Some experiences of a similar syndrome have already been described over the past decades. Similar symptoms had been reported in South Africa in the 1960’s (Mansvelt and Hattingh,1968), and in Piedmont (North-West of Italy) in 1997 ( Scortichini and Morone, 1997). In both cases the researchers indicated Pseudomonas syringae pv. syringae van Hall as the responsible pathogen.P. syringae pv. syringae survives, as an epiphyte, during spring on leaves of several spontaneous plants without causing any symptoms. During autumn bacterial cells can reach the apple tree by passive transport (i.e. rain, wind) and start to multiply on the bark.The bacteria penetrate through natural openings (i.e. lenticels) as well as lesions and start the colonization of the plant (Scortichiniand Morone, 1997).