After a mild winter delivered too few of the cold-weather hours that peach trees rely on for ample harvests, orchards in Fredericksburg, Texas, are dealing with a smaller crop for the third year in a row and a less predictable supply. What's happening? Peaches are still showing up at Fredericksburg stands, but KUT reported that another gentle winter left growers with a harvest smaller than usual. For longtime peach shopper Marlene Russell, that …