RESULTS

(4)

FILTER

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 leaf and stem necrosis

HOST: Watermelon

Seedlings with necrotic leaves and water-soaked stems.

Bacterial leaf and stem necrosis | Watermelon

DISEASE: Bacterial leaf and stem necrosis

HOST: Watermelon (Citrullus lanatus)

PATHOGEN: Pseudomonas viridiflava

SOURCE: Y. Aysan

DISEASE: Slippery skin

HOST: Onion

Rot progresses from the top of infected scales and eventually internal tissues rot. In early stages, the only external symptoms may be softening of the neck.

Slippery skin | Onion

DISEASE: Slippery skin

HOST: Onion (Allium cepa)

PATHOGEN: Burkholderia gladioli pv. alliicola

PATHOGEN SYNONYM: Pseudomonas gladioli pv. alliicola

SOURCE: H. Schwartz