RESULTS

(4)

FILTER

DISEASE: Bacterial stem and rhizome rot

HOST: Iris

Iris stem and rhizome with brown, discolored, rotted portions.

Bacterial stem and rhizome rot | Iris

DISEASE: Bacterial stem and rhizome rot

HOST: Iris (Iris sp.)

PATHOGEN: Burkholderia gladioli pv. gladioli

PATHOGEN SYNONYM: Pseudomonas gladioli pv. gladioli

SOURCE: R. Raabe

DISEASE: Bacterial stem and rhizome rot

HOST: Iris

Mushy rot of stems and rhizomes are characteristic of advanced stage of the disease.

Bacterial stem and rhizome rot | Iris

DISEASE: Bacterial stem and rhizome rot

HOST: Iris (Iris sp.)

PATHOGEN: Burkholderia gladioli pv. gladioli

PATHOGEN SYNONYM: Pseudomonas gladioli pv. gladioli

SOURCE: R. Raabe

DISEASE: Bacterial wilt

HOST: Squash

Field with severe symptoms of wilt. Foliage often is chlorotic and leaf margins may be chlorotic and necrotic before plant death. Bacterial ooze may be seen streaming from the xylem when infected stems are cut.

Bacterial wilt | Squash

DISEASE: Bacterial wilt

HOST: Squash (Cucurbita maxima)

PATHOGEN: Erwinia tracheiphila

SOURCE: B. Jacobsen, M. Shurtleff

DISEASE: Halo blight

HOST: Bean

Leaf of 'Bountiful' bean with chlorotic halos, an early stage of disease. Tiny water-soaked are difficult to see.

Halo blight | Bean

DISEASE: Halo blight

HOST: Bean (Phaseolus vulgaris 'Bountiful')

PATHOGEN: Pseudomonas syringae pv. phaseolicola

PATHOGEN SYNONYM: Pseudomonas savastanoi pv. phaseolicola

SOURCE: M. Schroth