Posted: 07/08/2014 at 14:01
Plum moth. You need to treat yourself to a pheromone trap. This does not stop the problem altogether, but it does help. If you are into spraying, when you see the moths in the trap, you know when to spray the tree.
Also helps if you give the tree a Winter Wash with insecticidal soap.
Not sure why leaves should be dying though. Could just be the weather.