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RESULTS

(16)

DISEASE: Angular leaf spot

HOST: Tobacco

Leaf with light brown, angular spots. The difference between this disease and wildfire of tobacco is that wildfire is caused by a strain that produces tabtoxin. It causes conspicuous halos around lesions and large parts of a leaf may turn yellow .

DISEASE: Angular leaf spot

HOST: Tobacco

Yellowing of adjacent tissues occur as spots age (midseason). It causes conspicuous halos around lesions. Large parts of a leaf may turn yellow.

DISEASE: Angular leaf spot

HOST: Tobacco

Severely diseased leaf with extensive yellowing.

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.