Host:wine grape (Vitis vinifera
L.) Descriptor: Symptoms Description: Detail of grapevine berries infected by Guignardia bidwellii: browning, bluing and desiccation of berries; presence of numerous black dots (pycnidia or young perithecia). Image type: Field Image location: France
Specimen in collection: No Specimen Condition: Identification Method:
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Image Citation:(?) M. Clerjeau, INRA, Centre de Recherches de Bordeaux, Bugwood.org