RESULTS

(5)

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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 leaf streak and stripe

HOST: Grass

Vasey grass with yellowish to brownish red streaks and stripes.

Bacterial leaf streak and stripe | Grass

DISEASE: Bacterial leaf streak and stripe

HOST: Grass (Paspalum urvillei)

PATHOGEN: Acidovorax avenae

PATHOGEN SYNONYM: Acidovorax avenae subsp. avenae

SOURCE: R. Gitaitis

DISEASE: Fire blight

HOST: Pluot

Fire blight cankers on major limb. Pluot is an interspecific hybrid of plum and apricot.

Fire blight | Pluot

DISEASE: Fire blight

HOST: Pluot (Prunus hybrid 'Dandy Dapple')

PATHOGEN: Erwinia amylovora

SOURCE: S. Mohan

DISEASE: Fire blight

HOST: Pluot

Dead shoot, the result of systemic infection.

Fire blight | Pluot

DISEASE: Fire blight

HOST: Pluot (Prunus hybrid 'Dandy Dapple')

PATHOGEN: Erwinia amylovora

SOURCE: S. Mohan

DISEASE: Fire blight

HOST: Pluot

Typical symptoms of fire blight-infected shoot.

Fire blight | Pluot

DISEASE: Fire blight

HOST: Pluot (Prunus hybrid 'Dandy Dapple')

PATHOGEN: Erwinia amylovora

SOURCE: S. Mohan