I am not a bona fide expert, but it looks more like Tubakia to me. The difference to me is the spotting. I associate anthracnose with more irregular shaped spots that each grow into a large necrotic aea, and more likely developing in spring/summer. I associate Tubakia with regularly shaped circular spots that coaslesce with other spots to forma a large necrotic area, and more likely developing in summer/fall. In either case, the outcomes and remedies are generally the same.