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RESULTS

(10)

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: Phytoplasma disease

HOST: Armeria

Phytoplasma-infected armeria (left and right) compared with healthy plant (center).

DISEASE: Phytoplasma disease

HOST: Daffodil

Phytoplasma disease of daffodil. Healthy (right).

DISEASE: Phytoplasma disease

HOST: Gayfeather

Gayfeather with phyllody of flowers.

DISEASE: Phytoplasma disease

HOST: Stock

The disease causes malformation and arrested development of flowers.

DISEASE: Tomato big bud

HOST: Tomato

Characteristic symptoms are swollen, apical stems and stunted leaves. Apical stems are generally thickened and assume a stiff and erect growth habit. Internodes are shortened and flower buds are greatly enlarged.

DISEASE: Tomato big bud

HOST: Tomato

Symptoms are enlarge sepals that do not separate. Flower buds stay green and do not develop into fruit. Leaves are small and chlorotic.

DISEASE: Tomato big bud

HOST: Tomato

Abnormal flower bud with greatly enlarged sepals. Sepals do not separate, fruit is not produced, and apical growth is upright.