WILLSBORO Cornell Cooperative Extension of Essex County presents three High Tunnel Open Houses. High tunnels are simple structures under which a variety of crops are grown and they are becoming popular with North Country producers. They extend the season by protecting crops from frost and they reduce disease problems by keeping rain off the crops. A series of free open houses is being held for the public to see how well these structures work. The first two open houses are Wednesday, August 27: 6:30-7:30 p.m. at the Carriage House Garden Center on Route 22 in Willsboro, and 7:30-8:30 p.m. at the Cornell EV Baker Agricultural Research Farm on Point Rd in Willsboro. The final one is Thursday, August 28 5:30-7:30 p.m. at Rivermede Farm on Beede Rd in Keene Valley. For more information contact Amy Ivy or Anne Lenox Barlow at 561-7450 or Emily Selleck at 962-4810. Sponsored by Cornell Cooperative Extension with support from the Northern New York Agricultural Development Program.