PTRC members are invited to join local native plant expert Mark Imlay on Saturday, July 14, at 9:30 a.m., for a walk at Port Tobacco River Park, 7685 Chapel Point Rd, Port Tobacco MD 20677. Mark will help us to identify invasive plants in the park and discuss strategies for their control. We will stay on the trails, but dress to protect yourself from poison ivy and insects, and don’t forget to bring drinking water.