help! ... i have a patio peach tree planted 4-5 years ago. it has done very, very well. last year, about this time, the leaves started fading, almost as though they were sprayed with a fine white mist. i treated it, no help, leaves fell off, and i also had to do a lot of pruning. this year i was happy to see it return, with three times the number of fruit - never expected to see so much fruit on this tree. but now, it has started with the leaf fading again - i have treated twice - problem is spreading. your suggestions, or any one else, would be greatly appreciated!