 Number one, my oak trees had less cicadas on them than my maples or my elm. There was cicadas on them, but not nearly as many as there were on my elm and my maple. So my maples are fine. My elm is fine. My oak is the only one who's infected. Now, could it be cicadas? I guess. I'm a little shocked at the pattern, though, because it is literally every single branch and just the tip. So I'm actually leaning more towards