RESULTS

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DISEASE: Bacterial gall

HOST: Carrot

Root with many galls of different sizes.

Bacterial gall | Carrot

DISEASE: Bacterial gall

HOST: Carrot (Daucus carota)

PATHOGEN: Rhizobacter dauci

SOURCE: H. Kuwata

DISEASE: Bacterial gall

HOST: Carrot

Galls caused from inoculation of injured roots (left two) and uninjured roots (center two). Uninjured, noninoculated root (right).

Bacterial gall | Carrot

DISEASE: Bacterial gall

HOST: Carrot (Daucus carota)

PATHOGEN: Rhizobacter dauci

SOURCE: M. Goto

DISEASE: Drippy nut disease

HOST: Oak

Ooze from young twig inoculated with Brenneria quercina.

Drippy nut disease | Oak

DISEASE: Drippy nut disease

HOST: Oak (Quercus agrifolia)

PATHOGEN: Brenneria quercina

PATHOGEN SYNONYM: Erwinia quercina

SOURCE: M. Schroth

DISEASE: Drippy nut disease

HOST: Oak

Ooze from infected acorn. Copious ooze drips from infected acorns, leaving sticky spots on objects under tree canopy. Infections are associated with insect oviposit wounds.

Drippy nut disease | Oak

DISEASE: Drippy nut disease

HOST: Oak (Quercus agrifolia)

PATHOGEN: Brenneria quercina

PATHOGEN SYNONYM: Erwinia quercina

SOURCE: M. Schroth

DISEASE: European stone fruit yellows

HOST: Almond

The disease causes yellowing and rolling of leaves (right). Leaves become thick and rough in texture. Healthy leaves (left).

European stone fruit yellows | Almond

DISEASE: European stone fruit yellows

HOST: Almond (Prunus dulcis)

PATHOGEN: 'Candidatus Phytoplasma prunorum'

PATHOGEN SYNONYM: Phytoplasma Apple proliferation group

SOURCE: E. Seemueller