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RESULTS

(8)

DISEASE: Bacterial leaf spot (Head rot)

HOST: Lettuce

Leaf with black, greasy spots that tend to be vein delimited. Lesions begin as small, angular, water-soaked lesions that coalesce, resulting in large necrotic areas.

DISEASE: Bacterial seedling blight

HOST: Rice

Brown, desiccated seedlings in nursery exhibiting basal chlorosis and withering of second and third leaves.

DISEASE: Bacterial seedling blight

HOST: Rice

Dead seedlings in half of nursery tray. Symptoms are basal chlorosis and withering of second and third leaves. Infected seedlings become reddish brown and desiccated in time.

DISEASE: Bacterial seedling blight

HOST: Rice

Basal chlorosis and withering of second and third leaves. Seedlings become reddish brown with a dry appearance over time. Root growth is retarded and seedlings easily lodge.

DISEASE: Blood disease

HOST: Banana

Yellow leaves of dying plant.

DISEASE: Blood disease

HOST: Banana

Cross sections of diseased fruit with reddish discoloration and bacterial ooze.

DISEASE: Blood disease

HOST: Banana

Longitudinal sections (right) exposing reddish brown discoloration of infected fruit.

DISEASE: Blood disease

HOST: Banana

Diseased plant with wilt and yellowing of leaves. The disease occurs in Indonesia and is characterized by bright red discoloration of vascular tissues. It is caused by strains in the Ralstonia solanacearum species complex.