DISEASE: Bacterial leaf streak and bulb rot
HOST: Onion
Onion with dead and rotted leaf at base of stem. Typical symptoms are water-soaked, dark green lesions that become oval with time, along with streaks and tipburn.
Bacterial leaf streak and bulb rot | Onion
DISEASE: Bacterial leaf streak and bulb rot
HOST: Onion (Allium cepa)
PATHOGEN: Pseudomonas viridiflava
SOURCE: H. Schwartz
DISEASE: Bacterial leaf streak and bulb rot
HOST: Onion
Browning and decay of bulb following inoculation with Pseudomonas viridiflava.
Bacterial leaf streak and bulb rot | Onion
DISEASE: Bacterial leaf streak and bulb rot
HOST: Onion (Allium cepa)
PATHOGEN: Pseudomonas viridiflava
SOURCE: R. Gitaitis
DISEASE: Bacterial leaf streak and bulb rot
HOST: Onion
Close-up of diseased leaves.
Bacterial leaf streak and bulb rot | Onion
DISEASE: Bacterial leaf streak and bulb rot
HOST: Onion (Allium cepa)
PATHOGEN: Pseudomonas viridiflava
SOURCE: R. Gitaitis
DISEASE: Bacterial leaf streak and bulb rot
HOST: Onion
Bulb rot with gray, bluish symptoms. Reddish brown discolorations also may occur.
Bacterial leaf streak and bulb rot | Onion
DISEASE: Bacterial leaf streak and bulb rot
HOST: Onion (Allium cepa)
PATHOGEN: Pseudomonas viridiflava
SOURCE: R. Gitaitis
DISEASE: Bacterial pustule
HOST: Soybean
Early symptoms are minute, pale green spots on young leaves. Later, small pustules form in the center of spots, best observed on underside of leaves. Spots vary in size and darken with age and lesions coalesce. Dead areas are torn away by wind.
Bacterial pustule | Soybean
DISEASE: Bacterial pustule
HOST: Soybean (Glycine max)
PATHOGEN: Xanthomonas axonopodis pv. glycines
PATHOGEN SYNONYM: Xanthomonas campestris pv. glycines
SOURCE: APS
DISEASE: Bacterial soft rot
HOST: Onion
Soft rot infection of leaves.
Bacterial soft rot | Onion
DISEASE: Bacterial soft rot
HOST: Onion (Allium cepa)
PATHOGEN: Dickeya sp.
PATHOGEN SYNONYM: Erwinia chrysanthemi
SOURCE: S. Mohan
DISEASE: Bacterial soft rot
HOST: Onion
Onion with bulb, stem, and leaf infections.
Bacterial soft rot | Onion
DISEASE: Bacterial soft rot
HOST: Onion (Allium cepa)
PATHOGEN: Dickeya sp.
PATHOGEN SYNONYM: Erwinia chrysanthemi
SOURCE: S. Mohan
DISEASE: Bacterial soft rot
HOST: Onion
Bulb with early-season soft rot symptoms.
Bacterial soft rot | Onion
DISEASE: Bacterial soft rot
HOST: Onion (Allium cepa)
PATHOGEN: Pectobacterium carotovorum
PATHOGEN SYNONYM: Erwinia carotovora subsp. carotovora
SOURCE: H. Schwartz
DISEASE: Bacterial soft rot
HOST: Onion
Diseased leaves with bleaching and light brown discoloration.
Bacterial soft rot | Onion
DISEASE: Bacterial soft rot
HOST: Onion (Allium cepa)
PATHOGEN: Pectobacterium carotovorum
PATHOGEN SYNONYM: Erwinia carotovora subsp. carotovora
SOURCE: H. Schwartz