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RESULTS

(9)

DISEASE: Bacterial leaf streak and bulb rot

HOST: Onion

The disease is characterized by dark spots on wrapper scales and/or reddish brown discoloration of inner scales.

DISEASE: Bacterial leaf streak and bulb rot

HOST: Onion

Onion with dead and rotted leaf at base of stem. Typical symptoms are water-soaked, dark green lesions that become oval with time, along with streaks and tipburn.

DISEASE: Bacterial leaf streak and bulb rot

HOST: Onion

Browning and decay of bulb following inoculation with Pseudomonas viridiflava.

DISEASE: Bacterial leaf streak and bulb rot

HOST: Onion

Close-up of diseased leaves.

DISEASE: Bacterial leaf streak and bulb rot

HOST: Onion

Bulb rot with gray, bluish symptoms. Reddish brown discolorations also may occur.

DISEASE: Common scab (Potato scab)

HOST: Potato

Symptoms of common scab vary depending upon the cultivar. The lesions can be shallow or deep, erumpent and corky, and vary in color.

DISEASE: Common scab (Potato scab)

HOST: Potato

White-skinned tuber with sunken and superficial scab lesions.

DISEASE: Common scab (Potato scab)

HOST: Potato

Red-skinned tuber with lesions that usually penetrate less than 1 mm.

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.