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RESULTS

(9)

DISEASE: Bacterial leaf stripe

HOST: Millet

Leaf with long reddish stripes, usually vein delimited.

DISEASE: Bacterial leaf stripe

HOST: Millet

Leaf with reddish stripes delimited by veins.

DISEASE: Bacterial leaf stripe

HOST: Sorghum

Diseased leaf with linear, interveinal stripes that are purplish red. They also can be yellow, tan, or purple depending upon host reaction.

DISEASE: Bacterial leaf stripe

HOST: Sorghum

Leaf with reddish brown stripes between veins.

DISEASE: Bacterial leaf stripe

HOST: Sorghum

Highly susceptible cultivar with severe symptoms.

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.

DISEASE: Olive knot

HOST: Olive

Multiple infections on olive branch. Knots at this stage begin to die from the outside in and are infected by several fungi.

DISEASE: Strawberry lethal decline

HOST: Strawberry

Diseased plant with bronzing of older leaves and upward rolling or cupping of younger leaves. Leaves are chlorotic on upper surfaces and reddish or purplish on lower surfaces. In time, the entire plant dies.