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    Phragmites Control in Private Community
    Phragmites Management Case Study

    Location and Acreage:
    Ocean View, DE | 25-Acres

    Project Timeframe: 
    2014 to 2017

    Project Manager:
    Greg Blackham, Aquatic Specialist

    Key Staff:
    Wes Allen, Territory Leader and Environmental Scientist
    Brandon Tindley, Aquatic Specialist

    Site Description:
    This property is a private community with about a half mile of wetland shoreline bordering White Creek, an inlet to the Indian River Bay.

    Aquatic Specialist Performing Treatment

    Scope of Work:
    Eradication efforts of Phragmites australis took place with a combination of mechanical clearing and systemic herbicide treatments. The treatment area was calculated at roughly 25 acres of affected wetland.

    Project Description:
    In 2014, SOLitude Lake Management began an eradication effort to remove introduced invasive Phragmites from the wetland/shoreline area which had displaced approximately 70% of the vegetation native to the area. From 2014 – 2017, a combination approach was implemented using mechanical and herbicide methods.

    Phragmites Site     After Phrag Treatment

    Before treatment, all of the large stands of phragmites were clear cut and mulched into the wetland. This was done to prepare the site for herbicide and to allow it to increase foliar coverage once the dead stalks were no longer an obstacle. In the spring of 2014, herbicide suppression treatments were conducted to keep the phragmite height low in preparation for the fall treatment. In the fall of 2014, a full scale systemic herbicide treatment was conducted while the plants were in translocation of nutrients to enhance herbicide uptake.

    This process was repeated each year through 2017 and resulted in successful eradication of approximately 90% of phragmite regrowth. Expectations were not set at 100% eradication with the understanding that the underlying soil contains a large seed bed for new growth and neighboring communities, marshes and wetlands were continually introducing new seed. A secondary objective of the project was successful in that it opened up continual view corridors to White Creek.

     Treatment Map

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