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RESULTS

(9)

DISEASE: Bacterial leaf stripe

HOST: Millet

Leaf with long reddish stripes, usually vein delimited.

DISEASE: Bacterial leaf stripe

HOST: Millet

Leaf with reddish stripes delimited by veins.

DISEASE: Bacterial leaf stripe

HOST: Sorghum

Diseased leaf with linear, interveinal stripes that are purplish red. They also can be yellow, tan, or purple depending upon host reaction.

DISEASE: Bacterial leaf stripe

HOST: Sorghum

Leaf with reddish brown stripes between veins.

DISEASE: Bacterial leaf stripe

HOST: Sorghum

Highly susceptible cultivar with severe symptoms.

DISEASE: Common scab (Potato scab)

HOST: Potato

Symptoms of common scab vary depending upon the cultivar. The lesions can be shallow or deep, erumpent and corky, and vary in color.

DISEASE: Common scab (Potato scab)

HOST: Potato

White-skinned tuber with sunken and superficial scab lesions.

DISEASE: Common scab (Potato scab)

HOST: Potato

Red-skinned tuber with lesions that usually penetrate less than 1 mm.

DISEASE: Syringae leaf spot

HOST: Tomato

Leaves with brown necrotic lesions and chlorotic margins. Symptoms vary greatly among cultivars. Some have black or brown lesions with bright yellow, chlorotic areas and others do not have yellowing.