Grape – Black Rot
Guignardia bidwellii Grape – Black Rot Signs & Symptoms
Symptomatic fruit with pycnidia evident
Pycnidia evident in leaf spot
Pycnidia in tissue with conidia extruding
Grape – Black Rot Pathogen
Pycnidia in tissue showing ostioles, top view
Cross-section of pycnidium in plant tissue
Conidia
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Grape – Black Rot