RESULTS

(7)

FILTER

DISEASE: Bacterial fasciation (Leafy gall)

HOST: Dahlia

Dalhlia tubers with proliferation and leaf development.

Bacterial fasciation (Leafy gall) | Dahlia

DISEASE: Bacterial fasciation (Leafy gall)

HOST: Dahlia (Dahlia sp.)

PATHOGEN: Rhodococcus fascians

SOURCE: M. Shurtleff

DISEASE: Bacterial fasciation (Leafy gall)

HOST: Dahlia

Bacterial fasciation of dahlia tubers.

Bacterial fasciation (Leafy gall) | Dahlia

DISEASE: Bacterial fasciation (Leafy gall)

HOST: Dahlia (Dahlia sp.)

PATHOGEN: Rhodococcus fascians

SOURCE: H. van Hoof, M. Geesteranus

DISEASE: Bacterial leaf blight and rot

HOST: Orchid

Orchid hybrid (Odontoglossum × Memoria Martin Orenstein 'Lulu') with large, brown, infected area on leaves with water-soaking at margin between healthy and diseased tissues.

Bacterial leaf blight and rot | Orchid

DISEASE: Bacterial leaf blight and rot

HOST: Orchid (Odontoglossum sp.)

PATHOGEN: Burkholderia gladioli pv. gladioli

PATHOGEN SYNONYM: Pseudomonas gladioli pv. gladioli

SOURCE: L. Keith

DISEASE: Bacterial rot

HOST: Dahlia

Longitudinal section of dahlia with discolored, rotted tissues.

Bacterial rot | Dahlia

DISEASE: Bacterial rot

HOST: Dahlia (Dahlia sp.)

PATHOGEN: Dickeya sp.

PATHOGEN SYNONYM: Erwinia chrysanthemi

SOURCE: J. Young

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: Crown gall

HOST: Dahlia

Crown gall of dahlia tubers. Note brownish, rough-surfaced galls, one of which shows rot. Galls often are infected by microorganisms that cause rot.

Crown gall | Dahlia

DISEASE: Crown gall

HOST: Dahlia (Dahlia sp.)

PATHOGEN: Agrobacterium tumefaciens

PATHOGEN SYNONYM: Rhizobium sp.

SOURCE: M. Shurtleff