RESULTS

(5)

FILTER

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 spot

HOST: Snapdragon

Leaves with large necrotic areas with brownish centers and purplish margins. Lesions are slightly sunken.

Bacterial leaf spot | Snapdragon

DISEASE: Bacterial leaf spot

HOST: Snapdragon (Antirrhinum majus)

PATHOGEN: Pseudomonas syringae pv. antirrhini

SOURCE: R. Raabe

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

DISEASE: Elm yellows

HOST: Elm

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

Elm yellows | Elm

DISEASE: Elm yellows

HOST: Elm (Ulmus parvifolia)

PATHOGEN: 'Candidatus Phytoplasma ulmi'

PATHOGEN SYNONYM: Phytoplasma Elm yellows group

SOURCE: W. Sinclair