Biocontrol of cypress canker by the phenazine producer Pseudomonas chlororaphis subsp. aureofaciens strain M71

► Pseudomonas chlororaphis subsp. aureofaciens strain M71 strongly reduces cypress canker development. ► The bacterium produces two phenazine compounds. ► Only PCA inhibits Seiridium cardinale growth both in vitro and in vivo. ► Strain M71 survives as epiphyte on cypress plants.