University of Maine Cooperative Extension is offering a free apple tree pruning and grafting field day from 10 a.m. to 1 p.m. Saturday, April 25, at Avalon Acres Orchard & Farm, 234 Dexter Road, Saint Albans. Avalon Acres owner Mark Sheriff, an alumnus of the UMaine Extension Master Gardener Volunteers program, will present information about read more Learn to Prune, Graft Apple Trees at Free Field Day