I have a fruit cocktail tree, its about 2 years old. Produced maybe 10 fruits its first year and then suffered from what I believe to be leaf spot and lost almost all of its leaves. I treated with Bonide Fruit Tree Spray (the hose attachment version) and it recovered before the end of the season but didn't produce any more fruit. This year, the tree has been doing very well and is producing probably 30 or 40 fruits. I have noticed that the same problem as last year (potential leaf spot) is happening again. I treated it at the first sign of black spots on some of the leaves. That was a few weeks ago and the issue has progressed significantly and it has been losing more and more leaves every day. The fruit is still growing but I'm trying to get ahead of this problem. Any suggestions? Should I continue to treat with the fruit tree spray and just be patient?