Invasive Phragmites Management in the Lower Green Bay & Fox River AOC, Wisconsin

The project aims to manage invasive Phragmites through chemical and mechanical treatments, partner collaborations, and landowner and municipal education and outreach. Invasive Phragmites is being targeted in the shoreland areas of Green Bay (from Duck Creek to Point Au Sable), the Fox River (from the De Pere dam to Green Bay), the East River (from STH 172 to the Fox River), Duck Creek (from Pamperin Park to Green Bay), and the Baird Creek Parkway; within the cities of Green Bay, and De Pere, the villages of Allouez, Bellevue, Ashwaubenon, and Howard, and the towns of Ledgeview and Scott in Wisconsin.

Phragmites covers large swaths of the coastline and upstream tributaries to the Fox River. Phragmites not only impacts the coastal wetlands, but also has significantly impacted public access, recreation and property values in the area, and presents a fire risk.

The goal of the project is to work with public and private landowners to remove invasive Phragmites within the Green Bay and Fox River Area of Wisconsin guided by the expertise of an advisory council of local land management professionals. The project will seek long-term maintenance of Phragmites through education/outreach efforts.

We have treated 970 acres of Phragmites in 2016 and mowed 550 acres. We will conduct a follow-up flight in summer 2017 to acquire multi-spectral imagery (with groundtruthing in areas) to inventory live and dead Phragmites after treatment to determine the effectiveness of the initial treatment and develop a treatment plan for the second year of treatment in late summer 2017.

Project boundary with Phragmites Distribution (high resolution image)

Partners in this effort include:

  • WI DNR
  • Brown County
  • The cities of Green Bay and De Pere, the villages of Allouez, Ashwaubenon, Bellevue, and Howard; and the towns of Ledgeview and Scott.
  • UW-Green Bay
  • U.S. FWS
  • Ducks Unlimited
  • TNC
  • Others

Funding source: EPA-Great Lakes Restoration Initiative (GLRI)

Stay informed about the project by signing up for Bay-Lake RPC's Green Bay Shoreline Enhancement e-newsletter at


2017 Herbicide Treatment Permit


For more information contact: Angela Kowalzek-Adrians at



WBAY ABC 2 (11/11/2016): Battle against Phragmites in Brown County by Jeff Alexander

WLUK Fox 11 (10/20/2016): Phragmites cutting in Green Bay by Eric Peterson

WBAY ABC 2 (9/14/2016): Full-scale assault begins on invasive grass in Brown County by Jeff Alexander

WFRV (9/1/2016): Amphibious vehicles used to kill invasive plants in Green Bay by Jordan Lamers

WLUK Fox 11 (8/31/2016): Phragmites sprayed in Green Bay area by Eric Peterson

WLUK Fox 11 (8/23/2016): Phragmites to be sprayed in Green Bay area by Eric Peterson

Green Bay Press-Gazette (7/26/2016): Green Bay is 'ground zero' for invasive reeds by Adam Rodewald

Green Bay Press-Gazette (8/4/2015): $1 million grant to fight invasive bay grass by Adam Rodewald