Tuesday July 23, 2024
Statesman Journal —
Crews will begin combating an invasive water plant at Minto-Brown Island Park’s Oxbow Slough starting Monday.
Visitors to Minto-Brown are advised to stay out of the slough during treatment times to avoid possible exposure. Treated plants will be marked with a blue-green dye to show areas treated. The herbicide is absorbed by the plants within 24 hours, and the blue dye may remain visible for weeks.
The effort to reduce Ludwigia hexapetala, also known as Uruguayan water primrose, is part of a new five-year partnership between the city and Willamette Riverkeeper.
City officials said the effort mirrors the successful project completed in Willamette Slough over the past four years. Last year, teams planted more than 12,500 native trees and shrubs in the Willamette Slough where Ludwigia had been removed to provide shade and reduce the habitat for the sun-loving invasive plant.