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: Greasy center
HOST: Poinsettia
Stem with dark cankers and copious ooze. Necrotic areas are greasy in appearance and eventually turn light tan to brown with a papery texture as the cuticle becomes detached.
Greasy center | Poinsettia
DISEASE: Greasy center
HOST: Poinsettia (Euphorbia pulcherrima)
PATHOGEN: Pseudomonas viridiflava
SOURCE: R. Raabe
DISEASE: Red stripe (Top rot)
HOST: Sugarcane
Symptoms of disease are long, narrow, and sharply delineated red stripes. Top rot, another stage, may occur with or without red stripes.
Red stripe (Top rot) | Sugarcane
DISEASE: Red stripe (Top rot)
HOST: Sugarcane (Saccharum officinarum)
PATHOGEN: Acidovorax avenae
PATHOGEN SYNONYM: Acidovorax avenae subsp. avenae
SOURCE: APS