Fig. 1From: Apple Valsa canker: insights into pathogenesis and disease controlField symptoms of AVC. AVC caused by Vm occurs mainly on the trunks and large branches of trees. The bark surface is often wet and slightly raised; the tissues become putrid and easily split. The infected tissues gradually dry out, collapse slightly, and finally form localised cankers. If the disease is severe, branches wither and die, and trees may dieBack to article page