RESULTS

(5)

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DISEASE: Bacterial dieback of peach

HOST: Peach

Dark cankers on last year's twig. This leads to blighting of buds the following year.

Bacterial dieback of peach | Peach

DISEASE: Bacterial dieback of peach

HOST: Peach (Prunus persica)

PATHOGEN: Pseudomonas syringae pv. persicae

SOURCE: J. Young

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: Elm leaf scorch

HOST: Elm

Diseased tree with scorch at leaf margins.

Elm leaf scorch | Elm

DISEASE: Elm leaf scorch

HOST: Elm (Ulmus americana)

PATHOGEN: Xylella fastidiosa

SOURCE: J. Sherald, M. Shurtleff

DISEASE: Elm leaf scorch

HOST: Elm

Severely diseased tree with dieback and scorched leaves.

Elm leaf scorch | Elm

DISEASE: Elm leaf scorch

HOST: Elm (Ulmus americana)

PATHOGEN: Xylella fastidiosa

SOURCE: W. Sinclair