Cal-IPC Symposium

Composite image of man in a field of poppies group of people with string trimmers man hauling a load of Arundo and woman with shovel walking through a field

Photo credit, left to right: Shawn Thorin, Benjamin Dion, Jessica Plance, Jose Gomez

Cal-IPC 30-Year Anniversary | Oct. 26-29, 2021 | Online

Now online! 2020 Cal-IPC Symposium Video recordings – Catch up on your favorite sessions.

Call for Abstracts now open – Deadline June 15

Share your expertise! We look forward to sharing your discoveries and lessons learned.

Registration will open in May

A Latino man in glasses and a black shirt points to a poster while talking to a smiling Italian woman

Join us to connect with colleagues and learn. Photo: Claire F. Meyler

Celebrate 30 years of learning with Cal-IPC. Join us for more session talks, discussion groups, and posters covering a wide range of topics related to invasive plant biology and management.

Symposium Sponsorship

Sponsor the Symposium! Connect to California’s natural resource management community, while providing vital support.

Take pictures now for the 2021 Photo Contest 

Get ready! Photo Contest opens July 2021. Take pictures while you’re in the field now, or sift through the archives to help us tell the story of weed work in our state.

Cal-IPC Awards

View award winners from previous Symposia and celebrate their success.

Cal-IPC Symposia Archive

Looking for more content? See our Symposia Archive for presentations and proceedings for previous Symposia back to 1995.