RESULTS

(6)

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DISEASE: Bacterial blight

HOST: Photinia

Symptoms of photinia bud blight shown here are similar to those of blast of pear and apple, caused by Pseudomonas syringae pv. syringae.

Bacterial blight | Photinia

DISEASE: Bacterial blight

HOST: Photinia (Photinia glabra)

PATHOGEN: Pseudomonas syringae pv. photiniae

SOURCE: M. Goto

DISEASE: Bacterial soft rot

HOST: Wasabi (Japanese horseradish)

Longitudinal sections of diseased rhizomes with discolored vascular tissues.

Bacterial soft rot | Wasabi (Japanese horseradish)

DISEASE: Bacterial soft rot

HOST: Wasabi (Japanese horseradish) (Wasabia japonica)

PATHOGEN: Pectobacterium wasabiae

PATHOGEN SYNONYM: Erwinia carotovora subsp. wasabiae

SOURCE: M. Goto

DISEASE: Bacterial soft rot

HOST: Wasabi (Japanese horseradish)

Longitudinal section of rhizome with discolored vascular bundles (left), and rhizome with external symptoms (right).

Bacterial soft rot | Wasabi (Japanese horseradish)

DISEASE: Bacterial soft rot

HOST: Wasabi (Japanese horseradish) (Wasabia japonica)

PATHOGEN: Pectobacterium wasabiae

PATHOGEN SYNONYM: Erwinia carotovora subsp. wasabiae

SOURCE: M. Goto

DISEASE: Bacterial soft rot

HOST: Wasabi (Japanese horseradish)

Cross section of rhizome with dark, infected vascular bundles.

Bacterial soft rot | Wasabi (Japanese horseradish)

DISEASE: Bacterial soft rot

HOST: Wasabi (Japanese horseradish) (Wasabia japonica)

PATHOGEN: Pectobacterium wasabiae

PATHOGEN SYNONYM: Erwinia carotovora subsp. wasabiae

SOURCE: G. Rodriguez

DISEASE: Bacterial wilt

HOST: Grass

Wilted and dead patches of diseased creeping bent grass (Toronto grass) on golf green.

Bacterial wilt | Grass

DISEASE: Bacterial wilt

HOST: Grass (Agrostis stolonifera)

PATHOGEN: Xanthomonas translucens pv. poae

SOURCE: D. Roberts

DISEASE: Bacterial wilt

HOST: Grass

Irregular disease patterns on golf green. The cultivars Toronto, Cohansey, and Nimisilia are primary hosts of the disease.

Bacterial wilt | Grass

DISEASE: Bacterial wilt

HOST: Grass (Agrostis stolonifera)

PATHOGEN: Xanthomonas translucens pv. poae

SOURCE: D. Roberts