California Invasive Plant Council

Avoid the late rates and register for - Regular registration deadline is just two days away on October 1st. We hope to see you online to share the latest in invasive plant management.

Register: https://www.cal-ipc.org/resources/symposium/register/

“Integrated Management of Fire-Adapted Invasive Plants that Change Wildfire Regimes” was recently published by the Council for Agricultural Science and Technology, highlighting the relationship invasive plants have with fire. It also covers managing invasive plants that affect wildlfire using an IPM approach and techniques, tools, and BMPs for restoration. And Cal-IPC’s Executive Director, Dr. Jutta Burger, is a co-author!

Check it out: https://publications.cast-science.org/CAST/en/article/view/45/47

Cal-IPC recently conducted a survey to assess the need for more resources on w**d spread through contaminated materials, such as soil, mulch, and gravel, and the results are in! Nearly two thirds (66%) of respondents reported needing to take management action to control w**ds from contaminated materials, with nearly a third utilizing herbicides use to control those w**ds. This survey clearly established a need for further education on how to avoid incidental w**d spread through materials, and Cal-IPC is currently working to secure funding for this project. More to come on this topic!

The photo shows invasive Johnsongrass (Sorghum halepense) that was brought in with rice straw mulch after the King Fire in Eldorado National Forest.

Don’t forget to get your 2026 Cal-IPC t-shirt, available now! With a fun original design and art by Annaliese Miller (amdesignworks.net), this shirt emphasizes the ways that our local work connects to the global challenge of invasive species. Lots of colors and styles available.

Order here: https://www.bonfire.com/think-globally-w**d-locally/

Last call to submit your photos for our 2026 Photo Contest! Submissions close at 11:59 pm tomorrow, Tuesday, September 15. We love seeing your photos! Plus, your photos help us tell the story of w**d work in California, both the w**ds and the people working on w**ds. Your photos may be used (with credit to you) in Cal-IPC outreach materials such as our newsletter, website, brochures, campaigns, slide presentations, and reports. The types of photos we use most are:

🌱🌳Before & after restoration photos
👩‍🌾Weed workers in action
⛰️Invaded landscapes
🌿Species close-ups individual w**ds

Voting for photos will be open from Sept. 16 through Oct 20 and winners will be announced on Oct 22 at the online Symposium. The top three winners get Cal-IPC gear!

Submit your photos here: https://www.cal-ipc.org/resources/symposium/photocontest/

Thanks for "taking your best shots" in the field and sharing them with Cal-IPC!

This year, the Invasive Species Council of CA (ISCC) is hosting their California Invasive Species Summit, an in-person event designed to bring together state and federal agencies, tribal governments, county agricultural commissioners, researchers, water agencies, growers, conservation organizations, and other partners to strengthen California's coordinated response to invasive species. The summit will focus on a wide range of topics including climate change effects on spread of invasive species to identifying implementation considerations for controlling invasive species.

When: Oct 1, 2026 8:30am – Oct. 2, 2026 5:00pm PDT
Where: CNRA, 715 P St., Sacramento, CA 95814

To register for the event, visit: https://events.humanitix.com/california-invasive-species-summit

Biodiversity week is coming up soon from September 5-13! So get ready to pull some w**ds, plant some trees, or race to ID as many species as you can in a Bioblitz!

To view scheduled events in your local area, visit https://www.californianature.ca.gov/pages/biodiversityday

Register for now! Regular rates are available through October 1st. We hope to see you online to share the latest in invasive plant management.

Register: https://www.cal-ipc.org/resources/symposium/register/

Preliminary program: https://www.cal-ipc.org/resources/symposium/program/

Did you know that CA’s Natural Resources Secretary, Wade Crowfoot, has been hosting a Secretary Speaker Series? These monthly discussions are with leaders and big thinkers across CA to discuss emerging natural resource issues.

They recently discussed invasive species, which included our very own Tanya Meyer, Program Manager at Yolo County RCD and Cal-IPC Board member. Check out the conversation here: https://www.youtube.com/live/3ZFiUbYs4Rc

Also you can watch previous speaker series events and stay tuned on upcoming discussions. https://resources.ca.gov/About-Us/Secretary-Speaker-Series https://bit.ly/45Z6tTq

Last week we joined the California Invasive Species Advisory Committee (CISAC) for a tour of the Delta, where we got an up-close look at projects tackling invasive species. Speakers shared their experiences managing invasive species across the Delta, giving us a better understanding of the unique challenges faced in the region. We also got to see drones, detector dogs, airboats, and more in action protecting the Delta from invasive species. Don't miss the CISAC Invasive Species Summit on Oct 1 and 2!