Ive got a 4 year old July Burbank Alberta Peach Tree that I purchased from a local nursery. Other than some modest pruning, Ive not done much in the way of annual maintenance and spraying. Two summers ago (at 2 years old) the tree was full of yummy peaches by the end of July. Last year, at three years old, things started off the same but by the middle of July I noticed the beginnings of brown rot. We salvaged what peaches we could and I did some immediate heavy pruning of infected wood. That fall I tried to be as meticulous as possible with fallen leaves and debris. Early spring this year (4 years old) I sprayed the tree with a Bonide fruit tree spray that stated it covered brown rot (tried to find a copper spray but could not). I only sprayed once. (Im in NE Missouri/zone 6). I didnt see much in the way of fruiting buds (assuming it was from last summers heavy pruining), but was suprised when fruit started forming. Shortly after I noticed lead curl starting (1st time for this tree), so I researched as best I could and figured it was too late this year to worry about it. Fortunately even to now the tree is sparsely affected by these curling leaves, but Im losing a good amount to leaves turning yellow and falling off. For the past few weeks Im also losing my peaches... There might be a dozen left on the tree, which is probably right at half of what I started with. Any advice on what is causing the yellow leaves and fruit drop? Is that a fertilizer issue? Im assuming I need to begin a regimented spray schedule, which Im assuming I start this fall/winter? Thanks for any pointers!