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RESULTS

(9)

DISEASE: Sheath brown rot

HOST: Rice

Disease symptoms typically occur on flag leaf sheaths from booting to heading stage and also on panicles. Water-soaked lesions on glumes turn light brown.

DISEASE: Sheath brown rot

HOST: Rice

Close-up of stem lesions.

DISEASE: Sheath brown rot

HOST: Rice

Seedling with rot symptoms.

DISEASE: Sheath brown rot

HOST: Rice

Diseased, unhulled grains with brown discoloration. Healthy grain (left).

DISEASE: Stewart's wilt

HOST: Corn (Maize)

Wilted seedlings resulting from systemic invasion.

DISEASE: Stewart's wilt

HOST: Corn (Maize)

Leaf blight is the dominant symptom of this disease. Lesions begin as gray-green to yellow in color and turn brown in time.

DISEASE: Stewart's wilt

HOST: Corn (Maize)

Flea beetle and scars caused by feeding damage. The beetle is a vector and is an overwintering site for the bacterium.

DISEASE: Stewart's wilt

HOST: Corn (Maize)

Young wilted plant with pale green and yellow streaks on leaves.

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.