DISEASE: Bacterial leaf blight
HOST: Carrot
Blight of flower parts.
Bacterial leaf blight | Carrot
DISEASE: Bacterial leaf blight
HOST: Carrot (Daucus carota)
PATHOGEN: Xanthomonas hortorum pv. carotae
PATHOGEN SYNONYM: Xanthomonas campestris pv. carotae
SOURCE: N. Schaad
DISEASE: Bacterial leaf blight
HOST: Carrot
Leaf lesions begin as water-soaked spots that progress to small, yellow, angular spots and later expand to necrotic lesions with yellow halos.
Bacterial leaf blight | Carrot
DISEASE: Bacterial leaf blight
HOST: Carrot (Daucus carota)
PATHOGEN: Xanthomonas hortorum pv. carotae
PATHOGEN SYNONYM: Xanthomonas campestris pv. carotae
SOURCE: N. Schaad
DISEASE: Bacterial leaf blight
HOST: Carrot
Bacterial ooze on flower stalk from systemic invasion of the pathogen.
Bacterial leaf blight | Carrot
DISEASE: Bacterial leaf blight
HOST: Carrot (Daucus carota)
PATHOGEN: Xanthomonas hortorum pv. carotae
PATHOGEN SYNONYM: Xanthomonas campestris pv. carotae
SOURCE: APS
DISEASE: Goss's bacterial wilt and blight
HOST: Corn (Maize)
Wilted, dying plants. Leaves have gray to light yellow stripes and irregular margins that follow leaf veins. Systemically infected plants usually have orange vascular bundles.
Goss's bacterial wilt and blight | Corn (Maize)
DISEASE: Goss's bacterial wilt and blight
HOST: Corn (Maize) (Zea mays)
PATHOGEN: Clavibacter michiganensis subsp. nebraskensis
PATHOGEN SYNONYM: Corynebacterium nebraskense
SOURCE: A. Vidaver
DISEASE: Goss's bacterial wilt and blight
HOST: Corn (Maize)
The disease causes necrotic leaf lesions, which typically have dark flecks (freckles) within the lesions (not seen here).
Goss's bacterial wilt and blight | Corn (Maize)
DISEASE: Goss's bacterial wilt and blight
HOST: Corn (Maize) (Zea mays)
PATHOGEN: Clavibacter michiganensis subsp. nebraskensis
PATHOGEN SYNONYM: Corynebacterium nebraskense
SOURCE: A. Vidaver
DISEASE: Xanthomonas wilt
HOST: Banana
Cross sections exposing discoloration of infected fruit.
Xanthomonas wilt | Banana
DISEASE: Xanthomonas wilt
HOST: Banana (Musa × paradisiaca 'Pisang Awak')
PATHOGEN: Xanthomonas campestris pv. musacearum
PATHOGEN SYNONYM: Xanthomonas campestris
SOURCE: I. Buddenhagen
DISEASE: Xanthomonas wilt
HOST: Banana
Sliced diseased stem exposing discolored vascular tissues and bacterial ooze.
Xanthomonas wilt | Banana
DISEASE: Xanthomonas wilt
HOST: Banana (Musa × paradisiaca 'Pisang Awak')
PATHOGEN: Xanthomonas campestris pv. musacearum
PATHOGEN SYNONYM: Xanthomonas campestris
SOURCE: I. Buddenhagen
DISEASE: Xanthomonas wilt
HOST: Banana
Longitudinal sections of fruit exposing brownish red diseased tissues.
Xanthomonas wilt | Banana
DISEASE: Xanthomonas wilt
HOST: Banana (Musa × paradisiaca 'Pisang Awak')
PATHOGEN: Xanthomonas campestris pv. musacearum
PATHOGEN SYNONYM: Xanthomonas campestris
SOURCE: I. Buddenhagen
DISEASE: Xanthomonas wilt
HOST: Banana
Banana stem with discoloration of vascular bundles and bacterial ooze.
Xanthomonas wilt | Banana
DISEASE: Xanthomonas wilt
HOST: Banana (Musa × paradisiaca 'Pisang Awak')
PATHOGEN: Xanthomonas campestris pv. musacearum
PATHOGEN SYNONYM: Xanthomonas campestris
SOURCE: I. Buddenhagen