BOIS NOIR DISEASE
|
Grape

SOURCE:
W. Schweigkofler
DISEASE:
Bois noir disease
HOST:
Grape
(Vitis vinifera 'Chardonnay')
Bois noir disease may be expressed on one branch while other branches appear healthy. Note trapezoid-shaped leaves.
PATHOGEN:
'Candidatus Phytoplasma solani'
PATHOGEN SYNONYM:
Phytoplasma Stolbur group