gloeodes pomigena

Sour rot

Geotrichum citri-aurantii
Galactomyces citri-aurantii [teleomorph]
Galactomyces candidum
Galactomyces geotrichum [teleomorph]

Sweet orange scab

Elsinoë australis

Thread blight

Corticium stevensii
Pellicularia koleroga

Trichoderma rot

Trichoderma viride
Hypocrea sp. [teleomorph]

Twig blight

Rhytidhysteron rufulum

Ustulina root rot

Ustulina deusta
Nodulisporium sp. [anamorph]

Whisker mold

Penicillium ulaiense

White root rot

Rosellinia sp.
Rosellinia necatrix
Dematophora necatrix [anamorph]
Rosellinia subiculata

Citrus slump nematode

Pratylenchus coffeae

Dagger nematode

Xiphinema spp.

Lesion nematode

Pratylenchus spp.
Pratylenchus brachyurus
Pratylenchus coffeae
Pratylenchus vulnus

Needle nematode

Longidorus spp.

Root-knot nematode

Meloidogyne spp.

Sheath nematode

Hemicycliophora spp.
Hemicycliophora arenaria

Slow decline (citrus nematode)

Tylenchulus semipenetrans

Spreading decline (burrowing nematode)

Radopholus similis

Sting nematode

Belonolaimus longicaudatus

Stubby-root nematode

Paratrichodorus spp.

Stunt nematode

Tylenchorhynchus spp.

Citrus mosaic

Satsuma dwarf-related virus

Bud union crease

Virus for some combinations, otherwise genetic or unknown

Citrus leaf rugose

genus Ilarvirus, Citrus leaf rugose virus (CLRV)

Citrus yellow mosaic

genus Badnavirus

Crinkly leaf

Crinkly leaf virus (strain of Citrus variegation virus)

Infectious variegation

genus Ilarvirus, Citrus variegation virus (CVV)

Navel infectious mottling

Satsuma dwarf-related virus

Psorosis

Citrus psorosis virus (CPsV)

Satsuma dwarf

Satsuma dwarf virus (SDV)

Tatter leaf = citrange stunt

genus Capillovirus, Citrus tatter leaf virus (probably a closely related strain of Apple stem grooving virus rather than a distinct virus

Tristeza = decline and stem pitting, seedling yellows

genus Closterovirus, Citrus tristeza virus (CTV)

Citrus Leprosis Virus type I & II

Algerian navel orange virus

GTP

Blight = young tree decline, rough lemon decline

GTP

Blind pocket

GTP

Cachexia

Citrus cachexia viroid (Hostuviroid)

Chlorotic dwarf

White-fly transmitted GTP

Citrus dwarfing

Various viroids

Citrus yellow mottle

GTP

Citrus yellow ringspot

GTP

Concave gum

GTP

Cristacortis

GTP

Exocortis

Citrus exocortis viroid (CEVd) Pospiviroidae

Fatal yellows

GTP

Gummy bark

GTP, possible viroid

Gum pocket and gummy pittings

GTP, possible viroid

Impietratura

GTP

Indian citrus ringspot

GTP

Leaf curl

GTP

Leathery leaf

GTP

Leprosis

GTP associated with Brevipalpus spp. mites

Measles

GTP

Milam stem-pitting

GTP

Multiple sprouting disease

GTP

Nagami kumquat disease

GTP

Ringspot diseases

Various GTPs

Vein enation = woody gall

GTP (possible luteovirus)

Xyloporosis = cachexia

Citrus cachexia viroid (Hostuviroid)

Yellow vein

GTP

Yellow vein clearing of lemon

GTP

Australian citrus dieback

Unknown procaryote?

Stubborn

Spiroplasma citri (spread by leafhoppers)

Witches’ broom of lime

Phytoplasma

Algal disease (algal spot)

Cephaleuros virescens

Amachamiento

Unknown

Blossom-end clearing

Physiological

Chilling injury

Cold temperatures

Citrus blight

Unknown – pathogen suspected

Creasing

Nutritional (?)

Crinkle scurf

Genetic

Granulation

Physiological

Lemon sieve-tube necrosis

Unknown, but hereditary

Lime blotch = wood pocket

Inherited chimeral agent

Membranous stain

Cold temperatures

Mesophyll collapse

Unknown

Oleocellosis

Physiological

Postharvest pitting

Physiological

Puffing

Physiological

Rind breakdown

Physiological

Rind staining

Physiological

Rind stipple of grapefruit

Environmental

Rumple of lemon fruit

Unknown

Shell bark complex

Unknown – (viroid?)

Sooty mold (superficial, not pathogenic)

Capnodium

C. citricola
Capnodium sp.

Stem-end rind breakdown

Physiological

Stylar-end breakdown of Tahiti lime

Physiological

Stylar-end rind breakdown

Physiological

Stylar-end rot

Physiological

Sunburn

Excessive heat and light

Tangerine dieback

Unknown

Water spot

Physiological

Woody galls on stems

Bruchophagus fellis (Citrus Gall Wasp)

Zebra skin

Physiological