RESULTS

(9)

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DISEASE: Gypsophila gall

HOST: Gypsophila (Baby's breath)

Gall on gypsophila stem.

Gypsophila gall | Gypsophila (Baby's breath)

DISEASE: Gypsophila gall

HOST: Gypsophila (Baby's breath) (Gypsophila elegans)

PATHOGEN: Pantoea agglomerans pv. agglomerans

SOURCE: S. Manulis

DISEASE: Gypsophila gall

HOST: Gypsophila (Baby's breath)

Gall 1 month after inoculation of stem.

Gypsophila gall | Gypsophila (Baby's breath)

DISEASE: Gypsophila gall

HOST: Gypsophila (Baby's breath) (Gypsophila elegans)

PATHOGEN: Pantoea agglomerans pv. agglomerans

SOURCE: S. Manulis

DISEASE: Gypsophila gall

HOST: Gypsophila (Baby's breath)

Brown gall on crown of gypsophila.

Gypsophila gall | Gypsophila (Baby's breath)

DISEASE: Gypsophila gall

HOST: Gypsophila (Baby's breath) (Gypsophila elegans)

PATHOGEN: Pantoea agglomerans pv. agglomerans

SOURCE: S. Manulis

DISEASE: Gypsophila gall

HOST: Gypsophila (Baby's breath)

Galls (left) caused by Pantoea agglomerans pv. agglomerans tend to be brownish, and those (right) caused by P. agglomerans pv. betae are white.

Gypsophila gall | Gypsophila (Baby's breath)

DISEASE: Gypsophila gall

HOST: Gypsophila (Baby's breath) (Gypsophila elegans)

PATHOGEN: Pantoea agglomerans pv. agglomerans

SOURCE: S. Manulis

DISEASE: Rugose leaf curl

HOST: Clover

Two rugose, distorted white clover leaves and a healthy leaf. Rugose leaf curl is caused by an unidentified phloem-infecting bacterium.

Rugose leaf curl | Clover

DISEASE: Rugose leaf curl

HOST: Clover (Trifolium repens)

PATHOGEN: Phloem-infecting bacterium

SOURCE: D. Teakle

DISEASE: X-disease (Western X) or buckskin

HOST: Cherry

Comparison of normal, dark cherries (in hand) with infected, immature cherries with less pigmentation.

X-disease (Western X) or buckskin | Cherry

DISEASE: X-disease (Western X) or buckskin

HOST: Cherry (Prunus avium)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: A. Purcell, M. Davis

DISEASE: X-disease (Western X) or buckskin

HOST: Cherry

Healthy cherry shoot (left) and stunted shoot (right).

X-disease (Western X) or buckskin | Cherry

DISEASE: X-disease (Western X) or buckskin

HOST: Cherry (Prunus avium)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: S. Thomson

DISEASE: X-disease (Western X) or buckskin

HOST: Cherry

Infected trees on 'Mazzard' rootstock (right) may live for years, producing fruit with symptoms. Trees on 'Mahaleb' rootstock (left) usually die rapidly in year of infection, about time of fruit ripening.

X-disease (Western X) or buckskin | Cherry

DISEASE: X-disease (Western X) or buckskin

HOST: Cherry (Prunus avium)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: S. Thomson

DISEASE: X-disease (Western X) or buckskin

HOST: Cherry

X-disease causes undersized, yellowish fruit. Diseased branches turn rusty red near end of season. Some defoliation occurs on diseased branches.

X-disease (Western X) or buckskin | Cherry

DISEASE: X-disease (Western X) or buckskin

HOST: Cherry (Prunus cerasus)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: A. Jones