Southeastern Wisconsin Invasive Species Consortium, Inc.


Southeastern Wisconsin Invasive Species Consortium, Inc. (SEWISC)

is a broad-based coalition that promotes efficient and effective management of invasive species throughout Kenosha, Ozaukee, Milwaukee, Racine, Sheboygan, Walworth, Washington and Waukesha Counties.

Latest News

2017 Garlic Mustard Pull-A-Thon

Join the fun and friendly competition

spring news1 Our Garlic Mustard Pull-A-Thon is an annual fundraiser event, where we encourage youth and adults throughout southeastern Wisconsin to protect the woodlands of their neighborhoods by pulling this invasive plant.  This year, our goal is to collectively pull 10,000 pounds and raise essential funds for the fight against invasive species! 

The pull-a-thon is a competition, a fundraiser, and a way for people to join together and have a positive impact on their environment.  Our natural areas will only avoid damage from invasives with a long-term sustained commitment to invasives control.  Help raise funds for environmental education and a sustainable invasives program at the same time that you help to reduce garlic mustard seed production in 2017.  

Got garlic mustard?

 2017 Pull-A-Thon Teams are currently forming throughout southeastern Wisconsin.  

If you would like to form a Team and add your garlic mustard-infested location to our event, please email us at: .

Take a look at the Team Leader Guidelines and DONATE to your favorite Pull-A-Thon Team.  

Learn more and browse our fantastic list of teams:  

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Why Are We Pulling?

Garlic Mustard (Alliaria petiolata) is an invasive plant that’s taking over ourwoodlands.  It crowds out our beautiful native wildflowers and endangers forests by preventing tree seedlings from growing.  To make matters worse, none of our native insects or wildlife eat it!  Dame’s rocket (Hesperis matronalis), another invasive member of the mustard family, can be pulled and bagged along with garlic mustard during the competition, giving each team extra points and a rocket boost!  Help us remove these invaders from priority locations throughout southeastern Wisconsin as part of an effort to keep our local natural areas healthy.

Raise funds for SEWISC, the only regional organization dedicated to invasive species prevention, education, management and control in southeastern Wisconsin, and for your local natural areas while you help to control garlic mustard.  Recruit friends, family and colleagues to sponsor your pulling efforts.  A small contribution from each in support of this important work will add up to a substantial fund for crucial management of invasive species in our region, and will be a great way to educate your sponsors about the importance of managing invasives.  This is a fun way that you can make a real difference in the protection of the wild areas that you love. WP 20160517 007 1024x768

All proceeds will be will be used for invasive species education, prevention and control in southeastern Wisconsin.  All pledge contributions are tax-deductible.  A  trophy and bragging rights will be awarded to the team that collects the most pledges and pulls the most garlic mustard/dame’s rocket by June 30, 2017.

Got garlic mustard?

Register your Pull-A-Thon Team today and we will add your information to our donation page and to the list below.

Email us at:  and download the Pull-A-Thon documents on the right to get started.

2017 Pull-A-Thon Teams are currently forming throughout southeastern Wisconsin.  Please contact a Team Leader below to join an effort and continue to check back for new opportunities as they are posted.

After choosing your team, contact friends, family and co-workers and recruit their pledges!


Sheboygan County:

Location: Sheboygan River near Lutheran High School and Bookworm Gardens, Sheboygan Falls, WI

Dates and times: April 26, 8:00 AM - 11:00 PM

Contact: Sarah DeZwarte: ; or YMCA Camp Y-Koda: 920.467.6882

Check the calendar for more event details

Donate to the Camp Y-Koda Team


Washington County:

No teams registered yet - check back soon!   C'mon Washington County!


Ozaukee County:

Location: Riveredge Nature Center;  Newburg, WI 

Date and time: May 23, 9:00 AM - Noon and 1:00 PM - 7:00 PM

Contact: Phyllis McKenzie, or 262-375-2715, ext. 120

Check the calendar for more event details

Donate to the Riveredge Nature Center Team


Location: Mequon Nature Preserve;  Mequon, WI 

Date and time: May 11, 9:00 AM - Noon 

Contact: Jason Nickels; ; 262.242.8055x103 or Cory Gritzmacher;   

Check the calendar for more event details

Donate to the Mequon Nature Preserve Team


Location: Bratt Woods;  Grafton, WI 

Date and time: May 20, 9:00 AM - 1:00 PM 

Contact: Christine Bohn;   262.338.1794

Check the calendar for more event details

Donate to the Ozaukee Washinton Land Trust Team


Location: Ulao Creek;  Grafton, WI 

Date and time: April 8, 9:00 AM - Noon

Contact: August Hoppe; ; 414.640.8714 or Andrew Struck; , 262.238.8275

Check the calendar for more event details

Donate to the Ulao Creek Partnership Team


Waukesha County:

Location: Eagle Nature Trail, Eagle, WI

Date and time: April 22, May 12, May 13, 10:00 AM - 1:00 PM

Contact: Jean Weedman; ; 262.594.5996

Check the calendar for more details

Donate to the Eagle Nature Trail Team


Location: EB Shurts Environmental Education Center

Date and time: May 3, 11:00 AM - 5:00 PM

Contact: Isaac Palmer, ; 262-349-5801

Check the calendar for more details

Donate to the City of Waukesha Parks Recreation & Forestry Team 


Milwaukee County:

Location: River Revitalization Foundation Properties; Milwaukee, WI

Dates and times: April 15 and May 1; 1:00 - 4:00 PM and into May (until seed set), Mondays 2:00-4:00 PM and Fridays 1:00-3:00 PM 

Contact: Joanna Demas, River Revitalization Foundation; 

Check the calendar for more event details

Donate to the River Revitalization Foundation Team 


Location: Milwaukee County Zoo; Milwaukee, WI

Dates and times: To Be Announced 

Contact:  Averia Steinman, 414-918-6152; 

Donate to the Milwaukee County Zoo Team 


Walworth County:

No teams registered yet - check back soon!   C'mon Walworth County!


Racine County:

Location: Caledonia Conservancy Trout Ponds; Caledonia, WI

Dates and times: May 19; 9:00 AM - 11:00 AM

Contact: Sandy DeWalt, Caledonia Conservancy Land Trust;

Check the calendar for more event details

Donate to the Caledonia Conservancy Land Trust Team 


Location: Colonial Park on the Root River; Racine, WI

Dates and times: April 22, April 29 and May 6; 9:00 AM - Noon

Contact: Melissa Warner, Weed Out! Racine; ; 262-639-0918

Check the calendar for more event details

Donate to the Weed Out! Racine Team 


Kenosha County:

No teams registered yet - check back soon!   C'mon Kenosha County!

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