Thank you for joining us at the 2022 Cal-IPC Symposium! More than 700 participants gathered to share the latest in invasive plant management and research in California.

Each video features a full session or discussion/workshop, with minor editing to remove mic checks or technical glitches. Lightning Talks are at the bottom of the page. View the posters and PowerPoint presentations in PDF format on the 2022 Cal-IPC Symposium page in our archive.

Welcome and Session 1: Special Session – Fire! Protecting communities with environmentally sensitive vegetation management

(00:21) Welcome and Cal-IPC updates – Doug Johnson, Cal-IPC

(21:11) Replacing non-native grasses with herbaceous native plants to reduce ignition potential of fuel breaks and roadsides – Robert Fitch, PhD Candidate, University of California, Santa Barbara

(45:23) Timed mowing of invasive grasslands in Santa Monica Mountains National Recreation Area – Matthew Wells, Principal Restoration Lead, Santa Monica Mountains Fund, CSU Dominguez Hills

(1:07:37) Conservation-based approaches for landscape-scale fuels management projects – Allison Erny, Forestry Project Manager, Placer County Resource Conservation District

(1:32:21) Expanding the use of prescribed fire as an ecosystem stewardship tool in fire-adapted landscapes – Hannah Lopez, Fire Forward, Audubon Canyon Ranch

Career Panel 

Designed for students and early-career professionals, watch to hear advice and input from people in different areas of the conservation field. Moderated by Clarissa Rodriguez, Cal-IPC Student Liaison and PhD Student at UC Riverside.

Speakers:
Kris Hulvey, Founder & Chief Scientist, Working Lands Conservation
Hailey Laskey, Preserve Manager, Center For Natural Lands Mgmt
Dirk Plunkett, Laboratory Technician, UC Riverside
Mark Mendelson, Botanist, National Park Service

Workshop: How to Set Up an Early Detection/Rapid Response (EDRR) Program

Speaker: Rachel Kesel, Conservation Management Specialist, Golden Gate National Parks Conservancy

(0:00) Introduction and Value of EDRR (Invasion Curve)

(13:40) Where are the weeds? A geographic approach to prioritization with an emphasis on vector pathways.

(32:41) Drafting a species list using Cal WeedMapper, WMA lists, and other tools. Techniques for creating a realistic list with emphasis on detectability, likelihood of treatment success, and habitat preferences.

(01:01:34) Data collection dos and don’ts

(01:17:50) Treatment Strategies: Treatments on surveys, “When to Treat” cheatsheet, Integrating early detections into annual maintenance

(01:30:04) Tips for integrating EDRR into existing weed management programs

(01:34:19) Approaches for starting small

(01:45:15) Review of materials available to support development of your pilot program

Link to resources:

EDRR Handbook
EDRR Handbook Appendices
EDRR Mapping Cheat Sheet
BMP Training for EDRR
Initial Considerations Worksheet

Herbicide Laws and Regulations

Moderated by LeeAnne Mila, El Dorado County

(0:00) Welcome – Doug Johnson, Cal-IPC

(01:38) Being a responsible applicator – Jim Hartman, Deputy Agricultural Commissioner/Sealer, LA Co. Agricultural Commissioner/Weights &Measures

(28:24) Do the right thing! Common mistakes in wildland weed applications and how to correct them – Christopher McDonald, Advisor, University of California, Cooperative Extension and LeeAnne Mila, El Dorado County

(01:28:36) Use it or lose it: Personal Protective Equipment (PPE) and weed management – Maria Alfaro, Community Education Specialist, UC Ag Natural Resources (UCANR)

Session 2: Post-Fire EDRR and Restoration

Moderated by Lauren Quon, US Forest Service

(0:00) Tackling invasive plant populations after the 2020 fire season in the Angeles National Forest – Andrew Castro, Weed Crew Lead, California Botanic Garden

(21:25) Case Study Butte Fire: Post fire seeding and mulching treatment effects on plant cover, RDM, erosion control and invasive species recruitment – Julia Michaels, Restoration Ecologist, Hedgerow Farms / Pacific Coast Seed

(42:53) Control of invasive plants within the Scorpion Fire burn area at Santa Cruz Island – Jay Woolsey, Restoration Ecologist, California Institute of Environmental Studies

Session 3: Herbicide Hot Topics

Moderated by Scott Oneto, University of California Cooperative Extension

(0:00) What’s new from industry: California land management herbicide update – Rick Miller, Territory Manager for Pasture & Land Management, Corteva

(20:40) The basics of herbicide resistance in weeds – Brad Hanson, Cooperative Extension Weed Specialist, UC Davis

(39:12) Using organic herbicides on roadsides and ROW: Evaluating costs and effectiveness – Christopher McDonald, Advisor, University of California, Cooperative Extension

Weed Alerts and Session 4: Failure to Launch and Lessons Learned

Moderated by Clarissa Rodriguez, Student, University of California Riverside

(0:00) Weed Alerts and Invasive Plant Updates for 2022 – Jutta Burger, Science Program Director, California Invasive Plant Council and Robert Price, CDFA Seed Lab

(28:35) Making restoration better (Nothing in this presentation is true but it’s exactly how things are). – Elise Gornish, University of Arizona

(48:10) Land stewardship in these changing times: Hard work, a sense of humor and a dash of humility go a long way towards peace of mind. – Michael Gilogly, Preserve Manager, Pepperwood Preserve

(1:07:07) Fumbling towards successful strategies to increase forest diversity under Acacia koa stands in Hawaiʻi – Stephanie Yelenik, USFS

Session 5: Special Session – Protecting Nature in the City

Moderated by Peter Brastow, Senior Biodiversity Coordinator, SF Environment Department

(0:00) Managing invasive plants for biodiversity in the city: a view from Los Angeles – Travis Longcore, Adjunct Professor, UCLA Institute of the Environment and Sustainability

(21:07) The biological deserts fallacy: Cities in their landscapes contribute more than we think to regional biodiversity – Erica Spotswood, Second Nature Ecology and Design

(40:54) Urban nature, biodiversity, and climate change in cities around the world – Amanda Ikert, Head of Adaptation Implementation, C40 Cities

(01:03:53) City of Portland invasive species strategies and comprehensive policy framework; A synopsis – Dominic Maze, City of Portland, Bureau of Env. Services

(01:22:39) Managing for native biodiversity in San Francisco’s urban environment – Isao Kaji, Natural Resource Specialist, SF Recreation and Parks

(01:37:18) Panel Discussion and Q&A

Session 6: Coastal and Wetland Projects on the Wildland Urban Interface

Moderated by Drew Kerr, Consultant, Invasive Spartina Project

(0:00) Mobilizing rapid response to the tidal marsh threat posed by Paspalum vaginatum in both northern and southern California – Drew Kerr, Consultant, Invasive Spartina Project and Alys Arenas, Restoration Manager, Newport Bay Conservancy

(23:32) Controlling invasive Phragmites australis at a restoration site in Suisun Marsh, CA – Madison Thomas, California Department of Water Resources (DWR)

(41:46) Environmental constraints and management results for parrotfeather, Myriophyllum aquaticum – Lauren Kuehne, Environmental Scientist, Omfishient Consulting

Session 7: Tools and Techniques

Moderated by Guy G. Hernandez, Biological Science Technician (Plants), Yosemite National Park. Note: Due to limited connectivity for remote speaker locations, the video may appear to freeze or jump and audio may glitch momentarily.

(0:00) Winter annual grass control: Experiences with indaziflam in the mountains of northeastern California– Thomas Getts, UCCE

(19:50) Weeds and seeds and fire, oh my! Weed management lessons from Montana – Jane Mangold, Professor, Montana State University

(39:46) Machine learning and robotics enhances the value of physical weed control – Steve Fennimore, University of California

Awards and Session 8: Bridging the Gap Between Academia and Land Management

Moderated by Metha Klock, Assistant Professor, San Jose State University

(0:00) Awards – Doug Johnson, Executive Director, Cal-IPC

(14:40) Limitations and solutions to sharing knowledge about invasive species research and management between academia and land management – Metha Klock, Assistant Professor, San Jose State University

(37:52) Translational invasion ecology and climate change: Bridging research and practice to address the greatest drivers of global change – Toni Lyn Morelli, US Geological Survey

(01:01:13) Land use type influences project outcomes and timelines in academic and non-academic partnerships – Esther Cole Adelsheim, Stanford University

(01:23:39) Closing – Doug Johnson, Executive Director, Cal-IPC

Discussion Group 1: Fuels management the wildland urban interface (WUI)

Moderated by Robert Fitch, PhD Candidate, University of California, Santa Barbara

Speakers:

Allison Erny, Forestry Project Manager, Placer County Resource Conservation District
Hannah Lopez, Fire Forward, Audubon Canyon Ranch
Matthew Wells, Santa Monica Mountains Fund
Rose Samuelson, Fuels Reduction Coordinator, East Bay Regional Parks

Discussion Group 2: Stewardship of urban nature

Speakers:

Peter Brastow, Senior Biodiversity Coordinator, SF Environment Department
Isao Kaji, Natural Resource Specialist, SF Recreation and Parks
Dominic Maze, City of Portland, Bureau of Env. Services
Travis Longcore, Adjunct Professor, UCLA Institute of the Environment and Sustainability
Erica Spotswood, Second Nature Ecology and Design
Amanda Ikert, Head of Adaptation Implementation, C40 Cities

Discussion Group 4: Integrating weed control techniques

Moderated by Scott Oneto, University of California Cooperative Extension

Speakers:

Christopher McDonald, Advisor, University of California, Cooperative Extension
Pamela Beitz, East Bay Regional Park District (EBRPD)
Thomas Getts, UCCE
Shani McCullough, Riverside-Corona Resource Conservation District
David Campbell, Yosemite National Park

Link to the publication Weed Control in Natural Areas in the Western United States, mentioned in the discussion

Discussion Group 5: Grasslands management

Moderated by Chris Rose, Solano RCD

Speakers:

Tanya Meyer, Yolo RCD
Miles DaPrato, Environmental Steward, UCD Arboretum and Public Garden, Riparian Reserve
Megan Lulow, UCI-Nature

Discussion Group 6: Mapping and tracking invasive plants with Calflora

Speakers:

Cynthia Powell, Executive Director, Calflora
Pete Frye, Trainer, Calflora
Nikki Valentine, California Invasive Plant Council (Cal-IPC)

Lightning Talks

South American spongeplant (Limnobium laevigatum) found in the Feather River – Robin Carter-Ervin, California Department of Water Resources (DWR)

Case study: Managing yellow starthistle in grazed and ungrazed areas in the California Central Coast – Jackson Brooke, Restoration Manager, Santa Lucia Conservancy

Habitat restoration at Hidden Valley Wildlife Area utilizing drone technology – Christiana Conser, HANA Resources, Inc.

Jubata grass in the wake of the Woodward Fire – Rachel Hendrickson, Vegetation Biologist, Point Reyes National Seashore

Invasive grasses interact with rainfall variability to shift taxonomy and function in native rhizosphere microbiomes – Marina LaForgia, Postdoctoral Fellow, UC Davis

Update on recent biological control releases against invasive plants by the USDA-ARS in California – Patrick J. Moran, Paul D. Pratt, and Lincoln Smith, USDA-Agricultural Research Service

The effect of Vicia villosa invasion on plant-pollinator networks and native plant fitness –Rebecca Nelson, Graduate Student, UC Davis

Distilling data with Calflora – Cynthia Powell, Executive Director, Calflora

Assessing the impacts of herbicide management options on the soil seed bank – Clarissa Rodriguez, Student, University of California Riverside

Incomplete burning during prescribed fire may form stinknet (Oncosiphon piluliferum) refugia – Stuart Schwab, UC Riverside

Assessing woody plant encroachment in Marin County, California, 1952-2018. – Charlie Startin, IPM Intern, Natural Resources Division, San Francisco Public Utilities Commission

Updates on horticultural invasives prevention – Alex Simmons, Program Manager, PlantRight (Plant California Alliance)

Who’s managing what, and for whom? – Joanna Tang, Doctoral student, University of California, Santa Barbara and Brooke Wainwright, Student, UC Davis