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RESULTS

(6)

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.

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.

DISEASE: Bacterial finger-tip rot

HOST: Banana

Cross sections of fruit with internal discoloration and rot. This disease is also known as Mokillo disease.

DISEASE: Bacterial finger-tip rot

HOST: Banana

Longitudinal sections of fruit with internal discoloration and rot. Healthy (right).

DISEASE: Bacterial finger-tip rot

HOST: Banana

Diseased banana hand with external discoloration.

DISEASE: Wildfire (Angular leaf spot)

HOST: Tobacco

Characteristic symptoms are necrotic, brown spots with angular margins surrounded by distinct yellow halos. The halos are caused by the production of tabtoxin.