Stems within a hill showing blackleg symptoms - Claflin, Larry (My University, 1974)
Several stems within a hill exhibiting blackleg symptoms. Rarely are all stems infected.
Host/Plant: Potato (Solanum tuberosum subsp. tuberosum)
Pest/Path: Blackleg (Erwinia carotovora subsp. atroseptica)
Keywords: Potato; Blackleg; Potato Diseases; Color photographs