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RESULTS

(10)

DISEASE: Bacterial seedling blight

HOST: Rice

Dead and light brown, infected seedlings in nursery tray.

DISEASE: Bacterial seedling blight

HOST: Rice

Brown, desiccated seedlings in nursery exhibiting basal chlorosis and withering of second and third leaves.

DISEASE: Bacterial seedling blight

HOST: Rice

Dead seedlings in half of nursery tray. Symptoms are basal chlorosis and withering of second and third leaves. Infected seedlings become reddish brown and desiccated in time.

DISEASE: Bacterial seedling blight

HOST: Rice

Basal chlorosis and withering of second and third leaves. Seedlings become reddish brown with a dry appearance over time. Root growth is retarded and seedlings easily lodge.

DISEASE: Carrot yellows

HOST: Carrot

Flowers with shoot proliferation (witches’-broom) (left). Healthy flower (right). Virescence and phyllody of flower parts are common.

DISEASE: Carrot yellows

HOST: Carrot

Carrot with proliferation of roots. Initial symptoms include yellowing and narrowing of veins of young leaves. The entire leaf later becomes necrotic.

DISEASE: Citrus stubborn disease

HOST: Citrus (sp. unknown)

Characteristic symptoms of thickened peel at peduncle end and aborted seeds.

DISEASE: Citrus stubborn disease

HOST: Citrus (Orange)

Severely stunted sweet orange tree. Foliage is dense and abnormally upright. Leaves may be cupped and unusually thick. They also may be chlorotic and mottled.

DISEASE: Citrus stubborn disease

HOST: Citrus (Orange)

Fruit from a diseased tree are frequently lopsided or acorn-shaped, usually few and small. They may not color at stem end.