RESULTS

(6)

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DISEASE: Bacterial leaf scorch

HOST: Sycamore

Sycamore with scorched leaves and dieback of small branches.

Bacterial leaf scorch | Sycamore

DISEASE: Bacterial leaf scorch

HOST: Sycamore (Platanus occidentalis)

PATHOGEN: Xylella fastidiosa

SOURCE: W. Sinclair

DISEASE: Bacterial leaf scorch

HOST: Sycamore

Close-up of scorched leaves.

Bacterial leaf scorch | Sycamore

DISEASE: Bacterial leaf scorch

HOST: Sycamore (Platanus occidentalis)

PATHOGEN: Xylella fastidiosa

SOURCE: W. Sinclair

DISEASE: Bacterial leaf spot (Head rot)

HOST: Cauliflower

Leaves with tiny lesions surrounded by large halos.

Bacterial leaf spot (Head rot) | Cauliflower

DISEASE: Bacterial leaf spot (Head rot)

HOST: Cauliflower (Brassica oleracea var. botrytis)

PATHOGEN: Pseudomonas syringae pv. maculicola

SOURCE: R. Campbell

DISEASE: Bacterial leaf spot (Head rot)

HOST: Cauliflower

Section of a cauliflower head with discolored, infected tissues.

Bacterial leaf spot (Head rot) | Cauliflower

DISEASE: Bacterial leaf spot (Head rot)

HOST: Cauliflower (Brassica oleracea var. botrytis)

PATHOGEN: Pseudomonas syringae pv. maculicola

SOURCE: R. Campbell

DISEASE: Bacterial leaf streak and stripe

HOST: Grass

Vasey grass with yellowish to brownish red streaks and stripes.

Bacterial leaf streak and stripe | Grass

DISEASE: Bacterial leaf streak and stripe

HOST: Grass (Paspalum urvillei)

PATHOGEN: Acidovorax avenae

PATHOGEN SYNONYM: Acidovorax avenae subsp. avenae

SOURCE: R. Gitaitis

DISEASE: Black rot

HOST: Cauliflower

Brown, necrotic, rotted areas on flower parts and typical V-shaped necrotic areas on leaf margins.

Black rot | Cauliflower

DISEASE: Black rot

HOST: Cauliflower (Brassica oleracea var. botrytis)

PATHOGEN: Xanthomonas campestris pv. campestris

SOURCE: B. Jacobsen, M. Shurtleff