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RESULTS

(12)

DISEASE: Bacterial blight

HOST: Mulberry

Leaf with numerous small, dark brown lesions with chlorotic halos.

DISEASE: Bacterial blight

HOST: Mulberry

Foliage with small, dark lesions with large, yellowish halos.

DISEASE: Bacterial blight

HOST: Mulberry

Blighted foliage with yellowing and curling of leaves.

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: Elm yellows

HOST: Elm

Symptoms of elm yellows occasionally appear on one branch before others, but more often they involve the entire crown.

DISEASE: Elm yellows

HOST: Elm

Diseased twig (right) with epinasty, chlorosis, and yellowing of leaves. Sometimes both yellow and green leaves occur on same branch. Healthy branch (left).

DISEASE: Elm yellows

HOST: Elm

Branches with butterscotch discoloration (center) and necrotic flecks in phloem and vascular cambium (right). Healthy branch (left). Sudden wilt and browning is common with small trees.