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Applying Herbicides in Natural Areas

Schedule and location

Saturday, March 21, 2020, 9:00 a.m. to 12:30 p.m.
Thornhill Education Center

Registration will open Tuesday, November 19, 2019.

Fees and Registration

$29.00 member
$34.00 nonmember
(Fees include admission to the Arboretum)

BY PHONE: 630-719-2468 ( Monday through Friday, 9:00 a.m. to 4:00 p.m.)

Course description

Learn how to safely use herbicides to benefit natural areas management. Careful herbicide applications can be an important tool for stewards managing and restoring natural areas. We will discuss the basic herbicide methods and results, including woody plant control, invasive grass control, broadleaf herb control, and other uses of herbicide which can help protect biodiversity in remnant plant communities as well as newly created prairie plantings and woodland restorations.

Course number



Mary Zaandar, Witness Tree Native Landscapes

Mary Zaander works to restore native ecosystems at Witness Tree Native Landscapes as owner and manager, her vocation for 22 years.  Her ecosystem education began as a volunteer in the late 1980’s, continued with a master’s degree from Northeastern Illinois University and is ongoing today both professionally and as a volunteer.

Course details

  • Notes: Indoors and outdoors. Limit 20.
  • Supplies: Herbicide study guides and training manuals are available: https://web.extension.illinois.edu/psep/publications/publications.cfm
  • Prerequisites: Open to anyone involved or interested in the stewardship of our natural heritage, regardless of prior experience. Pesticide operator’s license is not required for this class.

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