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.

Bacterial diseases
Bacterial bud rot	Erwinia spp.

Fungal diseases

Fungal diseases
Algal leaf spot	Cephaleuros virescens
Anthracnose	Glomerella cingulata Colletotrichum gloeosporioides [anomorph]
Bitten leaf	Ceratocystis paradoxa Chalara paradoxa [anomorph]
Bipolaris leafspot	Bipolaris incurvata
Black scorch	Ceratocystis paradoxa Chalara paradoxa [anomorph] Thielaviopsis paradoxa
Bud rot	Phytophthora palmivora Phytophthora heveae Phytophthora katsurae Phytophthora nicotianae Fusarium moniliforme Fusarium solani Graphium sp.
Catacauma leaf spot	Catacauma mucosum
Damping-off	Fusarium spp. Phytophthora spp. Pythium spp. Rhizoctonia solani
Dry basal rot	Ceratocystis paradoxa Thielaviopsis paradoxa [anomorph]
Ganoderma butt rot	Ganoderma boninense Ganoderma tornatum Ganoderma zonatum
Graphiola leaf spot	Graphiola phoenicis
Gray leaf blight	Pestalotiopsis palmarum
Koleroga	Phytophthora arecae
Leaf blight	Cytospora palmarum
Leaf spots	Alternaria sp. Botryosphaeria disrupta Capitorostrum cocoes Cercospora sp. Curvularia lunata 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	Sphaerodothis acrocomiaeCoccostromopsis palmicola
Lixa pequena	Phyllachora torrendiellaCamarotella torrendiella
Nut fall	Phytophthora arecae Phytophthora palmivora Phytophthora katsurae Phytophthora nicotianae Fusarium moniliforme Graphium sp.
Powdery mildew	Oidium sp.
Queima das folhas	Botryosphaeria cocogena Lasiodiplodia theobromae [anomorph]
Root rot	Fusarium spp. Phytophthora spp. Pythium spp. Rhizoctonia solani
Stem bleeding	Ceratocystis paradoxa Chalara paradoxa Thielaviopis
Stigmina leaf spot	Stigmina palmivora
Thread blight	Pellicularia filamentosa Pellicularia koleroga Corticium penicillatum

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

A coconut palm with lethal yellowing

Phytoplasmal diseases
Awka disease	Phytoplasma palmae
Blast	Phytoplasma suspected
Cape St. Paul wilt	Phytoplasma
Cedros wilt	Phytomonas sp
Heart rot	Phytomonas sp
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
Stem necrosis	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)

Additional 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

Common Names of Diseases, The American Phytopathological Society

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