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: Deep bark canker

HOST: Walnut

Pits in the wood and black streaks in inner bark are key diagnostic symptoms.

Deep bark canker | Walnut

DISEASE: Deep bark canker

HOST: Walnut (Juglans regia)

PATHOGEN: Brenneria rubrifaciens

PATHOGEN SYNONYM: Erwinia rubrifaciens

SOURCE: N. Schaad, M. Schroth

DISEASE: Fasciation (Shoot proliferation)

HOST: Heron's bill (Stork's bill)

Heron's bill with multiple shoots.

Fasciation (Shoot proliferation) | Heron's bill (Stork's bill)

DISEASE: Fasciation (Shoot proliferation)

HOST: Heron's bill (Stork's bill) (Erodium × variabile)

PATHOGEN: Rhodococcus fascians

SOURCE: M. Putnam