RESULTS

(6)

FILTER

DISEASE: Bacterial brown rot

HOST: Orchid

Phalaenopsis orchid with yellowish brown spot on leaf (left), an early stage of disease.

Bacterial brown rot | Orchid

DISEASE: Bacterial brown rot

HOST: Orchid (Phalaenopsis sp.)

PATHOGEN: Acidovorax cattleyae

PATHOGEN SYNONYM: Acidovorax avenae subsp. cattleyae

SOURCE: R. McMillan

DISEASE: Bacterial brown rot

HOST: Orchid

Leaves of Phalaenopsis orchid with advanced stage of decay.

Bacterial brown rot | Orchid

DISEASE: Bacterial brown rot

HOST: Orchid (Phalaenopsis sp.)

PATHOGEN: Acidovorax cattleyae

PATHOGEN SYNONYM: Acidovorax avenae subsp. cattleyae

SOURCE: R. McMillan

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

DISEASE: Phony disease (Phony peach)

HOST: Peach

Tree with characteristic reduced growth. Foliage is dark green, then turns yellowish. Twigs become brittle and branches die back. Fruit are small.

Phony disease (Phony peach) | Peach

DISEASE: Phony disease (Phony peach)

HOST: Peach (Prunus persica)

PATHOGEN: Xylella fastidiosa

SOURCE: P. C. Anderson

DISEASE: Phony disease (Phony peach)

HOST: Peach

Twigs on diseased trees have shortened internodes and increased lateral branching.

Phony disease (Phony peach) | Peach

DISEASE: Phony disease (Phony peach)

HOST: Peach (Prunus persica)

PATHOGEN: Xylella fastidiosa

SOURCE: M. Davis