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RESULTS

(10)

DISEASE: Bacterial blight

HOST: Pea

Pea pod with diseased seeds and infection along the suture.

DISEASE: Bacterial blight

HOST: Pea

Pea plant with water-soaked lesions on stems and leaves with some bacterial exudate evident. Irregular lesions turn dark brown with light tan centers. Severe distortion of stems, petioles, and growing points may occur.

DISEASE: Bacterial blight

HOST: Pea

Dark lesions on pods and dorsal sutures.

DISEASE: Bacterial blight

HOST: Pea

Severely diseased plant with array of blight symptoms.

DISEASE: Bacterial blight

HOST: Pea

Leaves with typical blight symptoms. The disease also affects nodes, stipules, floral parts, stems, and pods.

DISEASE: Multiplier disease

HOST: Strawberry

Multiplier disease causes production of numerous crowns along runners.

DISEASE: Pink disease

HOST: Pineapple

Infected pineapple slices; effect of heating (right) and not heating (left).

DISEASE: Pink disease

HOST: Pineapple

Two clones (A and D) showing different stages of infection. Second and fourth fruits (left to right) have been heated. Disease originally attributed to Gluconobacter oxydans and Enterobacter agglomerans and later to Pantoea citrea.

DISEASE: Witches'-broom

HOST: Alfalfa

Alfalfa plant (center) exhibiting stunting and proliferation of stems. Other symptoms are small, rounded, chlorotic, often puckered leaves and a yellowish cast.