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RESULTS

(10)

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: Gypsophila gall

HOST: Gypsophila (Baby's breath)

Gall on gypsophila stem.

DISEASE: Gypsophila gall

HOST: Gypsophila (Baby's breath)

Gall 1 month after inoculation of stem.

DISEASE: Gypsophila gall

HOST: Gypsophila (Baby's breath)

Brown gall on crown of gypsophila.

DISEASE: Gypsophila gall

HOST: Gypsophila (Baby's breath)

Galls (left) caused by Pantoea agglomerans pv. agglomerans tend to be brownish, and those (right) caused by P. agglomerans pv. betae are white.

DISEASE: Olive knot

HOST: Olive

Multiple infections of young stems. The bacterium invades vascular tissues during certain times of the year and may be isolated from branches that appear healthy.

DISEASE: Olive knot

HOST: Olive

Tree with knots/galls on branches along with twig dieback, which is associated with knots. Fusarium and Diplodia spp. infect through knots and are thought to be main reason for dieback.