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Common Names of Plant Diseases
Diseases of European Hazelnut (
Corylus avellana
L.)
Hazelnut (
Corylus
spp.)
Jay W. Pscheidt and Jeffrey Stone, primary collators (last update 7/21/01)
BACTERIAL DISEASES
Bacterial blight
Xanthomonas arboricola
pv.
corylina
(Miller, Bollen, Simmons, Gross & Barss 1940) Vauterin, Hoste, Kersters & Swings 1995
Bacterial canker
Pseudomonas syringae
pv
avellanae
Psallidas 1993
Crown gall
Agrobacterium tumefaciens
(Smith and Townsend 1907) Conn 1942
FUNGAL DISEASES
Anthracnose
Piggotia coryli (Desm.) Sutton
= Monostichella coryli
(Desm.) Hohn.
= Gloeosporium coryli
(Desm.) Sacc.
=
Labrella coryli
(Desm.) Sacc.
Armillaria root disease
Armillaria
spp
.
Borro sec
Cryptosporiopsis tarraconensis
Gene, Guarro & Figueras
Cytospora canker
Cytospora
spp.
Eastern filbert blight
Anisogramma anomala
(Peck) E. Müller
Kernel molds
Mycosphaerella punctiformis
(Pers.:Fries) Starb.
[teleomorph]
Ramularia
sp. [anamorph]
Phomopsis
spp.
Septoria ostryae
Peck
Kernel spot
Nemataspora coryli
Peligon
Leaf blister
Taphrina coryli
Nishida
Leaf spots
Anguillosporella vermiformis
(Davis) Braun
Asteroma coryli
(Fuckel) Sutton
Cercospora corylina
Ray
C. coryli
Montemartini
Mamianiella coryli
(Batsch ex Fries) Höhn
Monochaetia coryli
(Rostrup) Allescher
Mycosphaerella punctiformis
(Pers.:Fries) Starb.
[teleomorph]
Ramularia
sp. [anamorph]
Phyllosticta coryli
Westend
Ramularia coryi
Chevassut
Septoria ostryae
Peck
Sphaceloma coryli
Vegh & Bourgeois
Nectria canker
Nectria ditissima
Tul.
Texas root rot
Phymatotrichopsis omnivorum
(Duggar) Hennebert
Powdery mildew
Microsphaera coryli
Homma
M. ellisii
U. Braun
M. hommae
U. Braun
M. verruculosa
Yu & Lai on various
Corylus
sp.
Phyllactinia guttata
(Wallr.:Fr.) Lev.
= P. suffulta
Rust
Pucciniastrum coryli
Komarov
VIRAL DISEASES
Hazelnut mosaic
genus
Ilarvirus, Apple mosaic virus
(ApMV)
genus
Ilarvirus, Prunus necrotic ringspot virus
(PNRSV)
genus
Ilarvirus, Tulare apple mosaic virus
(TAMV)
PHYTOPLASMAL AND SPIROPLASMAL DISEASES
Filbert Stunt
unknown, suspect a phytoplasma
Hazelnut Yellows
phytoplasma(s)
MISCELLANEOUS DISEASES & DISORDERS
Blanks
empty nut shells, cause unknown
Brown Stain
brown liquefied portions of shell and kernel, cause unknown
Catkin Blast
deformed catkins, cause unknown
Sun Scald
high temperature
Wet Feet
saturated soil conditions for extended periods.