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RESULTS

(16)

DISEASE: Bacterial wilt

HOST: Peanut

First sign of disease is slight drooping or curling of leaves. As the plant declines, foliage turns yellow, followed by wilt and death of stems.

DISEASE: Bacterial wilt

HOST: Peanut

Advanced stage of disease with death of plants.

DISEASE: Bacterial wilt

HOST: Peanut

Vascular discoloration of taproot.

DISEASE: Lethal yellowing/scorch

HOST: Beet

Blue-green sharpshooter (Graphocephala atropunctata) transmits Xylella fastidiosa and has a large host range, including palms, grasses, and grapes.

DISEASE: Sugar beet scab

HOST: Beet

Sugar beets with brownish, erumpent scabs.

DISEASE: Yellow wilt

HOST: Beet

Symptoms of this disease are yellow leaves, wilting, and then collapse. There may be dwarfing of new leaves, yellowing of sectors, and chlorosis of veins.

DISEASE: Yellow wilt

HOST: Beet

Yellowing and dwarfing of sugar beet (left), an early stage of disease.