DISEASE: Bacterial fasciation (Shoot proliferation)
HOST: Campanula
Overproduction of new shoots and short, thickened, distorted stems.
Bacterial fasciation (Shoot proliferation) | Campanula
DISEASE: Bacterial fasciation (Shoot proliferation)
HOST: Campanula (Campanula sp.)
PATHOGEN: Rhodococcus fascians
SOURCE: M. Putnam
DISEASE: Bacterial fasciation (Shoot proliferation)
HOST: Candytuft
The disease causes production of multiple shoots.
Bacterial fasciation (Shoot proliferation) | Candytuft
DISEASE: Bacterial fasciation (Shoot proliferation)
HOST: Candytuft (Iberis sp.)
PATHOGEN: Rhodococcus fascians
SOURCE: M. Putnam
DISEASE: Bacterial leaf streak and bulb rot
HOST: Onion
The disease is characterized by dark spots on wrapper scales and/or reddish brown discoloration of inner scales.
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
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: Crown gall
HOST: Almond
Multiple galls on almond roots (left). Roots of healthy plant (right). Severe galling on young trees causes stunting.
Crown gall | Almond
DISEASE: Crown gall
HOST: Almond (Prunus dulcis)
PATHOGEN: Agrobacterium tumefaciens
PATHOGEN SYNONYM: Rhizobium sp.
SOURCE: M. Schroth
DISEASE: Crown gall
HOST: Apple
Crown gall of apple.
Crown gall | Apple
DISEASE: Crown gall
HOST: Apple (Malus domestica)
PATHOGEN: Agrobacterium tumefaciens
PATHOGEN SYNONYM: Rhizobium sp.
SOURCE: H. Sawada, M. Goto