RESULTS

(5)

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: Brown blotch

HOST: Mushroom

Black discoloration of basal portions of fruit bodies. Healthy (left).

Brown blotch | Mushroom

DISEASE: Brown blotch

HOST: Mushroom (Flammulina velutipes)

PATHOGEN: Pseudomonas tolaasii

SOURCE: K. Suyama, M. Goto

DISEASE: Brown blotch

HOST: Mushroom

Black discoloration of basal portion of fruit bodies.

Brown blotch | Mushroom

DISEASE: Brown blotch

HOST: Mushroom (Flammulina velutipes)

PATHOGEN: Pseudomonas tolaasii

SOURCE: K. Suyama, M. Goto

DISEASE: Dodonaea yellows

HOST: Florida hopbush

Hopbush with brownish red witches'-broom.

Dodonaea yellows | Florida hopbush

DISEASE: Dodonaea yellows

HOST: Florida hopbush (Dodonaea viscosa)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: W. Borth

DISEASE: Dodonaea yellows

HOST: Florida hopbush

Advanced stage of dodonaea yellows and witches'-broom.

Dodonaea yellows | Florida hopbush

DISEASE: Dodonaea yellows

HOST: Florida hopbush (Dodonaea viscosa)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: W. Borth