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Brown Eye Spot of Coffee

Scientific Name
Cercospora coffeicola
Scientific Author
Berk. & Cooke
Taxonomy
(Ascomycetes, Mycosphaerellales)
Status
Exotic Species Establishment in Australia
Reliability
High
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Diagnostic Images

Spores in LM
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Caption
Hyaline conidia. Stained acicular conidium (top) and obclavate conidium (bottom)
Source
J.R. Liberato DPI&F
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Diagnostic Images (14)
Diagnostic Notes
Symptoms

Spots occur on leaves and berries. Plants are susceptible throughout all of their developmental stages. Brown circular leaf spots, up to 15 mm in diam., sometimes with concentric rings and a yellowish halo. The centre of spot becomes grey and dark sporulation can be seen in this area.

The fungus

Fruiting amphigenous, mostly on the upper surface. Stromata slight to 50 µm diam, globular, dark brown. Conidiophores in fascicles, 3?30 stalks, pale to medium brown, sometimes branched, septate, mildly to abruptly geniculate, 20?275 x 4?6 µm. Conidial scars distinct, thickened. Conidia hyaline, acicular to obclavate, nearly straight, apex acute, base truncate or subtruncate with conspicuous thickened hilum, indistinct multiseptate, 40?150 x 2?4 (?7) µm (Chupp 1954). Descriptions of this fungus are also given by Mulder & Holliday (1974), Ellis (1976) and Hsieh & Goh (1990).
More Information
Specimen Contact
Dr Jose Liberato
Author
Liberato JR & Shivas RG
Created
08/02/2006 01:24 AEST
Last Updated
16/07/2016 01:00 AEST
Citation
Liberato JR & Shivas RG (2006) Brown Eye Spot of Coffee (Cercospora coffeicola) Updated on 7/16/2016 1:00:19 AM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

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