RESULTS

(3)

FILTER

DISEASE: Pear decline

HOST: Pear

'Bartlett' pears were grafted onto tolerant rootstock. All trees are infected. Note yellowish, diseased branches.

Pear decline | Pear

DISEASE: Pear decline

HOST: Pear (Pyrus communis 'Bartlett')

PATHOGEN: 'Candidatus Phytoplasma pyri'

PATHOGEN SYNONYM: Phytoplasma Apple proliferation group

SOURCE: C. Smart

DISEASE: Slime flux

HOST: Elm

Although bacteria are associated with slime fluxes of many trees, the causal agents have not been identified.

Slime flux | Elm

DISEASE: Slime flux

HOST: Elm (Ulmus pumila)

PATHOGEN: Causal agent unknown

SOURCE: W. Sinclair

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