RESULTS

(3)

FILTER

DISEASE: Aster yellows

HOST: Squash

Diagnostic characteristics for the disease are yellowing of young leaves, proliferation of secondary shoots, and rigid erect habit. Leaves are misshapen and smaller than normal and have stiff, thick laminae.

Aster yellows | Squash

DISEASE: Aster yellows

HOST: Squash (Cucurbita sp.)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: S. Miller

DISEASE: Bacterial canker (Leaf spot)

HOST: Mume (Japanese apricot)

Leaves with spots surrounded by yellow halos.

Bacterial canker (Leaf spot) | Mume (Japanese apricot)

DISEASE: Bacterial canker (Leaf spot)

HOST: Mume (Japanese apricot) (Prunus mume)

PATHOGEN: Pseudomonas syringae pv. morsprunorum

SOURCE: M. Goto

DISEASE: Bacterial canker and blast

HOST: Apricot

Apricot with typical reddish brown-discolored tissues beneath the bark and gumming around infected areas.

Bacterial canker and blast | Apricot

DISEASE: Bacterial canker and blast

HOST: Apricot (Prunus armeniaca)

PATHOGEN: Pseudomonas syringae pv. syringae

SOURCE: S. Sampson, M. Shurtleff