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Diseases of Date Palm
(Phoenix dactylifera L.)

Howard D. Ohr and John B. Carpenter, primary collators (last update 3/8/93)


FUNGAL DISEASES

Bayoud* (Fusariose)
Fusarium oxysporum Schlechtend.:Fr. f. sp. albedinis
Belaat*
Phytophthora sp.
Bending head* (Le couer qui penche)
Ceratocystis paradoxa (Dade) C. Moreau
(anamorph: Chalara paradoxa (De Seyn.) Sacc.
= Thielaviopsis paradoxa (De Seyn.) Höhn.)
Lasiodiplodia theobromae (Pat.) Griffon & Maubl.
= Botryodiplodia theobromae Pat.
Black leaf spot*
Chaetosphaeropsis sp.
Black scorch* (Medjnoon)
Ceratocystis paradoxa (Dade) C. Moreau
(anamorph: Chalara paradoxa (De Seyn.) Sacc.)
Diplodia disease
Diplodia phoenicum (Sacc.) H. Fawc. & L.J. Klotz
Lasiodiplodia theobromae (Pat.) Griffon & Maubl.
= D. natalensis Pole-Evans
Fruit rots
Alternaria spp.
Aspergillus spp.
Fusarium spp.
Penicillium spp., etc.
Graphiola leaf spot
Graphiola phoenicis (Moug.) Poit.
Inflorescence rot
Diplodia spp.
Fusarium spp.
Thielaviopsis spp.
Khamedj*
Mauginiella scaettae Cavara
Omphalia root rot
Omphalia tralucida Bliss
O. pigmentata Bliss
Pestalotia leaf spot*
Pestalotiopsis palmarum (Cooke) Steyaert
= Pestalotia palmarum Cooke
Taches brunes* (brown leaf spot)
Mycosphaerella tassiana (De Not.) Johans.
(anamorph: Cladosporium herbarum (Per.:Fr.) Link)
Terminal bud rot*
Ceratocystis paradoxa (Dade) C. Moreau
(anamorph: Chalara paradoxa (De Seyn.) Sacc.)

MISCELLANEOUS DISEASES OR DISORDERS

Al-Wijm*
Unknown cause
Barhee disorder
Unknown cause
Blacknose
Physiological disorder
Black scald
Physical disorder
Crosscut
Anatomical defect, fruitstock
Faround
Unknown cause
Internal browning
Unknown cause
Lethal yellowing
Mycoplasmalike organism (MLO)
Rapid decline
Unknown cause

NEMATODES, PARASITIC

Root knot
Meloidogyne arenaria (Neal) Chitwood*
M. hapla Chitwood*
M. incognita (Kofoid & White) Chitwood
M. javanica (Treub) Chitwood
Root lesion
Pratylenchus penetrans (Cobb) Filipjev & Schuurmans-Stekhoven*

(*) Those diseases not known to exist in the United States are marked with an asterisk and are classed as 'exotic'.