Learn to assess the invasive species at a site and to set priorities for efficiently and effectively managing invasive species in this engaging online class. Through interactive online learning modules, you will explore how to prioritize management activities, learn the importance of seasonal timing of invasive species control, and discuss how to develop a plan of action for stewardship at an example site. Then join your instructor for a live, scheduled Zoom session to continue your learning and discuss key elements of site management.
Previous experience identifying invasive species is recommended.
This program includes self-paced online components and a live Zoom session.
Instructor: Greg Rajsky, ecologist and owner, True Nature Consulting
Continuing education: This class fulfills a requirement for the Natural Areas Conservation Training (N-ACT) Program.
Age: 18 and older
Course number: W330
Instructor
Greg Rajsky, ecologist and owner, True Nature Consulting
Greg Rajsky completed the Naturalist Certificate Program through The Morton Arboretum in 1996 and has been teaching courses here ever since. He has been engaged in restoration and management projects across Northern Illinois, Southeastern Wisconsin, and, more recently, on the Ozark Plateau in Arkansas’ White River Hills ecoregion. He served as naturalist and educator at Severson Dells Nature Center in Rockford and as executive director of the Kettle Moraine Land Trust in Wisconsin. In 2013, he established True Nature Consulting to aid landowners in understanding and managing their natural areas. An avid field botanist, he enjoys introducing people to the charms of our native flora.
What to Know
Please provide a unique email address for each registrant at registration.
This program includes an online component you will complete on your own and a live Zoom session with your instructor. Registrants will receive an email with instructions on how to access TreeLearning, the Arboretum’s online learning portal.
Access to online learning material begins at noon on Thursday, January 29 and is available for 60 days.Self-paced online learning should take about 90 minutes and does not need to be completed in one sitting.
Complete the self-paced online modules before the scheduled Zoom session.
A link to the live Zoom session will be provided via email.
Continuing Education
This class fulfills a requirement for the Natural Areas Conservation Training (N-ACT) Program.
Program Schedule
This program includes a self-paced module online and a live online session.
Thursday, January 29, 2026, noon. Online materials become available.
TreeLearning
Thursday, February 12, 2026, 7:00 to 8:30 p.m. Meets online.
Zoom
