RESULTS

(5)

FILTER

DISEASE: Bacterial leaf spot

HOST: Cowpea

Leaf spots vary in size from small to large and some fall out in time, leaving a shot-hole appearance.

Bacterial leaf spot | Cowpea

DISEASE: Bacterial leaf spot

HOST: Cowpea (Vigna unguiculata)

PATHOGEN: Xanthomonas axonopodis pv. vignicola

PATHOGEN SYNONYM: Xanthomonas campestris pv. vignicola

SOURCE: R. Gitaitis

DISEASE: Bacterial leaf spot

HOST: Cowpea

Leaves with large, light brown necrotic areas.

Bacterial leaf spot | Cowpea

DISEASE: Bacterial leaf spot

HOST: Cowpea (Vigna unguiculata)

PATHOGEN: Xanthomonas axonopodis pv. vignicola

PATHOGEN SYNONYM: Xanthomonas campestris pv. vignicola

SOURCE: R. Gitaitis

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: X-disease (Western X) or buckskin

HOST: Cherry

X-disease causes undersized, yellowish fruit. Diseased branches turn rusty red near end of season. Some defoliation occurs on diseased branches.

X-disease (Western X) or buckskin | Cherry

DISEASE: X-disease (Western X) or buckskin

HOST: Cherry (Prunus cerasus)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: A. Jones