RESULTS

(6)

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DISEASE: Bacterial blast

HOST: Pear

The bacterium infects all flower parts and may spread and kill the entire spur.

Bacterial blast | Pear

DISEASE: Bacterial blast

HOST: Pear (Pyrus communis)

PATHOGEN: Pseudomonas syringae pv. syringae

SOURCE: W. Sinclair

DISEASE: Bacterial blight (Bacterial necrosis)

HOST: Grape

Stem necrosis of grape.

Bacterial blight (Bacterial necrosis) | Grape

DISEASE: Bacterial blight (Bacterial necrosis)

HOST: Grape (Vitis vinifera)

PATHOGEN: Xylophilus ampelinus

PATHOGEN SYNONYM: Xanthomonas ampelina

SOURCE: N. Schaad

DISEASE: Bacterial blight (Bacterial necrosis)

HOST: Grape

Stem with cankers and discolored external tissues.

Bacterial blight (Bacterial necrosis) | Grape

DISEASE: Bacterial blight (Bacterial necrosis)

HOST: Grape (Vitis vinifera)

PATHOGEN: Xylophilus ampelinus

PATHOGEN SYNONYM: Xanthomonas ampelina

SOURCE: N. Schaad

DISEASE: Bacterial blight (Bacterial necrosis)

HOST: Grape

Severe infection in vineyard is noted by dead canes. Symptoms are most severe in spring; shoot blight, occasional spots on leaves, and cankers are common.

Bacterial blight (Bacterial necrosis) | Grape

DISEASE: Bacterial blight (Bacterial necrosis)

HOST: Grape (Vitis vinifera)

PATHOGEN: Xylophilus ampelinus

PATHOGEN SYNONYM: Xanthomonas ampelina

SOURCE: C. Manceau, N. Schaad

DISEASE: Bacterial blight (Bacterial necrosis)

HOST: Grape

Leaf with necrotic spots and marginal necrosis. One-sided cracking of petiole tissue is common (not shown here).

Bacterial blight (Bacterial necrosis) | Grape

DISEASE: Bacterial blight (Bacterial necrosis)

HOST: Grape (Vitis vinifera)

PATHOGEN: Xylophilus ampelinus

PATHOGEN SYNONYM: Xanthomonas ampelina

SOURCE: C. Panagopoulos

DISEASE: Red stripe (Top rot)

HOST: Sugarcane

Symptoms of disease are long, narrow, and sharply delineated red stripes. Top rot, another stage, may occur with or without red stripes.

Red stripe (Top rot) | Sugarcane

DISEASE: Red stripe (Top rot)

HOST: Sugarcane (Saccharum officinarum)

PATHOGEN: Acidovorax avenae

PATHOGEN SYNONYM: Acidovorax avenae subsp. avenae

SOURCE: APS