RESULTS

(6)

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 leaf spot and blight

HOST: Fern

Leaf with small lesions that coalesced into large, reddish brown necrotic area.

Bacterial leaf spot and blight | Fern

DISEASE: Bacterial leaf spot and blight

HOST: Fern (Asplenium nidus)

PATHOGEN: Burkholderia gladioli pv. gladioli

PATHOGEN SYNONYM: Pseudomonas gladioli pv. gladioli

SOURCE: APS

DISEASE: Bacterial leaf spot

HOST: Fern

Leaf with large, dark, longitudinal necrotic areas that differ from symptoms normally described for this disease.

Bacterial leaf spot | Fern

DISEASE: Bacterial leaf spot

HOST: Fern (Asplenium nidus)

PATHOGEN: Pseudomonas asplenii

SOURCE: R. Raabe

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