As a home gardener I have planted many fruit trees in my yard over the years. Anyone with peach, nectarines or other similiar fruit trees has probably noted that curl it has become particularly fierce in the last couple years due to weather. What was once my very high producer has been reduced significantly to maybe a white bucket of fruit. Last year I quickly added a handful of nitrogen (Sulfate of Ammonia) to the soil after I saw almost 50% of the new leaves hit the ground, many new leaves came back but the fruit was lost. I have researched the use of copper fungicide to beat this back but question is, when is the best time to use copper fungicide in the fall, I understand spring just prior to bud burst and rain spoils whole process? I have read of Bordeaux mixture(Copper and Lime) but see that as a mostly commercial solution. My leaves are very willing to "shake" off the tree at the moment, is it time to shake, clean up leaves, spray. Should I prune tiny branches that appear dead? Any info or success stories?