Bacterial canker in kiwifruit trees is caused by Pseudomonas syringae pv. actinidiae (Psa), a Gram-negative bacterial pathogen. Psa was first reported from Actinidia deliciosa (green kiwifruit) in Japan in 1984 [1]. Psa infection has been reported in all kiwifruit-growing countries, including China in 1992 [2], South Korea in 1988 [3], Italy in 1992 [4], and New Zealand in 2010 [5]. Based on toxin production and genetic diversity, Psa can be divided into three main biovars: Psa1 and Psa2 have only been reported in Japan and South Korea, respectively, while the highly virulent Psa3 has recently been reported all over the world [6, 7]. Main symptoms of bacterial canker include die back or blight on young canes, red-rusty exudation on canes or trunks in winter, and yellowish halo on leaves in spring [8, 9]. Bacteriophages are viruses that infect specific host bacteria [10]. Most bacteriophages effective against plantpathogenic bacteria belong to the Caudovirales order, composed of three families: Myoviridae, Siphoviridae, and Podoviridae [11]. Bacteriophages effective against Psa have been previously described. Frampton et al. [12] characterized 24 Psa

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