I know it might be a long shot, but can anybody suggest what might be damaging my cherry tree leaves? I go out at various times of the day/night, but have yet to find any insects on it. The same thing has happened the last few years, getting progressively worse throughout the season, and eventually the fruit also gets damaged. The tree is only ~9 ft tall. I also cannot find any cankers or scarring on it. Our elderberry and salmonberries also seem to be suffering from the same thing. Any help is appreciated!
