DISEASE: Bacterial ring rot
HOST: Potato
Stunted plant with withered leaves (right).

Bacterial ring rot | Potato
DISEASE: Bacterial ring rot
HOST: Potato (Solanum tuberosum)
PATHOGEN: Clavibacter michiganensis subsp. sepedonicus
SOURCE: M. Schroth
DISEASE: Bacterial ring rot
HOST: Potato
Infected leaf with advanced stage of interveinal necrosis.

Bacterial ring rot | Potato
DISEASE: Bacterial ring rot
HOST: Potato (Solanum tuberosum)
PATHOGEN: Clavibacter michiganensis subsp. sepedonicus
SOURCE: S. Thomson
DISEASE: Bacterial ring rot
HOST: Potato
Foliage symptoms are upward rolling of leaves and marginal necrosis of lower leaves.

Bacterial ring rot | Potato
DISEASE: Bacterial ring rot
HOST: Potato (Solanum tuberosum)
PATHOGEN: Clavibacter michiganensis subsp. sepedonicus
SOURCE: G. Franc
DISEASE: Bacterial ring rot
HOST: Potato
Internal and external tuber symptoms, characteristic of ring rot.

Bacterial ring rot | Potato
DISEASE: Bacterial ring rot
HOST: Potato (Solanum tuberosum)
PATHOGEN: Clavibacter michiganensis subsp. sepedonicus
SOURCE: R. Rowe
DISEASE: Bacterial ring rot
HOST: Potato
Ring rot symptoms of tuber. Note the dark ring does not always extend completely around the tuber. Tissues are wet and cheesy.

Bacterial ring rot | Potato
DISEASE: Bacterial ring rot
HOST: Potato (Solanum tuberosum)
PATHOGEN: Clavibacter michiganensis subsp. sepedonicus
SOURCE: S. Thomson
DISEASE: Bacterial ring rot
HOST: Potato
Advanced decay of vascular ring with cheesy rot. Exudation is from squeezing the tuber.

Bacterial ring rot | Potato
DISEASE: Bacterial ring rot
HOST: Potato (Solanum tuberosum)
PATHOGEN: Clavibacter michiganensis subsp. sepedonicus
SOURCE: APS
DISEASE: Bacterial ring rot
HOST: Potato
Characteristic foliar symptoms of yellowing and marginal leaf necrosis.

Bacterial ring rot | Potato
DISEASE: Bacterial ring rot
HOST: Potato (Solanum tuberosum)
PATHOGEN: Clavibacter michiganensis subsp. sepedonicus
SOURCE: D. Funk, A. Alvarez
DISEASE: Bacterial ring rot
HOST: Potato
Vascular tissues with bacterial ooze.

Bacterial ring rot | Potato
DISEASE: Bacterial ring rot
HOST: Potato (Solanum tuberosum)
PATHOGEN: Clavibacter michiganensis subsp. sepedonicus
SOURCE: D. Funk, A. Alvarez
DISEASE: Bacterial wilt and dieback
HOST: Willow
Cross sections of the characteristic "watermark stain" of diseased wood. Wilt and dieback occur as disease progresses.

Bacterial wilt and dieback | Willow
DISEASE: Bacterial wilt and dieback
HOST: Willow (Salix sp.)
PATHOGEN: Brenneria salicis
PATHOGEN SYNONYM: Erwinia salicis
SOURCE: Y. Sakamoto, M. Goto