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RESULTS

(17)

DISEASE: Bacterial blast and fruit spot

HOST: Avocado

White bacterial ooze on surface of fruit. Pseudomonas strains that cause canker likely differ from those that infect fruit and leaves.

DISEASE: Bacterial blight

HOST: Persimmon

Diseased shoots with spots on leaves and necroses on stems.

DISEASE: Bacterial leaf spot

HOST: Sesame

Leaf with water-soaked lesions.

DISEASE: Cane blight

HOST: Rose

Rose with blighted necrotic cane.

DISEASE: Citrus canker

HOST: Citrus (Grapefruit)

Grapefruit with corky, raised lesions.

DISEASE: Citrus canker

HOST: Citrus (Lemon)

Lower leaf with raised, corkylike lesions surrounded by dark brown halos, one of the diagnostic symptoms of citrus canker.

DISEASE: Citrus canker

HOST: Citrus (Orange)

Leaf with leaf miner tunnels and numerous cankerlike lesions.

DISEASE: Citrus canker

HOST: Citrus (Orange)

Upper side of leaves with corky, raised lesions surrounded by yellow halos, a late stage of disease. Such infections usually are visible on lower sides of leaves first and soon after on upper sides.

DISEASE: Citrus canker

HOST: Citrus (Orange)

Yellowish halos are seen around lesions on the upper leaf surface, whereas lesions on the lower surface are more corky in appearance and have sunken centers without halos.