RESULTS

(20)

FILTER

DISEASE: Brittle root

HOST: Horseradish

Dying, stunted, yellow to brown horseradish plants.

Brittle root | Horseradish

DISEASE: Brittle root

HOST: Horseradish (Armoracia rusticana)

PATHOGEN: Spiroplasma citri

SOURCE: C. Eastman, M. Davis

DISEASE: Brittle root

HOST: Horseradish

Close-up of stunted, yellow horseradish plants.

Brittle root | Horseradish

DISEASE: Brittle root

HOST: Horseradish (Armoracia rusticana)

PATHOGEN: Spiroplasma citri

SOURCE: D. Sherrod

DISEASE: Brittle root

HOST: Horseradish

Horseradish with discolored internal tissues. Healthy root segment (top right).

Brittle root | Horseradish

DISEASE: Brittle root

HOST: Horseradish (Armoracia rusticana)

PATHOGEN: Spiroplasma citri

SOURCE: J. Fletcher, M. Davis

DISEASE: Center rot

HOST: Onion

Early symptoms of disease are necrotic, bleached areas on young leaves that typically wilt.

Center rot | Onion

DISEASE: Center rot

HOST: Onion (Allium cepa)

PATHOGEN: Pantoea ananatis

SOURCE: R. Gitaitis

DISEASE: Center rot

HOST: Onion

Advanced stage of center rot. The bacterium has moved down from leaves into the bulb.

Center rot | Onion

DISEASE: Center rot

HOST: Onion (Allium cepa)

PATHOGEN: Pantoea ananatis

SOURCE: H. Schwartz

DISEASE: Center rot

HOST: Onion

Bulb with pale yellow, discolored decayed area.

Center rot | Onion

DISEASE: Center rot

HOST: Onion (Allium cepa)

PATHOGEN: Pantoea ananatis

SOURCE: H. Schwartz

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