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RESULTS

(8)

DISEASE: Bacterial leaf spot (Blight)

HOST: Coriander

Coriander with spots and yellowing of blighted leaves.

DISEASE: Bacterial leaf spot

HOST: Cilantro

Leaves with vein-delimited, dark brown to black spots.

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.

DISEASE: Elm yellows

HOST: Elm

Elm yellows is characterized by witches'-brooms and stunting. Some cultivars have both yellow and reddish foliar discoloration.

DISEASE: Elm yellows

HOST: Elm

Late stage of elm yellows disease.

DISEASE: Halo blight

HOST: Rice

Leaves with yellowish brown lesions, 2 to 10 mm in diameter. Lesions are surrounded by distinct halos. Later, brown spots or stripes may develop in the center.