Answer: First of all, sanitation can go a long way toward preventing reinfection from year to year. Make sure to rake up all the fallen leaves from the tree and clean up any prunings or dropped twigs or branches. Dispose of these in the trash. Second, I would strongly suggest you work with your local county extension to identify the specific pest and disease problems that have affected your tree. Based on knowing that, together you can devise an appopriate preventive spray program. It is very important to use the appropriate spray and also to apply it at the correct time of year in order to gain maximum effectiveness. Since some sprays are best applied in late winter or very early spring, it is important to plan ahead. Good luck with your apple crop next year!
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