RESULTS

(8)

FILTER

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: Bacterial scab

HOST: Beet

Bacterial scab of table beet.

Bacterial scab | Beet

DISEASE: Bacterial scab

HOST: Beet (Beta vulgaris var. conditiva)

PATHOGEN: Pantoea agglomerans pv. betae

SOURCE: T. Burr

DISEASE: Bacterial scab

HOST: Gladiolus

Gladiolus bulb with brownish to dark brown, sunken scabs.

Bacterial scab | Gladiolus

DISEASE: Bacterial scab

HOST: Gladiolus (Gladiolus sp.)

PATHOGEN: Burkholderia gladioli pv. gladioli

PATHOGEN SYNONYM: Pseudomonas gladioli pv. gladioli

SOURCE: Plant Protection Service of the Netherlands

DISEASE: Elm yellows

HOST: Elm

Symptoms of elm yellows occasionally appear on one branch before others, but more often they involve the entire crown.

Elm yellows | Elm

DISEASE: Elm yellows

HOST: Elm (Ulmus americana)

PATHOGEN: 'Candidatus Phytoplasma ulmi'

PATHOGEN SYNONYM: Phytoplasma Elm yellows group

SOURCE: W. Sinclair

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).

Elm yellows | Elm

DISEASE: Elm yellows

HOST: Elm (Ulmus americana)

PATHOGEN: 'Candidatus Phytoplasma ulmi'

PATHOGEN SYNONYM: Phytoplasma Elm yellows group

SOURCE: W. Sinclair

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.

Elm yellows | Elm

DISEASE: Elm yellows

HOST: Elm (Ulmus americana)

PATHOGEN: 'Candidatus Phytoplasma ulmi'

PATHOGEN SYNONYM: Phytoplasma Elm yellows group

SOURCE: W. Sinclair

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

DISEASE: Elm yellows

HOST: Elm

Late stage of elm yellows disease.

Elm yellows | Elm

DISEASE: Elm yellows

HOST: Elm (Ulmus rubra)

PATHOGEN: 'Candidatus Phytoplasma ulmi'

PATHOGEN SYNONYM: Phytoplasma Elm yellows group

SOURCE: W. Sinclair