Apple Blight Problems

Hello all,

Any help with how to treat this organically would be much appreciated! We have had abnormal rain and warm weather bringing about blight and disease. I have been spraying with Monterey D747 weekly, but I am not seeing much progress. I also sprayed once with copper. 2 of the trees are Cox’s Orange Pippin, so from my understand, sulfur is not one I should use. All trees are on G.935 and G.41.

Any help IDing and finding a solution would be tremendously helpful. I am still working on getting a spray schedule down, but I was hoping I could use D747 throughout the season - I see that is not going to work.

Thanks all