RESULTS

(9)

FILTER

DISEASE: Blister spot

HOST: Apple

Fruit with water-soaked spots.

Blister spot | Apple

DISEASE: Blister spot

HOST: Apple (Malus domestica)

PATHOGEN: Pseudomonas syringae pv. papulans

SOURCE: T. Burr

DISEASE: Blister spot

HOST: Apple

Water-soaked blister spots on leaves of blighted twig.

Blister spot | Apple

DISEASE: Blister spot

HOST: Apple (Malus domestica)

PATHOGEN: Pseudomonas syringae pv. papulans

SOURCE: T. Burr

DISEASE: Blister spot

HOST: Apple

Apple with brownish blister spots.

Blister spot | Apple

DISEASE: Blister spot

HOST: Apple (Malus domestica 'Mutsu')

PATHOGEN: Pseudomonas syringae pv. papulans

SOURCE: S. Thomson

DISEASE: Blister spot

HOST: Apple

Late stage of blister spot. The purplish black lesions are associated with lenticels and stomata.

Blister spot | Apple

DISEASE: Blister spot

HOST: Apple (Malus domestica 'Crispin')

PATHOGEN: Pseudomonas syringae pv. papulans

SOURCE: T. Burr

DISEASE: Larkspur virescence

HOST: Larkspur

Two diseased plants with stunted and small leaves, lack of flower coloration, and bunched flower buds. Healthy plant (left).

Larkspur virescence | Larkspur

DISEASE: Larkspur virescence

HOST: Larkspur (Delphinium sp.)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: R. Raabe

DISEASE: X-disease (Eastern X)

HOST: Chokecherry

Shot-hole stage of X-disease.

X-disease (Eastern X) | Chokecherry

DISEASE: X-disease (Eastern X)

HOST: Chokecherry (Prunus virginiana)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: W. Sinclair

DISEASE: X-disease (Eastern X)

HOST: Chokecherry

X-disease causes rosettes and premature loss of leaves.

X-disease (Eastern X) | Chokecherry

DISEASE: X-disease (Eastern X)

HOST: Chokecherry (Prunus virginiana)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: W. Sinclair

DISEASE: X-disease (Eastern X)

HOST: Chokecherry

Chokecherry with stunted shoots, red leaves, and rosettes.

X-disease (Eastern X) | Chokecherry

DISEASE: X-disease (Eastern X)

HOST: Chokecherry (Prunus virginiana)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: W. Sinclair

DISEASE: X-disease (Eastern X)

HOST: Chokecherry

Chokecherry with red leaves, rosettes, and bud loss.

X-disease (Eastern X) | Chokecherry

DISEASE: X-disease (Eastern X)

HOST: Chokecherry (Prunus virginiana)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: W. Sinclair