This chart was published in an Italian newspaper showing that overall production of grapes, which is a huge part of agriculture in Italy, is down 2% overall.
Although this may seem like a bad thing it isn't. Does this mean eventually, like 2020, that it will be harder to find a good $10 bottle of wine Italian wine? Yes! However I think this overall contraction of demand in Italian wine grapes and their end product will force producers to only farm the best sites. Also this will cause farmers to concentrate the efforts on quality and not quantity to avoid dumping their wine into western Europe's already overflowing wine lake.