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RESULTS

(9)

DISEASE: Bacterial blight

HOST: Cassava

Leaf with angular, water-soaked, vein-delimited lesions.

DISEASE: Bacterial blight

HOST: Cassava

Cassava with angular leaf spots and yellow ooze. Symptoms include leaf spots, wilt, and dieback. The bacterium frequently invades systemically.

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: Bacterial flower stalk and leaf necrosis

HOST: Onion

Dark, rotted areas of stalk and leaves caused by systemic invasion of the pathogen.

DISEASE: Bacterial flower stalk and leaf necrosis

HOST: Onion

Gray-brown rot of onion after inoculation. Disease starts as small, water-soaked lesions that later develop into slimy, gray-brown rot. The disease progresses downward from the stalk and may rot the entire bulb.

DISEASE: Bacterial flower stalk and leaf necrosis

HOST: Onion

Leaves with necrosis and rot. The common name for this disease is the same as those used for two other diseases. Also, another common name for this disease is bacterial soft rot.

DISEASE: Bacterial soft rot

HOST: Cabbage

Rot of cabbage caused by Pseudomonas marginalis pv. marginalis. Rot caused by P. viridiflava has similar symptoms of water-soaking and blackening of cabbage heads. Both diseases occur mainly during the winter season.