Hello everyone, I live in Italy and am growing some vines in my garden, one is a rosé grape and the other is called American grape or "uva fragola" (strawberry grape). Both varieties seem to be having a bit of trouble. A lot of the grapes seem to be "drying up" on the vine without maturing. A lot of the leaves have a yellow/brown hue. We have been eating the few grapes that have matured but they aren't maturing very well. We have been treating the plants with "verderame" (copper based treatment) and watering regularly. Do you have any suggestions? Thanks!