fungicide apple trees before leaf fall ?
I have about 10 3 year old apple trees that have been showing a fungal disease problem, I think. This summer I noticed that the leaves looked dull and seemed thick and leathery, now some leaves are turning black around the edges and curling. Would it be a good idea to spray a fungicide before leaf fall? Also, If anyone can help me identify the problem I would appreciate your help. Thanks, Luke