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RESULTS

(12)

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 leaf spot (Head rot)

HOST: Lettuce

Leaf with black, greasy spots that tend to be vein delimited. Lesions begin as small, angular, water-soaked lesions that coalesce, resulting in large necrotic areas.

DISEASE: Xanthomonas leaf blight

HOST: Onion

This was the first photo of onion leaf blight, which was considered a controversial finding for 10 years until an outbreak occurred in the West Indies.

DISEASE: Xanthomonas leaf blight

HOST: Onion

Diseased leaf with necrotic internal tissues.