RESULTS

(6)

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DISEASE: Aster yellows

HOST: Aster

Foliar symptoms of chlorosis, malformation of leaves, and phyllody.

Aster yellows | Aster

DISEASE: Aster yellows

HOST: Aster (Aster sp.)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: R. McCoy, M. Davis

DISEASE: Aster yellows

HOST: Aster

Flowers with phyllody (left and center). Healthy flower (right).

Aster yellows | Aster

DISEASE: Aster yellows

HOST: Aster (Aster sp.)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: R. McCoy, M. Davis

DISEASE: Aster yellows

HOST: Aster

Macrosteles sp., a leafhopper vector of aster yellows phytoplasma.

Aster yellows | Aster

DISEASE: Aster yellows

HOST: Aster (Aster sp.)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: J. Clark, A. Purcell, M. Davis

DISEASE: Bacterial blight

HOST: Persimmon

Diseased shoots with spots on leaves and necroses on stems.

Bacterial blight | Persimmon

DISEASE: Bacterial blight

HOST: Persimmon (Diospyros sp.)

PATHOGEN: Pseudomonas syringae

SOURCE: J. Young

DISEASE: Bacterial wilt

HOST: Muskmelon

Severely diseased plants as noted by dying runners.

Bacterial wilt | Muskmelon

DISEASE: Bacterial wilt

HOST: Muskmelon (Cucumis melo)

PATHOGEN: Erwinia tracheiphila

SOURCE: M. Shurtleff

DISEASE: Bacterial wilt

HOST: Muskmelon

Wilt-devastated muskmelon field.

Bacterial wilt | Muskmelon

DISEASE: Bacterial wilt

HOST: Muskmelon (Cucumis melo)

PATHOGEN: Erwinia tracheiphila

SOURCE: M. Shurtleff