RESULTS

(9)

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DISEASE: Bacterial blight (Angular leaf spot)

HOST: Cotton

Leaf with advanced stage of blight.

Bacterial blight (Angular leaf spot) | Cotton

DISEASE: Bacterial blight (Angular leaf spot)

HOST: Cotton (Gossypium barbadense)

PATHOGEN: Xanthomonas citri subsp. malvacearum

PATHOGEN SYNONYM: Xanthomonas campestris pv. malvacearum

SOURCE: M. Shurtleff

DISEASE: Bacterial blight (Angular leaf spot)

HOST: Cotton

Highly susceptible (left) and resistant (right) cotton cultivars. The black arm stage of the disease is the most serious and occurs when bacteria invade petioles and then stems.

Bacterial blight (Angular leaf spot) | Cotton

DISEASE: Bacterial blight (Angular leaf spot)

HOST: Cotton (Gossypium barbadense)

PATHOGEN: Xanthomonas citri subsp. malvacearum

PATHOGEN SYNONYM: Xanthomonas campestris pv. malvacearum

SOURCE: APS

DISEASE: Bacterial blight (Angular leaf spot)

HOST: Cotton

Characteristic early symptoms are water-soaked leaf spots and water-soaking along veins.

Bacterial blight (Angular leaf spot) | Cotton

DISEASE: Bacterial blight (Angular leaf spot)

HOST: Cotton (Gossypium barbadense)

PATHOGEN: Xanthomonas citri subsp. malvacearum

PATHOGEN SYNONYM: Xanthomonas campestris pv. malvacearum

SOURCE: A. Hayward

DISEASE: Bacterial blight (Angular leaf spot)

HOST: Cotton

Leaf with dark, angular leaf spots. Systemic invasion causes blackening of midribs.

Bacterial blight (Angular leaf spot) | Cotton

DISEASE: Bacterial blight (Angular leaf spot)

HOST: Cotton (Gossypium barbadense)

PATHOGEN: Xanthomonas citri subsp. malvacearum

PATHOGEN SYNONYM: Xanthomonas campestris pv. malvacearum

SOURCE: APS

DISEASE: Bacterial vascular necrosis and rot

HOST: Beet

Cross section of sugar beet with reddish color in vascular bundles and adjacent tissues.

Bacterial vascular necrosis and rot | Beet

DISEASE: Bacterial vascular necrosis and rot

HOST: Beet (Beta vulgaris)

PATHOGEN: Pectobacterium betavasculorum

PATHOGEN SYNONYM: Erwinia carotovora subsp. betavasculorum

SOURCE: M. Schroth

DISEASE: Bacterial vascular necrosis and rot

HOST: Beet

Advanced stage of disease with extensive rot.

Bacterial vascular necrosis and rot | Beet

DISEASE: Bacterial vascular necrosis and rot

HOST: Beet (Beta vulgaris)

PATHOGEN: Pectobacterium betavasculorum

PATHOGEN SYNONYM: Erwinia carotovora subsp. betavasculorum

SOURCE: M. Schroth

DISEASE: Bacterial vascular necrosis and rot

HOST: Beet

Early stage of systemic infection of young plant noted by blackening of midribs and veins.

Bacterial vascular necrosis and rot | Beet

DISEASE: Bacterial vascular necrosis and rot

HOST: Beet (Beta vulgaris)

PATHOGEN: Pectobacterium betavasculorum

PATHOGEN SYNONYM: Erwinia carotovora subsp. betavasculorum

SOURCE: M. Schroth

DISEASE: Bacterial vascular necrosis and rot

HOST: Beet

Infected vascular bundles caused by systemic infection by the bacterium.

Bacterial vascular necrosis and rot | Beet

DISEASE: Bacterial vascular necrosis and rot

HOST: Beet (Beta vulgaris)

PATHOGEN: Pectobacterium betavasculorum

PATHOGEN SYNONYM: Erwinia carotovora subsp. betavasculorum

SOURCE: S. Thomson

DISEASE: Bacterial vascular necrosis and rot

HOST: Beet

Black discoloration of petioles resulting from systemic infection.

Bacterial vascular necrosis and rot | Beet

DISEASE: Bacterial vascular necrosis and rot

HOST: Beet (Beta vulgaris)

PATHOGEN: Pectobacterium betavasculorum

PATHOGEN SYNONYM: Erwinia carotovora subsp. betavasculorum

SOURCE: S. Thomson