Fig. 6From: Isolation and characterization of three bacteriophages infecting Erwinia amylovora and their potential as biological control agentMorphology of plaques of Erwinia amylovora from single plaque isolation. Plaques are clear, circular as pin point in EAP1, clear in center, circular with halo zone 2Â mm in diameter in EAP 2 and EAP3 is clear, circular with about 0.5Â mm in diameterBack to article page