RESULTS

(10)

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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: Drippy gill

HOST: Mushroom

Drippy gill is characterized by small dark spots on gills with drops of bacterial ooze at the centers. Severe infection results in slimy areas and collapse of gills.

Drippy gill | Mushroom

DISEASE: Drippy gill

HOST: Mushroom (Agaricus campestris)

PATHOGEN: Pseudomonas agarici

SOURCE: J. Young

DISEASE: Drippy gill

HOST: Mushroom

Close-up of infected gills with bacterial ooze.

Drippy gill | Mushroom

DISEASE: Drippy gill

HOST: Mushroom (Agaricus campestris)

PATHOGEN: Pseudomonas agarici

SOURCE: J. Young

DISEASE: Drippy gill

HOST: Mushroom

Another view of small, dark spots on gills.

Drippy gill | Mushroom

DISEASE: Drippy gill

HOST: Mushroom (Agaricus campestris)

PATHOGEN: Pseudomonas agarici

SOURCE: J. Young

DISEASE: Phytoplasma disease

HOST: Armeria

Phytoplasma-infected armeria (left and right) compared with healthy plant (center).

Phytoplasma disease | Armeria

DISEASE: Phytoplasma disease

HOST: Armeria (Armeria maritima)

PATHOGEN: 'Candidatus Phytoplasma' sp.

PATHOGEN SYNONYM: Phytoplasma (undefined)

SOURCE: R. Raabe

DISEASE: Phytoplasma disease

HOST: Daffodil

Phytoplasma disease of daffodil. Healthy (right).

Phytoplasma disease | Daffodil

DISEASE: Phytoplasma disease

HOST: Daffodil (Narcissus pseudonarcissus)

PATHOGEN: 'Candidatus Phytoplasma' sp.

PATHOGEN SYNONYM: Phytoplasma (undefined)

SOURCE: R. Raabe

DISEASE: Phytoplasma disease

HOST: Gayfeather

Gayfeather with phyllody of flowers.

Phytoplasma disease | Gayfeather

DISEASE: Phytoplasma disease

HOST: Gayfeather (Liatris sp.)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: R. Raabe