I’ll let the tree fruit guys do their thing but that’s black rot (fungal infection) on your grape leaves. There is no organic control, copper has limited effectiveness. Cultural practices to limit the impact are your best bets–open up the canopy by thinning shoots, pull infected leaves. Airflow and light. Remove any old, dead wood or clusters on or under the vine.
I saw roly polies eating strawberries that touch the ground. I put some wire loops around the clumps to raise the berries and they don’t have holes anymore.
I may have killed a soldier bug thinking its a stink bug. and for some reason I thought the lace wig was a bad bug and squished it. What was I thinking???