Posted: 06/06/2014 at 20:19
I'd cut off the right hand side one right back to the ground.and see how it goes. I wouldn't start spraying anything for anything unless sure it's there.
It looks like 2 distinct trunks, one of which is dead, any sort of leaf pest would have had both of them.
You may find 2 completely separate plants there and could remove the dead one