Diseased Pear Tree

[essexsue]

Hi does anyone know what is wrong with my dads pear tree?? Here is a picture of a leaf - he is not sure what it is or the best way of dealing with it

any help would be gratefully received

Thanks

[essexsue]

[Robert_Brenchley]

scab? http://www.dpi.vic.gov.au/DPI/nreninf.nsf/childdocs/-71E8091F577D52D24A2568B30004F3B2-07E8C65C31CFC12CCA256BC800029303-38E0071A086D6D434A256DEA00274A23-BF7A3EF7A7838BDACA256BCF000BBECB?open

[essexsue]

Thank you  ;D

will send this to Dad.

Sue