List of coconut palm diseases

This article is a list of diseases of coconut palms (Cocos nucifera).

Bacterial diseases
Coconut gone bad: the dark spots are very bitter and the whole meat has turned yellow. The first indication is a bitter taste of the water; this coconut should not be consumed.
A coconut with a large part of the meat missing.
Bacterial diseases
Bacterial bud rot Erwinia spp.

Fungal diseases
Fungal diseases
Algal leaf spot Cephaleuros virescens
Anthracnose

Glomerella cingulata (Colletotrichum gloeosporioides, anamorph)

Bitten leaf

Ceratocystis paradoxa (Chalara paradoxa, anamorph)

Bipolaris leaf spot Bipolaris incurvata
Black scorch

Ceratocystis paradoxa (Chalara paradoxa, Thielaviopsis paradoxa, anamorphs)

Bud rot

Fusarium solani
Fusarium verticillioides
Graphium sp.
Phytophthora katsurae
Phytophthora nicotianae
Phytophthora palmivora

Catacauma leaf spot Phaeochoropsis mucosa
Damping off

Fusarium spp.
Phytophthora spp.
Pythium spp.
Rhizoctonia solani

Dry basal rot

Ceratocystis paradoxa (Thielaviopsis paradoxa, anamorph)

Ganoderma butt rot

Ganoderma orbiforme
Ganoderma tornatum
Ganoderma zonatum

Graphiola leaf spot Graphiola phoenicis
Gray leaf blight Pestalotiopsis palmarum
Koleroga Phytophthora palmivora
Leaf blight Cytospora palmarum
Leaf spots

Alternaria sp.
Botryosphaeria disrupta
Capitorostrum cocoes
Cercospora sp.
Cochliobolus lunatus
Cylindrocladium pteridis
Drechslera gigantea
Drechslera halodes
Epicoccum nigrum
Helminthosporium sp.
Macrophoma sp.
Macrosporium cocos
Melanconium sp.
Mycosphaerella palmicola
Periconiella cocoes
Pseudoepicoccum cocos
Phomopsis sp.
Phyllosticta palmetto
Ramularia necator

Lethal bole rot Marasmiellus cocophilus
Lixa grande Camarotella costaricensis, Coccostromopsis palmicola
Lixa pequeña Camarotella acrocomiae
Nut fall

Fusarium verticillioides
Graphium sp.
Phytophthora katsurae
Phytophthora nicotianae
Phytophthora palmivora

Powdery mildew Oidium sp.
Queima das folhas

Botryosphaeria cocogena
Lasiodiplodia theobromae

Root rot

Fusarium spp.
Phytophthora spp.
Pythium spp.
Rhizoctonia solani

Stem bleeding

Ceratocystis paradoxa (Chalara paradoxa, Thielaviopsis paradoxa, anamorphs) Thielaviopsis

Stigmina leaf spot Stigmina palmivora
Thread blight

Ceratobasidium noxium
Corticium penicillatum
Pellicularia filamentosa

Virus and viroid
diseases
Cadang-cadang Coconut cadang-cadang viroid
Foliar decay ssDNA, identity uncertain
Tinangaja Coconut tinangaja viroid
Natuna wilt Not known
Premature decline Not known
Soccoro wilt Not known

Phytoplasmal diseases
A coconut palm with lethal yellowing
Phytoplasmal diseases
Awka disease/Texas phoenix palm decline Ca. Phytoplasma palmae
Blast Ca. Phytoplasma suspected
Cape St. Paul wilt Ca. Phytoplasma
Cedros wilt Phytomonas sp.
Heart rot Phytomonas sp.
Kaincope disease Ca. Phytoplasma
Kalimantan wilt Ca. Phytoplasma suspected
Kribi disease Ca. Phytoplasma
Lethal decline Ca. Phytoplasma
Lethal disease Ca. Phytoplasma
Lethal yellowing Ca. Phytoplasma
Pudricion del cogollo Ca. Phytoplasma
Root wilt disease Ca. Phytoplasma
Stem necrosis Ca. Phytoplasma suspected

Miscellaneous diseases and disorders
Miscellaneous diseases and disorders
Bristle top Not known
Dry bud rot Not known, but possibly vectored by the insects Sogatella kolophon and S. cubana (Tagosodes cubana)
Finschafen disease Not known
Frond rot Physiological disorder
Leaf scorch decline Not known
Malaysia wilt Not known
Red ring disease Bursaphelenchus cocophilus (nematode)
Porroca disease not known
Coconut lethal crown atrophy Not known

Further reading
  • Manimekalai, R. Soumya, V.P., Sathish Kumar, R., Selvarajan, R., Krishna Reddy, M., Sasikala, George V Thomas., Rajeev M and Baranwal, V.K. 2010. Molecular detection of 16Sr XI group Phytoplasma associated with Root (Wilt) Disease of coconut (Cocos nucifera L.) in India. Plant disease 94:636

References
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