SOURCE:

W. Schweigkofler

DISEASE:

Bois noir disease

HOST:

Grape

(Vitis vinifera 'Chardonnay')

Typical symptoms of triangular-trapezoid-shaped, greenish yellow leaves.

PATHOGEN:

'Candidatus Phytoplasma solani'

PATHOGEN SYNONYM:

Phytoplasma Stolbur group