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RESULTS

(1006)

DISEASE: Bacterial canker

HOST: Tomato

Advanced stage of disease with reddish brown discoloration of vascular tissues (bottom). Healthy stem (top).

DISEASE: Bacterial canker

HOST: Tomato

Lesions on stems and sepals.

DISEASE: Bacterial canker

HOST: Tomato

Severe infection of calyx and internal infection of stem.

DISEASE: Bacterial canker

HOST: Tomato

Diseased tomato calyx and blossom.

DISEASE: Bacterial canker

HOST: Tomato

Fruit with bird's-eye spots and raised brownish centers surrounded by white halos.

DISEASE: Bacterial canker

HOST: Tomato

Close-up of bird's-eye spots on green fruit.

DISEASE: Bacterial canker

HOST: Tomato

Ripe tomato infected with Clavibacter michiganensis subsp. michiganensis, which causes light brown lesions surrounded by white halos, and Pseudomonas syringae pv. tomato, which causes small, black, raised lesions.

DISEASE: Bacterial decline

HOST: Papaya

Bacterial decline of papaya, historically called St. Croix decline, was thought to be caused by a fungus. This picture shows a papaya with dead top and side branches, a severe stage of the disease.

DISEASE: Bacterial decline

HOST: Papaya

Water-soaked papaya stem in St. Croix. Dark, water-soaked, greasy lesions occur on stems and leaves. The causal agent differs somewhat from descriptions of Erwinia papayae D strains in Micronesia.