The 2019 Second Marsh Invasive Species Management Plan (Draft) identified Phragmites australis (Phragmites) as a priority invasive species in the Second Marsh that requires attention: “Phragmites has had major ecosystem effects on coastal wetlands throughout the Great Lakes and is one of the priority invasive species for Oshawa Second Marsh”.
Phragmites is a dominant introduced perennial grass that was introduced to North America from Eurasia. It spreads quickly and grows in dense monocultures decreasing biodiversity by displacing native plants. To learn more about Phragmites, please visit our Learn More page.
In 2019, Friends of Second Marsh (FSM) commenced a multi-year project called Let’s De-Phrag the Marsh! to manage Phragmites in Oshawa Second Marsh, McLaughlin Bay Wildlife Reserve and surrounding areas.
The overall project objectives for our Let’s the De-Phrag the Marsh! are:
To restore the quality and quantity of wildlife habitats within Provincially Significant Wetland Oshawa Second Marsh (OSM), nearby natural areas and their watersheds to conditions before Phragmites australis (Phragmites) was present
To reduce estimated current Phragmites cover from 20% to 2% of area
To engage and educate nearby property owners and the community about Phragmites, its impact and management
To establish on-going Phragmites monitoring and alert protocol for OSM, nearby natural areas and their watersheds