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: Slime flux

HOST: Elm

Although bacteria are associated with slime fluxes of many trees, the causal agents have not been identified.

Slime flux | Elm

DISEASE: Slime flux

HOST: Elm (Ulmus pumila)

PATHOGEN: Causal agent unknown

SOURCE: W. Sinclair

DISEASE: Witches'-broom

HOST: Pigeon pea

Pigeon pea with witches'-broom.

Witches'-broom | Pigeon pea

DISEASE: Witches'-broom

HOST: Pigeon pea (Cajanus cajan)

PATHOGEN: 'Candidatus Phytoplasma aurantifolia'

PATHOGEN SYNONYM: Phytoplasma Peanut witches'-broom group

SOURCE: R. McCoy, M. Davis