Diseases of Coconut Palm
(Cocos nucifera L.)

R. Ploetz, N. Harrison, and P. Jones, primary collators (last update 7/12/99)

BACTERIAL DISEASES

Bacterial bud rot

Erwinia spp.

FUNGAL DISEASES

Algal leaf spot

Cephaleuros virescens Kunze

Anthracnose

Glomerella cingulata (Stonem.) Spaulding & Schrenk (anomorph: Colletotrichum gloeosporiodes Penz.)

Bitten leaf

Ceratocystis paradoxa (Dade) C. Moreau (anomorph: Chalara paradoxa (De Seyn.) Sacc.)

Bipolaris

Bipolaris incurvata (C. Bernard) Alcorn leafspot

Black scorch

Ceratocystis paradoxa (Dade) C. Moreau (anomorph: Chalara paradoxa (De Seyn.) Sacc.)

Bud rot

Phytophthora palmivora (E.J. Butler) E.J. Butler

P. heveae A. Thompson

P. katsurae Ko & Chang

P. nicotianae Breda de Haan

Fusarium moniliforme J. Sheld

F. solani (Mart.) Sacc.

Graphium sp.

Catacauma leaf spot

Catacauma mucosum

Damping-off

Fusarium spp.

Phytophthora spp.

Pythium spp.

Rhizoctonia solani Kühn

Dry basal rot

Ceratocystis paradoxa (Dade) C. Moreau (anomorph: Chalara paradoxa (De Seyn.) Sacc.)

Ganoderma butt rot

Ganoderma boninense Pat.

G. tornatum (Pers.) Bresad.

G. zonatum Murrill

Graphiola leaf spot

Graphiola phoenicis (Moug.) Poit.

Gray leaf blight

Pestalotiopsis palmarum (Cooke) Steyaert

Koleroga

Phytophthora arecae (Coleman) Pethybridge

Leaf blight

Cytospora palmarum Cooke

Leaf spots

Alternaria sp.

Botryosphaeria disrupta (Berk. & M.A. Curtis) Arx &
    E. Muller

Capitorostrum cocoes K.D. Hyde & Philemon

Cercospora sp.

Curvularia lunata (Wakk.) Boedijn

Cylindrocladium pteridis F.A. Wolf

Drechslera gigantea (Heald & Wolf) Ito

Drechslera halodes (Drechsler) Subram. & Jain

Epicoccum nigrum Link

Helminthosporium sp.

Macrophoma sp.

Macrosporium cocos Pass.

Melanconium sp.

Mycosphaerella palmicola Chaudhury & P.N. Rao, emend.

Periconiella cocoes M.B. Ellis

Pseudoepicoccum cocos (F. Stevens) M.B. Ellis

Phomopsis sp.

Phyllosticta palmetto Ellis & Everh.

Ramularia necator Massee

Lethal bole rot

Marasmiellus cocophilus Pegler

Lixa grande

Sphaerodothis acrocomiola (Montagne) Von Arx & Muller (Coccostroma palmicola (Speg.) Von Arx & Muller)

Lixa pequena

Phyllachora torrendiella (Batista) Subi Leau

Nut fall

Phytophthora arecae (Coleman) Pethybridge

P. palmivora (E.J. Butler) E.J. Butler

P. heveae A. Thompson

P. katsurae Ko & Chang

P. nicotianae Breda de Haan

Fusarium moniliforme J. Sheld., F. solani (Mart.) Sacc.

Graphium sp.

Powdery mildew

Oidium sp.

Queima das folhas

Botryosphaeria cocogena Subileau; (anamorph Lasiodiplodia theoboomae (Pat.) Griffon & Maudl).

Red ring

Bursaphelenchus cocophilus (Cobb) Baujard

Root rot

Fusarium spp.

Phytophthora spp.

Pythium spp.

Rhizoctonia solani Kühn

Stem bleeding

Ceratocystis paradoxa (Dade) C. Moreau

Chalara paradoxa (De Seyn.) Sacc.

Stigmina leaf spot

Stigmina palmivora (Sacc. in Trel.) S.J. Hughes

Thread blight

Pellicularia filamentosa

P. koleroga Cooke

Corticium penicillatum Petch.

VIRUS AND VIROID DISEASES

Cadang-cadang

Coconut cadang-cadang viroid

Foliar decay

SS-DNA, identity uncertain

Tinangaja

Coconut tinangaja viroid

Natuna wilt

Not known

Premature decline

Not known

Soccoro wilt

Not known

PHYTOPLASMAL DISEASES

Awka disease

Phytoplasma

Blast

Phytoplasma suspected

Cape St. Paul wilt

Phytoplasma

Cedros wilt

Phytomonas stahellii

Heart rot

Phytomonas stahellii

Kaincope disease

Phytoplasma

Kalimantan wilt

Phytoplasma suspected

Kribi disease

Phytoplasma

Lethal decline

Phytoplasma

Lethal disease

Phytoplasma

Lethal yellowing

Phytoplasma

Pudricion del cogollo

Phytoplasma

Root wilt disease

Phytoplasma suspected

Stem necrosis

Phytoplasma suspected

MISCELLANEOUS DISEASES AND DISORDERS

Bristle top

Not known

Dry bud rot

Not known, but possibly vectored by the insects Sogatella kolophon and S. yubana

Finschafen disease

Not known

Frond rot

Physiological disorder

Leaf scorch decline

Not known

Malaysia wilt

Not known