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Diseases of Cassava
(Manihot esculenta Crantz)

J. C. Lozano and B. Nolt, primary collators (last update 3/6/93)


BACTERIAL DISEASES

Bacterial blight
Xanthomonas campestris pv. manihotis (Berthet and Bondar) Dye
Bacterial angular leaf spot
Xanthomonas campestris pv. cassavae (Wiehe and Dowson) Maraite and Weyns
Bacterial stem gall
Agrobacterium tumefaciens (Smith and Townsend) Conn Biovar 1
Bacterial stem rot
Erwinia carotovora subsp. carotovora (Jones) Bergey et al.
Bacterial wilt
Erwinia herbicola (Lohnis) Dye

FUNGAL DISEASES

Anthracnose
Colletotrichum gloeosporioides (Penz.) Penz. & Sacc. in
    Penz. = C. gloeosporoides f. sp. manihotis
(teleomorph: Glomerella cingulata (Stoneman) Spauld.
    & Schrenk)
C. graminicola (Ces.) G.W. Wilson
Armillaria root rot (shoestring root rot)
Armillaria mellea (Vahl:Fr.) P. Kumm.
(anamorph: Rhizomorpha subcorticalis Pers.)
Black root and stem rot
Scytalidium sp.
(synanamorph: Hendersonula toruloidea Nattras)
(synanamorph: Hendersonula toruloidea Nattras)
Blight leaf spot
Cercospora vicosae Muller & Chupp
Brown leaf spot
Cercosporidium henningsii (Allesch.) Deighton
(teleomorph: Mycosphaerella henningsii Sivanesan)
Cassava ash
Oidium manihotis Henn.
Concentric ring leaf spot
Phyllosticta manihotae Viegas
P. manihoticola Syd.
Dematophora root rot (Rosellinia root rot)
Dematophora necatrix R. Hartig
(teleomorph: Rosellinia necatrix Prill.)
Diplodia root and stem rot
Diplodia manihotis Sacc.
Fusarium root rot
Fusarium oxysporum Schlechtend.:Fr.
F. solani (H. Mart.) Sacc.
(teleomorph: Nectria haematococca Berk. & Broome)
Phytophthora root rot
Phytophthora cryptogea Pethybr. & Lafferty
P. drechsleri Tucker
P. erythroseptica Pethybr.
P. nicotianae Breda de Haan var. parasitica (Dastur)
    G.M. Waterhouse
Pythium root rot
Pythium spp.
Rigidopurus root rot
Rigidoporus microporus (Sw.:Fr.) Overeem
= R. lignosus (Klotzsch) Imazeki
Rust
Uromyces spp.
Sclerotium root rot (southern blight)
Sclerotium rolfsii Sacc.
(teleomorph: Athelia rolfsii (Curzi) Tu & Kimbrough)
Superelongation
Sphaceloma manihoticola Bitancourt & Jenk.
(teleomorph: Elsinoe brasiliensis Bitancourt & Jenk.)
Verticillium root and stem rot
Verticillium dahliae Kleb.
White leaf spot
Phaeoramularia manihotis (F. Stevens & Solheim) M.B. Ellis

MISCELLANEOUS DISEASES OR DISORDERS

Post-harvest root rot
Physiologic and pathogenic deteriorations
Root smallpox disease
Microbial rotting after feeding by Cyrtomenus bergi Froeschner

VIRUS DISEASES

(Also mycoplasmalike organism [MLO])
African cassava mosaic
African cassava mosaic virus
Antholysis
MLO
Cassava common mosaic
Cassava common mosaic virus
Cassava frogskin
Phytoreolike virus (probably)
Cassava green mottle
Cassava green mottle virus
Cassava symptomless infections
Cassava American latent virus
Cassava Ivorian bacilliform virus
Cassava vein mosaic
Cassava vein mosaic virus
Indian cassava mosaic
Indian cassava mosaic virus
Witches' broom
MLO