RESULTS

(16)

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DISEASE: Black chaff (Bacterial leaf streak)

HOST: Barley

Black chaff is characterized by water-soaked and darkened glumes on barley heads and streaks and stripes on leaves.

Black chaff (Bacterial leaf streak) | Barley

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Barley (Hordeum vulgare)

PATHOGEN: Xanthomonas translucens pv. undulosa

SOURCE: S. Thomson

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Barley

Leaf with linear, water-soaked lesions that turn necrotic and brown. Flakes of dry bacterial exudate are apparent on the lesions. The pathogen also causes black glume of barley.

Black chaff (Bacterial leaf streak) | Barley

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Barley (Hordeum vulgare)

PATHOGEN: Xanthomonas translucens pv. undulosa

SOURCE: S. Thomson

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Wheat

Water-soaked stage of leaf streak.

Black chaff (Bacterial leaf streak) | Wheat

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Wheat (Triticum aestivum)

PATHOGEN: Xanthomonas translucens pv. undulosa

SOURCE: S. Thomson

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Wheat

Interveinal brown streaks and blotches on wheat leaves, a late stage of disease. Symptoms may be confused with other diseases.

Black chaff (Bacterial leaf streak) | Wheat

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Wheat (Triticum aestivum)

PATHOGEN: Xanthomonas translucens pv. undulosa

SOURCE: R. Kilpatrick

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Wheat

Brownish black streaks and blotches on glumes.

Black chaff (Bacterial leaf streak) | Wheat

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Wheat (Triticum aestivum)

PATHOGEN: Xanthomonas translucens pv. undulosa

SOURCE: M. Boosalis

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Wheat

Leaves with blighted leaf tips, and blades with brownish red streaks.

Black chaff (Bacterial leaf streak) | Wheat

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Wheat (Triticum aestivum)

PATHOGEN: Xanthomonas translucens pv. undulosa

SOURCE: L. Claflin

DISEASE: Citrus greening (Huanglongbing)

HOST: Citrus (sp. unknown)

Citrus psyllid (Diaphorina citri), a vector of 'Candidatus Liberibacter asiaticus', the cause of citrus greening, feeding on green twig.

Citrus greening (Huanglongbing) | Citrus (sp. unknown)

DISEASE: Citrus greening (Huanglongbing)

HOST: Citrus (sp. unknown) (Citrus sp.)

PATHOGEN: 'Candidatus Liberibacter asiaticus'

PATHOGEN SYNONYM: Candidatus Liberobacter asiaticus

SOURCE: C. Jacobson

DISEASE: Citrus greening (Huanglongbing)

HOST: Citrus (sp. unknown)

Citrus psyllid (Diaphorina citri), a vector of 'Candidatus Liberibacter asiaticus', the cause of citrus greening.

Citrus greening (Huanglongbing) | Citrus (sp. unknown)

DISEASE: Citrus greening (Huanglongbing)

HOST: Citrus (sp. unknown) (Citrus sp.)

PATHOGEN: 'Candidatus Liberibacter asiaticus'

PATHOGEN SYNONYM: Candidatus Liberobacter asiaticus

SOURCE: C. Jacobson

DISEASE: Citrus greening (Huanglongbing)

HOST: Citrus (sp. unknown)

Citrus psyllid (Diaphorina citri), a vector of 'Candidatus Liberibacter asiaticus', the cause of citrus greening.

Citrus greening (Huanglongbing) | Citrus (sp. unknown)

DISEASE: Citrus greening (Huanglongbing)

HOST: Citrus (sp. unknown) (Citrus sp.)

PATHOGEN: 'Candidatus Liberibacter asiaticus'

PATHOGEN SYNONYM: Candidatus Liberobacter asiaticus

SOURCE: C. Hirayama