The Four Seasons Gardening Webinar Series is one of the most popular horticulture programs offered by the Illinois Extension Horticulture Team. Each season, the team hosts three live webinars delivered via Zoom. Webinars are free but registration is required and space is limited. Please click on the topics below to register. Webinars are held on select Tuesdays at 1:30 p.m. CDT.

If you need live captioning support to participate in any of these programs, please contact Andrew Holsinger at aholsing@illinois.edu. It is strongly encouraged to submit your request at least two weeks before the program begins.

Fall 2020

History of Forest Pest Outbreaks in North America

November 17, 2020 at 1:30 p.m. Central Standard Time

North America has a history of exotic pests that extirpate individual tree species, with Emerald Ash Borer serving as our modern example. In our current, ever-globalizing society there is significant risk for future outbreaks that may impact our trees from the urban forest to our woodlands. Join University of Illinois Extension Horticulture Educator Ryan Pankau as he examines past outbreaks on our continent to compare what we have learned historically with the current pests threatening our native trees.

Webinar Archives

Each program is recorded and uploaded to Illinois Extension Horticulture YouTube channel. To allow time for closed captioning edits, please check the YouTube channel about two weeks after the scheduled program.