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Mark Renz, Univ. of Wisconsin


Tuesday September 28, 2010 at 8:30 AM  to 3:30 PM 

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Wisconsin DNR Office 
N7725 Highway 28
Horicon, WI 53032 

Directions to Horicon Marsh State Wildlife Area (PDF)

Maps of Horicon Marsh (PDF | JPG)

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Wisconsin Invasive Species Field Day | Horicon, WI | Sept 28, 2010

Register Now!

Although this event is free to participants we ask that people who wish to attend register in advance.
If space is limited we will give priority to people who have preregistered!


The Invasive Plant Association of Wisconsin and Dow AgroSciences have teamed up to hold a classroom training on invasive plant identification and management that includes field visits to demonstration plots. The training will be FREE and held on September 28th from 9-3 pm at Horicon Marsh (N7725 Hwy 28, Horicon, 53032) (See left sidebar for directions).

At this training a morning session will review the importance of controlling invasive plants as well as presentations on identification of new invasive plants, the NR40 rule, a review of herbicides use and safety, and how to integrate herbicides into restoration plans.  The group will then be bused to Marsh Haven Nature Center (W10145 Hwy 49 East,  Waupun, 53963) for a free lunch (sponsored by Dow AgroSciences) where Horicon Marsh expert Bill Volkert will cover a bit of history of Horicon Marsh, mostly in terms of what we know of the ecosystem structure in early settlement days, and then cover some of the problem invasives, particularly in relation to how the marsh has changed from what it was vegetatively. The group will then spend the afternoon visiting various research and demonstration plots.  These will highlight the following projects:

  1. Integration of herbicides to improve establishment of diverse grass/forb prairies
  2. Herbicide option for controlling troublesome brush species; initial and long-term results
  3. Restoration after building wildlife ponds

The goal of these afternoon field tours is to introduce these topics to attendees as well as allow for questions and discussions with experts who actively work in this area. So bring your questions to pose to experts as we will have a range of experts in attendance including: researchers, land managers, state agency personnel, and industry representatives.

Tentative Agenda


8:30-9:00        Registration, coffee

9:00-9:30        Welcome and introduction to why invasives are important

9:30-10:00      Identification of new invasive plants spreading throughout Wisconsin

10:00-10:15     NR40: What you need to know and how you can help

10:15-10:40     Review of herbicides, how they work and how to use safely

10:40-11:00     How to integrate herbicides into restoration

11:00-11:30      Travel to lunch

11:30-1:00        Lunch with guest speaker: Impact of invasive plants on the Horicon Marsh

1:00-3:30         Field tour

stop 1         Fall timing herbicides on Canada thistle, and herbicide and revegetation experiments
stop 2         Opensight performance on willow and cottonwoods
stop 3         Restoration after establishing wildlife ponds
stop 4         Brush herbicide demonstration
stop 5         FWS brush demonstration 2 years after herbicide treatment