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RESULTS

(9)

DISEASE: Bacterial canker and blast

HOST: Apricot

Young infected twig with droplets of bacterial ooze on stem.

DISEASE: Bacterial canker and blast

HOST: Apricot

Bacterial canker has many symptoms. Typical symptoms are brown, sometimes reddish brown, internal tissues and rough, cracked bark.

DISEASE: Bacterial canker and blast

HOST: Apricot

Infected apricot with sparse foliage (some twigs with no foliage) and a discolored area exposed where bark was removed.

DISEASE: Bacterial canker and blast

HOST: Apricot

Fruit spot phase with numerous reddish necrotic spots.

DISEASE: Bacterial spot

HOST: Apricot

Fruit with black scabs and cracks, and leaves with brown lesions, some coalescing to form large necrotic areas.

DISEASE: Bacterial wilt

HOST: Grass

Initial symptom is a lime-green, yellow, or blue-green appearance of the grass. The next symptom is small, reddish brown spots on leaf blades.

DISEASE: Bacterial wilt

HOST: Grass

Infected turf grass with patches of yellowing, wilted, and dead grass.

DISEASE: Bacterial wilt

HOST: Grass

Late stage of disease development. Dead grass has a light brown or bleached tan appearance.

DISEASE: Bacterial wilt

HOST: Squash

Field with severe symptoms of wilt. Foliage often is chlorotic and leaf margins may be chlorotic and necrotic before plant death. Bacterial ooze may be seen streaming from the xylem when infected stems are cut.