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Common Names of Plant Diseases
Diseases of English (Persian) Walnut
(Juglans regia L.)
S. M. John Mircetich, primary collator; updated by B. L. Teviotdale (last
update 7/24/01)
BACTERIAL DISEASES
- Crown gall
- Agrobacterium tumefaciens
(Smith & Townsend 1907) Conn 1942
- Deep bark canker
- Erwinia rubrifaciens
Wilson, Zeitoun, & Fredrickson 1967
- Shallow bark canker
- Erwinia nigrifluens
Wilson, Starr & Berger 1957
- Walnut blight
- Xanthomonas campestris
pv. juglandis (Pierce 1901) Dye
(1978)
FUNGAL DISEASES
- Anthracnose
- Gnomonia leptostyla
(Fr.) Ces. et de Not.
- Marssonina juglandis (Lib.) Magn.
[anamorph]
- Armillaria root rot
- Armillaria mellea
(Vahl:Fr.) P. Kumm.
- Branch wilt
- Hendersonula toruloidea
Nattrass
- Cotton root rot
- Phymatotrichopsis
omnivora (Duggar) Hennebert
- = Phymatotrichum omnivorum Duggar
- Cylindrocarpon dieback
- Nectria radicicola
Gerlach & L. Nilsson
- Cylindrocarpon destructans (Zinssmeister)
Scholten
[anamorph]
- = C. radicicola Wollenw.
- Downy leaf spot
- Microstroma juglandis
(Berenger) Sacc.
- Melanconium dieback
- Melanconis chartusiana
Tul.
- Melanconium juglandinum Kunze [anamorph]
- Phytophthora crown and root rot
- Phytophthora
spp.
- P. cactorum
(Lebert & Cohn) J. Schröt.
- P. cinnamomi
Rand
- P. citricola
Sawada
- P. citrophthora
(R.E. Sm. & E.H. Sm.) Leonian
- P. cryptogea
Pethybr. & Lafferty
- P. drechsleri
Tucker
- P. megasperma
Drechs.
- P. nicotinae
Breda de Haan var. parasitica (Dastur)
G.M. Waterhouse
- = P. parasitica Dastur
- Phytophthora trunk and branch canker
- Phytophthora cactorum
(Lebert & Cohn) J. Schröt.
- P. citricola
Sawada
- P. citrophthora
(R.E. Sm. & E.H. Sm.) Leonian
NEMATODES, PARASITIC
- Pin nematode
- Paratylenchus
spp.
- Ring nematode
- Mesocriconema xenoplax
(Raski) Loof & de Grisse
- Root lesion nematode
- Pratylenchus vulnus
Allen & Jensen
- Root knot nematode
- Meloidogyne
spp.
VIRAL DISEASES
- Blackline
- genus Nepovirus, Cherry leaf roll virus (CLRV)
- Walnut ring spot
- genus Nepovirus, Cherry leaf roll virus (CLRV)
MISCELLANEOUS DISEASES AND DISORDERS
- Alternaria leaf spot
- Alternaria alternata
(Fr.:Fr.) Keissl.
- Apoplexy
- Unknown
- Ascochyta ring spot
- Ascochyta juglandis
Boltshauser
- Mesophyll collapse
- High temperature and low humidity
- Oilless nuts
- Unknown
- Pistillate flower abscission
- Excess pollen
- Stem canker
- Fusarium solani
(Mart.) Sacc.
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