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RESULTS

(16)

DISEASE: Ash yellows

HOST: Ash

Ash sapling with basal sprouts and chlorotic leaves.

DISEASE: Ash yellows

HOST: Ash

Witches'-broom at base of declining tree.

DISEASE: Ash yellows

HOST: Ash

Forest of declining trees, some chlorotic and others with dieback.

DISEASE: Ash yellows

HOST: Ash

White ash with deliquescent branching.

DISEASE: Bacterial blight

HOST: Hazelnut

Diseased young tree with discoloration of the cambium. Dieback of young twigs and branches is characteristic. Other typical symptoms are bud and twig necrosis and small, angular or round, water-soaked leaf spots.

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: Bacterial stalk and top rot

HOST: Corn (Maize)

Corn at intermediate stage of disease development.

DISEASE: Bacterial stalk and top rot

HOST: Corn (Maize)

Plant with decay of growing point and stalk. Other bacterial species also cause stalk rot, including Pectobacterium carotovorum.