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RESULTS

(6)

DISEASE: Bacterial foot rot

HOST: Rice

The disease causes sheaths to turn dark brown and rot; dead leaves droop. Nodes, culms, and crowns also decay, and infected tillers are easily detached from the crown. Culms and internodes turn black.

DISEASE: Bacterial foot rot

HOST: Rice

Decayed culms (right) and healthy culms (left). Leaf sheaths of infected plants exhibit dark brown decay and attached leaves turn yellow and wilt.

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: Maize bushy stunt

HOST: Corn (Maize)

Maize with chlorotic leaf margins and reddening of tips and margins of older leaves.

DISEASE: Maize bushy stunt

HOST: Corn (Maize)

Late stage of disease.

DISEASE: Maize bushy stunt

HOST: Corn (Maize)

Dalbulus maidis, leafhopper vector of 'Candidatus Phytoplasma asteris', the cause of maize bushy stunt.