Cal-IPC Symposium

Join us online for our 2026 Symposium! Our theme this year is “Think Globally, Weed Locally!” with special sessions on ways that our local work connects to the global challenge of invasive species. In addition to presentations covering the latest in invasive plant management and research, we are planning special sessions to cover:

  • Biological control of weeds
  • The cost of not managing invasive plants
  • Local management and engagement actions that work
  • Global movement of aquatic and wetland weeds
  • Management strategies for habitats with ubiquitous weeds
  • Tools and techniques for weed management
  • Geospatial technologies and approaches
  • Protecting biodiversity through weed management
  • Preventing horticultural invasives
  • And more!

 

Two people discuss a poster while more people in the background look at other posters

Register now!

Save with early bird registration rates through August 1.

 

 

 

Cal-IPC Symposium 2018 poster session

Preliminary program now available

Check out the scheduled workshops, sessions, and discussion groups. Plan your day and check back periodically for updates as more details are added.

 

 

 

Sponsor the 2026 Symposium

By supporting the Symposium as a sponsor, you connect with California’s natural resource management community while making this event possible.  We greatly appreciate your partnership!

Volunteers take a break from pulling invasive sea lavender from Richardson Bay in Marin County to share a smile for the camera. Photo: Dana Morawitz

 

Submit pictures for the 2026 Photo Contest

Your photos help us tell the story of weed management and restoration. Take pictures while you’re in the field. Photo Contest closes September 15.

 

 

Get your 2026 Symposium t-shirt!

This year’s shirt features an original design by Annaliese Miller featuring Yellow starthistle (Centaurea solstitialis), Spanish broom (Spartium junceum), and a stinkwort seed (Dittrichia graveolens). Choose from a variety of colors and styles on Bonfire.

 

Information for Presenters

We want to hear from you! Share your work with colleagues as we discuss the latest in invasive plant management and ecological restoration. Presenter submissions are now closed.

 

 

 

John H. Anderson Scholarship

Are you a student or new to the field of invasive plant management? Applications have closed but prepare for next year and learn more about the John H. Anderson Scholarship.

 

FAQs

Check here for answers to frequently asked questions about the Symposium.

 

Cal-IPC Symposia Archive

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