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RESULTS

(10)

DISEASE: Bacterial blight

HOST: Rice

Gradation in blight symptoms. The disease begins as water-soaked streaks on leaves, which increase in length and width, becoming yellow and then white.

DISEASE: Bacterial blight

HOST: Rice

Yellow leaf stripe that later turns white.

DISEASE: Bacterial blight

HOST: Rice

Infected leaves have grayish white lesions with wavy margins.

DISEASE: Bacterial blight

HOST: Rice

Gray leaf lesions typical of bacterial blight.

DISEASE: Bacterial blight

HOST: Rice

Paddy of dead seedlings with white leaves, characteristic of kresek stage of disease.

DISEASE: Bacterial blight

HOST: Rice

The disease causes rolling of leaf tips. In the acute stage, symptoms are wilting and yellowing of leaves, followed by death.

DISEASE: Bacterial pustule

HOST: Soybean

Early symptoms are minute, pale green spots on young leaves. Later, small pustules form in the center of spots, best observed on underside of leaves. Spots vary in size and darken with age and lesions coalesce. Dead areas are torn away by wind.

DISEASE: Sweet potato little leaf

HOST: Sweet potato

Infected plant (left) and healthy plant (right).

DISEASE: Witches'-broom

HOST: Citrus (Lime)

Lime tree with compact, small leaves (witches'-broom). Leaves on older brooms dry out and eventually drop, leaving dead, bare branches. There are no flowers or fruit on brooms.