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