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: Cantaloupe
Cantaloupe field with severe destruction from bacterial wilt (left), less on right.
Bacterial wilt | Cantaloupe
DISEASE: Bacterial wilt
HOST: Cantaloupe (Cucumis melo var. cantalupensis)
PATHOGEN: Erwinia tracheiphila
SOURCE: L. Claflin
DISEASE: Bacterial wilt
HOST: Muskmelon
Severely diseased plants as noted by dying runners.
Bacterial wilt | Muskmelon
DISEASE: Bacterial wilt
HOST: Muskmelon (Cucumis melo)
PATHOGEN: Erwinia tracheiphila
SOURCE: M. Shurtleff
DISEASE: Bacterial wilt
HOST: Muskmelon
Wilt-devastated muskmelon field.
Bacterial wilt | Muskmelon
DISEASE: Bacterial wilt
HOST: Muskmelon (Cucumis melo)
PATHOGEN: Erwinia tracheiphila
SOURCE: M. Shurtleff
DISEASE: Bacterial wilt
HOST: Squash
Field with severe symptoms of wilt. Foliage often is chlorotic and leaf margins may be chlorotic and necrotic before plant death. Bacterial ooze may be seen streaming from the xylem when infected stems are cut.
Bacterial wilt | Squash
DISEASE: Bacterial wilt
HOST: Squash (Cucurbita maxima)
PATHOGEN: Erwinia tracheiphila
SOURCE: B. Jacobsen, M. Shurtleff
DISEASE: Ratoon stunt
HOST: Sugarcane
Necrotic, reddish vascular bundles in node of sliced stalk, a diagnostic symptom.
Ratoon stunt | Sugarcane
DISEASE: Ratoon stunt
HOST: Sugarcane (Saccharum officinarum)
PATHOGEN: Leifsonia xyli subsp. xyli
SOURCE: D. Teakle
DISEASE: Ratoon stunt
HOST: Sugarcane
Disease of susceptible cultivar L62-96 (right). External symptoms are characterized by stunting and poor growth.
Ratoon stunt | Sugarcane
DISEASE: Ratoon stunt
HOST: Sugarcane (Saccharum officinarum)
PATHOGEN: Leifsonia xyli subsp. xyli
SOURCE: A. Gillaspie, M. Davis