Bois noir disease | Grape

HOST:Grape

HOST (LATIN):Vitis vinifera 'Chardonnay'

PATHOGEN:Candidatus Phytoplasma solani

SYNONYM:Phytoplasma Stolbur group

SOURCE:W. Schweigkofler

Bois noir disease may be expressed on one branch while other branches appear healthy. Note trapezoid-shaped leaves.