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APS
Education
Resources
Common Names of Plant Diseases
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DisplayTitle
Diseases of Hemp
(
Cannabis sativa
L.)
Page Content
J. M. McPartland, primary collator (last update 4/8/03)
BACTERIAL DISEASES
Bacterial blight
Pseudomonas syringae
pv.
cannabina
(Sutic & Dowson) Young et al.
Crown gall
Agrobacterium tumefaciens
(Smith & Townsend) Conn
Striatura ulcerosa
Pseudomonas syringae
pv.
mori
(Boyer & Lambert) Young et al.
Xanthomonas leaf spot
Xanthomonas campestris
pv.
cannabis
Severin
FUNGAL DISEASES
Anthracnose
Colletotrichum coccodes
(Wallroth) Hughes
=
C. atramentarium
(Berk. & Broome) Tauberhaus
= C. dematium
(Pers.:Fr.) Grove
Black dot disease
Epicoccum nigrum
Link
=
Epicoccum purpurascens
Ehrenb.
Black mildew
Schiffnerula cannabis
McPartland & Hughes
Brown blight
Alternaria alternata
(Fr.:Fr.) Keissl.
=
A. tenuis
Nees
Brown leaf spot and stem canker
Ascochyta
spp.
A. prasadii
Shukia & Pathak
Phoma
spp.
Didymella
spp. [teleomorph]
P. exigua
Desmaz.
P. glomerata
(Corda) Wollenweb. & Hochapfel
P. herbarum
Westendorp
Charcoal rot
Macrophomina phaseolina
(Tassi) Goidanich
Cladosporium stem canker
Cladosporium cladosporioides
(Fresen.) De Vries.
C. herbarum
(Pers.:Fr.) Link
Mycosphaerella tassiana
(De Not.) Johan. [teleomorph]
Curvularia leaf spot
Curvularia cymbopogonis
(C. W. Dodge) Groves
& Skolko
C. lunata
(Wakker) Boedijn
Cochliobolus lunatus
Nelson & Haasis [teleomorph]
Cylindrosporium blight
Cylindrosporium
spp.
C. cannabinum
Ibrahimov
Damping-off
Botrytis cinerea
Pers.:Fr.
Botryotinia fuckeliana
(de Bary) Whetzel [teleomorph]
Fusarium oxysporum
Schlechtend.:Fr.
F. solani
(Mart.) Sacc.
Nectria haematococca
Berk. & Broome [teleomorph]
Macrophomina phaseolina
(Tassi) Goidanich
Pythium aphanidermatum
(Edson) Fitzp.
P. debaryanum
auct. non Hesse
P. ultimum
Trow
Rhizoctonia solani
Kühn
Thanatophorus cucumeris
(A. B. Frank) Donk
[teleomorph]
=
Pellicularia filamentosa
(Pat) D. P. Rogers
Downy mildew
Pseudoperonospora cannabina
(Otth) Curzi
P. humuli
(Miyabe & Takah.) G. W. Wils.
Fusarium foot rot and root rot
Fusarium solani
(Mart.) Sacc.
Fusarium stem canker
Fusarium sulphureum
Schlechtend.
Gibberella cyanogena
(Desmaz.) Sacc. [teleomorph]
=
G. saubinett
(Mont.) Sacc.
Fusarium wilt
Fusarium oxysporum
Schlechtend.:Fr. f. sp.
cannabis
Noviello & W. C. Snyder
F. oxysporum
Schlechtend.Fr. f. sp.
vasinfectum
(Atk.)
W. C. Snyder & H. N. Hans.
Gray mold
Botrytis cinerea
Pers.:Fr.
Hemp canker
Sclerotinia sclerotiorum
(Lib.) de Bary
Leptosphaeria blight
Leptosphaeria cannabina
Ferraris & Massa
L. woroninii
Docea & Negru
L. acuta
(Fuckel) P. Karst.
Olive leaf spot
Cercospora cannabis
K. Hara & Fukui
Pseudocercospora cannabina
(Wakef.) Deighton
Ophiobolus stem canker
Ophiobolus cannabinus
Pass.
O. anguillidus
(Cooke in Cooke & Ellis) Sacc.
Phoma stem canker
Phoma herbarum
Westendorp.
P. exigua
Desmaz
Phomopsis stem canker
Phomopsis cannabina
Curzi
P. achilleae
(Sacc.) Hohn.
Diaporthe arctii
(Lasch) Nitschke var.
achilleae
(Auersw.) Wehmeyer [teleomorph]
Phymatotrichum root rot (Cotton root rot)
Phymatotrichopsis omnivora
(Duggar) Hennebert
=
Phymatotrichum omnivorum
Duggar
Pink rot
Trichothecium roseum
(Pers.:Fr.) Link
=
Cephalothecium roseum
Corda
Powdery mildew
Leveillula taurica
(Lév.) Arnaud.
Oidiopsis taurica
Salmon [anamorph]
Sphaerotheca macularis
(Wallroth:Fr.) Lind
=
S. humuli
(DC.) Burrill
Oidium
sp. [anamorph]
Red boot
Melanospora cannabis
Behrens (secondary on hemp canker)
Rhizoctonia soreshin and root rot
Rhizoctonia solani
Kühn
Rust
Aecidium cannabis
Szembel
Uredo kriegeriana
Syd. & P. Syd.
Uromyces inconspicuus
Otth
Southern blight (Sclerotium root and stem rot)
Sclerotium rolfsii
Sacc.
Athelia rolfsii
(Curzi) Tu & Kimbrough [teleomorph]
Stemphylium leaf and stem spot
Stemphylium botryosum
Wallroth
Pleospora tarda
E. Simmons [teleomorph]
S. cannabinum
(Bachtin & Gutner) Dobrozrakova et al.
Tar spot
Phyllachora cannabidis
(P. Henn.)
Tropical rot
Lasiodiplodia theobromae
(Pat.) Griffon & Maubl.
=
Botryodiplodia theobromae
Pat.
Twig blight
Dendrophoma marconii
Cav.
Botryosphaeria marconii
V. Charles & Jenkins
[teleomorph]
Verticillium wilt
Verticillium albo-atrum
Reinke & Berthier
V. dahliae
Kleb.
White leaf spot
Phomopsis ganjae
McPartland
Yellow leaf spot
Septoria cannabis
(Lasch) Sacc.
S. cannabina
Peck
NEMATODE DISEASES
Cyst
Heterodera humuli
Filipjev
H. schachtii
Schmidt
Needle
Paralongidorus maximus
(Butschli) Siddiqi
=
Longidorus maximus
(Butschli) Th. & Swang.
Root-knot
Meloidogyne incognita
(Kofoid &White) Chitwood
M. javanica
(Treub) Chitwood
Stem
Ditylenchus dipsaci
(Kühn) Filipjev
VIRAL DISEASES
Alfalfa mosaic & Lucerne mosaic
genus
Alfamovirus, Alfalfa mosaic virus
(AMV)
Arabis mosaic
genus
Nepovirus, Arabis mosaic virus
(ArMV)
Cucumber mosaic
genus
Cucumovirus, Cucumber mosaic virus
(CMV)
Hemp mosaic
genus
?, Hemp mosaic virus
Hemp streak
genus
?, Hemp streak virus
PHYTOPLASMAL DISEASES
Witches' broom
DISEASES CAUSED BY PARASITIC PLANTS
Broomrape
Orobanche ramosa
L.
Dodder
Cuscuta europaea
L.
C. pentagona
Eng.
MISCELLANEOUS DISEASES OR DISORDERS
Fasciation
Cause undetermined
Grey fleck
Magnesium deficiency
Tipburn & leaf margin necrosis
Potassium deficiency
Healthy Plants • Healthy World
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