Thompson Rivers University researcher Dr. Catherine Tarasoff shows how barriers she made of used conveyor belting a year ago created a bare patch in a clump of yellow flag iris next to Dutch Lake.
Left: Tarasoff compares a living legume (l) with a one from the bare patch that has been dead for a year.
She would like to repeat the treatment on a larger scale on a step-by-step basis around the entire lake.
She gave a workshop about how to control invasive plants at Dutch Lake on Sept. 27.