We're in the middle of our harvest season, when farmers all over Maryland are bringing in the food they've worked so hard to produce. In Italy this season is celebrated with the Feast of San Martino, who quite logically is the patron saint of grape pickers, winemakers and sommeliers. So to fill us in on this festival, we've invited a friend whose knowledge and understanding of this Feast is first rate, chefSergio Vitale of Aldo's Restaurant in Little Italy. Chef Sergio gave us a few ideas for celebrating San Martino. Here they are.