University of Maine Cooperative Extension will hold a mechanical weed control field day 8:30 a.m.–4:30 p.m. Sept. 12 at Rogers Farm in Old Town.  Designed for farmers, crop advisers and others in the agricultural community, this hands-on event will feature tool demonstrations and research results for vegetable and field crop production from local, national and read more Mechanical weed control field day at Rogers Farm Sept. 12