RESULTS

(4)

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 blight

HOST: Parsnip

Parsnip with severe blight symptoms. There also is browning of the vascular system. Rot may progress from the crown into roots.

Bacterial blight | Parsnip

DISEASE: Bacterial blight

HOST: Parsnip (Pastinaca sativa)

PATHOGEN: Pseudomonas viridiflava

SOURCE: J. Hunter

DISEASE: Bacterial fruit blotch

HOST: Citron melon

Citron rind with fruit blotch.

Bacterial fruit blotch | Citron melon

DISEASE: Bacterial fruit blotch

HOST: Citron melon (Citrullus lanatus var. citroides)

PATHOGEN: Acidovorax citrulli

PATHOGEN SYNONYM: Acidovorax avenae subsp. citrulli

SOURCE: R. Gitaitis

DISEASE: Bacterial fruit blotch

HOST: Citron melon

Leaf infection stage of fruit blotch.

Bacterial fruit blotch | Citron melon

DISEASE: Bacterial fruit blotch

HOST: Citron melon (Citrullus lanatus var. citroides)

PATHOGEN: Acidovorax citrulli

PATHOGEN SYNONYM: Acidovorax avenae subsp. citrulli

SOURCE: R. Gitaitis