Amesbury: Katie Karatzas, a volunteer with the Lake Attitash Association, is helping to organize a weed identification class on the shores of Lake Attitash tonight at the group's beach at the eastern end of Lakeshore Drive. Scientists with the State Department of Conservation and Recreation will be on hand to help residents identify invasive weeds from their sections of the lakefront. Bryan Eaton/Staff Photo Newburyport News Tuesday August 4, 2009.

090804beaweeds