RESULTS

(4)

FILTER

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Wheatgrass

Lesions on leaves first appear as water-soaked, translucent, long, narrow streaks. They later turn brown and necrotic and often coalesce into blighted areas.

Black chaff (Bacterial leaf streak) | Wheatgrass

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Wheatgrass (Elytrigia intermedia)

PATHOGEN: Xanthomonas translucens pv. cerealis

SOURCE: S. Mohan

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Wheatgrass

Close-up of leaf with brown necrotic streaks.

Black chaff (Bacterial leaf streak) | Wheatgrass

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Wheatgrass (Elytrigia intermedia)

PATHOGEN: Xanthomonas translucens pv. cerealis

SOURCE: S. Mohan

DISEASE: Bois noir disease

HOST: Grape

Infected plant with typical symptoms of rolling, triangular-trapezoid-shaped leaves with desiccated appearance.

Bois noir disease | Grape

DISEASE: Bois noir disease

HOST: Grape (Vitis vinifera 'Pinot Noir')

PATHOGEN: 'Candidatus Phytoplasma solani'

PATHOGEN SYNONYM: Phytoplasma Stolbur group

SOURCE: W. Schweigkofler

DISEASE: Halo blight

HOST: Bean

Leaf of 'Bountiful' bean with chlorotic halos, an early stage of disease. Tiny water-soaked are difficult to see.

Halo blight | Bean

DISEASE: Halo blight

HOST: Bean (Phaseolus vulgaris 'Bountiful')

PATHOGEN: Pseudomonas syringae pv. phaseolicola

PATHOGEN SYNONYM: Pseudomonas savastanoi pv. phaseolicola

SOURCE: M. Schroth