BRIDGTON – The Lakes Environmental Association will offer a free basic course on invasive plant identification and management from 3:30 to 9 p.m. on June 14. The course, which is sponsored by the association in conjunction with the Maine Center for Invasive Aquatic Plants, will be held in the association’s Bridgton office at 230 Main St. It is open to the public. For information call 647-8580.