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RESULTS

(7)

DISEASE: Bacterial foot rot

HOST: Rice

The disease causes sheaths to turn dark brown and rot; dead leaves droop. Nodes, culms, and crowns also decay, and infected tillers are easily detached from the crown. Culms and internodes turn black.

DISEASE: Bacterial foot rot

HOST: Rice

Decayed culms (right) and healthy culms (left). Leaf sheaths of infected plants exhibit dark brown decay and attached leaves turn yellow and wilt.

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: 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.