black rot

Diseases: Root and Butt / Root and Stem Diseases
Dothideomycetes > Incertae sedis > Botryosphaeriaceae > Guignardia bidwellii (Ellis) Viala & Ravaz

53 records

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black rot, Guignardia bidwellii  (Incertae sedis: Botryosphaeriaceae) Asexual Spore
5369076

Asexual Spore

Spores of the fungus Phyllosticta ampelicida.


Paul Bachi

black rot, Guignardia bidwellii  (Incertae sedis: Botryosphaeriaceae) Culture
0176036

Culture

Pure culture of Guignardia bidwellii on malt agar medium, after 18 d incubation at 20°C, with pycnidia grouped in masses of black sclerotia.


M. Clerjeau

black rot, Guignardia bidwellii  (Incertae sedis: Botryosphaeriaceae) Field
1495048

Field
Black rot
University of Georgia Plant Pathology Archive

black rot, Guignardia bidwellii  (Incertae sedis: Botryosphaeriaceae) Sign
0176033

Sign
Section through pycnidium in a mummified grapevine berry (diameter 80-100 µm) containing numerous conidia, in summer.
M. Clerjeau

black rot, Guignardia bidwellii  (Incertae sedis: Botryosphaeriaceae) Sign
0176034

Sign
Section through young undifferentiated perithecia in a mummified grapevine berry, in autumn or winter (diameter 80-100 µm).
M. Clerjeau

black rot, Guignardia bidwellii  (Incertae sedis: Botryosphaeriaceae) Sign
0176035

Sign
Section through perithecium in a mummified grapevine berry in spring (diameter 80-100 µm), containing numerous asci.
M. Clerjeau

black rot, Guignardia bidwellii  (Incertae sedis: Botryosphaeriaceae) Sign
1495064

Sign
black rot on grape
University of Georgia Plant Pathology Archive

black rot, Guignardia bidwellii  (Incertae sedis: Botryosphaeriaceae) Sign
1495068

Sign
black rot on stem of grape
University of Georgia Plant Pathology Archive

black rot, Guignardia bidwellii  (Incertae sedis: Botryosphaeriaceae) Sign
1495039

Sign
Bitter rot on grape
University of Georgia Plant Pathology Archive

black rot, Guignardia bidwellii  (Incertae sedis: Botryosphaeriaceae) Sign
5222071

Sign

Division of Plant Industry Archive

black rot, Guignardia bidwellii  (Incertae sedis: Botryosphaeriaceae) Sign
5368658

Sign

Dark, spore-producing bodies ("pycnidia") on fruit


Paul Bachi

black rot, Guignardia bidwellii  (Incertae sedis: Botryosphaeriaceae) Sign
5368659

Sign

Dark, spore-producing bodies ("pycnidia") on fruit oozing tan tendrils of spores


Paul Bachi

black rot, Guignardia bidwellii  (Incertae sedis: Botryosphaeriaceae) Sign
5368660

Sign

Spore-producing body ("pycnidia") oozing spores


Paul Bachi

black rot, Guignardia bidwellii  (Incertae sedis: Botryosphaeriaceae) Survey
0176029

Survey
Detail of leaf lesions on grapevine: note dark border and numerous black dots (pycnidia).
M. Clerjeau

black rot, Guignardia bidwellii  (Incertae sedis: Botryosphaeriaceae) Symptoms
0176030

Symptoms
Symptoms on grapevine bunches: mummification of infected berries.
M. Clerjeau


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