Hello, Can anyone determine whether or not the grapes belonging to these leaves are safe to eat? Almost all of the leaves from this grape vine are similar to the pictures below. The top of the leaves have bumps and the underside of the leaves have a white foamy substance attached to it. This grape vine has been like this since day one (several years). I was also wondering if there is any treatment I can give the grape vine to cure it from this disease? Any help would be greatly appreciated. Thank you.