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RESULTS

(16)

DISEASE: Bacterial speck

HOST: Tomato

Leaf with typical brown to black lesions without halos, an early stage of disease.

DISEASE: Bacterial speck

HOST: Tomato

Leaves with spots, some surrounded by chlorotic zones.

DISEASE: Bacterial speck

HOST: Tomato

Curling leaves with large, blackish lesions. Later, yellowing occurs around lesions.

DISEASE: Bacterial speck

HOST: Tomato

Infection of flowers, peduncles, and stems.

DISEASE: Bacterial speck

HOST: Tomato

Field view of severely diseased plants.

DISEASE: Bacterial speck

HOST: Tomato

Green fruit with small, sunken, black lesions. Raised centers are surrounded by dark green halos.

DISEASE: Bacterial speck

HOST: Tomato

Ripe fruit with raised lesions.

DISEASE: Bois noir disease

HOST: Grape

Severe symptoms of triangular-trapezoid-shaped leaves with desiccated appearance.

DISEASE: Bois noir disease

HOST: Grape

Leaves with disease symptoms identical to flavescence doree, a yellows disease caused by a different phytoplasma. The latter has a slightly different host range and is transmitted by a leafhopper.