RESULTS

(6)

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DISEASE: Bacterial blight (Boll rot)

HOST: Cotton

Boll rot first appears as raised, water-soaked lesions, which become sunken and turn brown to black with time.

Bacterial blight (Boll rot) | Cotton

DISEASE: Bacterial blight (Boll rot)

HOST: Cotton (Gossypium barbadense)

PATHOGEN: Xanthomonas citri subsp. malvacearum

PATHOGEN SYNONYM: Xanthomonas campestris pv. malvacearum

SOURCE: A. Hayward

DISEASE: Bacterial blight (Boll rot)

HOST: Cotton

Infection of bolls causes premature opening and increased susceptibility to secondary, saprophytic microorganisms that cause rot. Note discolored cotton.

Bacterial blight (Boll rot) | Cotton

DISEASE: Bacterial blight (Boll rot)

HOST: Cotton (Gossypium barbadense)

PATHOGEN: Xanthomonas citri subsp. malvacearum

PATHOGEN SYNONYM: Xanthomonas campestris pv. malvacearum

SOURCE: APS

DISEASE: Bacterial dieback of peach

HOST: Peach

Dark cankers on last year's twig. This leads to blighting of buds the following year.

Bacterial dieback of peach | Peach

DISEASE: Bacterial dieback of peach

HOST: Peach (Prunus persica)

PATHOGEN: Pseudomonas syringae pv. persicae

SOURCE: J. Young

DISEASE: Bacterial stem and root rot

HOST: Sweet potato

Collapse of stems and roots caused by systemic activity of the pathogen.

Bacterial stem and root rot | Sweet potato

DISEASE: Bacterial stem and root rot

HOST: Sweet potato (Ipomoea batatas)

PATHOGEN: Dickeya sp.

PATHOGEN SYNONYM: Erwinia chrysanthemi

SOURCE: N. Schaad

DISEASE: Bacterial stem and root rot

HOST: Sweet potato

Rot and collapse of stem, petioles, and leaves caused by systemic infection.

Bacterial stem and root rot | Sweet potato

DISEASE: Bacterial stem and root rot

HOST: Sweet potato (Ipomoea batatas)

PATHOGEN: Dickeya sp.

PATHOGEN SYNONYM: Erwinia chrysanthemi

SOURCE: N. Schaad

DISEASE: Bacterial stem and root rot

HOST: Sweet potato

Rot and internal discoloration of tuber.

Bacterial stem and root rot | Sweet potato

DISEASE: Bacterial stem and root rot

HOST: Sweet potato (Ipomoea batatas)

PATHOGEN: Dickeya sp.

PATHOGEN SYNONYM: Erwinia chrysanthemi

SOURCE: C. Clark