Visalia, California, October 8-10, 2009

View full program with abstracts (2.0 MB).

Removing reed canarygrass at Kings Canyon National Park

Photo: Athena Demetry, NPS

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2009 Weed Alerts

See our Invasive Plant Alerts page for this year’s presentation on weeds to watch out for.

Keynote Address

• California’s fading wildflowers: Lost legacy and biological invasions. Richard Minnich, UC Riverside.

Weed Management on the Leading Edge

• From foothills grasslands to alpine peaks: Managing weeds at the leading edge in Sequoia and Kings Canyon National Parks (5.5 MB). Athena Demetry, Sequoia and Kings Canyon National Parks.
• Managing the leading edge: Landscape-level control of invasive plant spread in the Sierra and beyond (2.1 MB). Wendy West, UC Cooperative Extension, El Dorado Co.
• 
  The roles of animals and disturbance in plant invasion: Lessons from the Carrizo Plain (1.5 MB). Paula Schiffman, CSU Northridge.

Student Paper Contest

• Evaluating the potential for spread of an invasive forb, Limonium ramosissimum, in San Francisco Bay salt marshes (3.1 MB). Gavin Archbald*, Katharyn Boyer. San Francisco State University.
• Experimental test of different treatments for control of terracina spurge (Euphorbia terracina): Comparison of hand pulling, glyphosate, and chlorsulfuron (1.2 MB). Erin Avina,^1,2*, Ann Dorsey², and Christy Brigham², ¹CSU Northridge,² National Park Service.
• Exotic grass and forb control in a California grassland (0.6 MB). Sara Jo Dickens* and Edith Allen, UC Riverside.
• Urban invasions: Analyzing recovery of habitat fragments in San Francisco following the removal of Genista monspessulana and Delairea odorata. Rachel Kesel, University College London.
• Soil moisture stress tolerance of the leading biofuel Miscanthus giganteus is similar to the invasive weed Arundo donax . Jeremiah Mann*, Jacob Barney, Guy Kyser, and Joe DiTomaso, UC Davis.
• Evening the odds: Evaluating the combined effects of nitrogen fertilization and exotic annual removal on native annual forbs in the Colorado Desert (1.1 MB). Heather Schneider* and Edith Allen, UC Riverside.

DPR Laws and Regulations

• Laws and regulations pertaining to the sale and movement of noxious weeds in California (1.6 MB). Amber Morris, CA Dept. of Food & Agriculture.
• The importance of vouchering plant identifications (0.5 MB).
  Dean Kelch, CA Dept. of Food & Agriculture.
• Yeah, but what would Aldo think? A look at herbicide ecotoxicology (0.6 MB). Joel Trumbo, CA Dept. of Fish & Game.
• Pesticide “Jeopardy!” with your host David “Alex Trebek” Chang, Santa Barbara County Ag. Commissioner’s office.

New Tools

• Developments in Herbicide Ballistic Technology (link to website). James Leary, University of Hawaii at Manoa.
• WeedSearch: A new tool for estimating time and cost of eradication (3.5 MB). Ramona Robison* and Gina Darin*, ICF Jones & Stokes.
• Solar tents: A new twist on an established method for inactivating plant propagative material (1.1 MB). James J. Stapleton*, UC Statewide IPM Program.

Climate Change: Impacts and Responses

• Interactions between fire and plant invasions under a warming climate in the Sierra Nevada Bioregion (1.1 MB). Matt Brooks, US Geological Survey.
• The promise and pitfalls of species distribution modeling to predict future invasions (9.0 MB). Nicole Heller, Climate Central.
• Climate change and protecting biological diversity: Implementation of California’s report on adaptation strategy (3.1 MB). Rick Rayburn, California State. Parks.

Weed Management on a Large Scale

• Density, compensation and the persistence of yellow starthistle populations across California (0.6 MB). Sarah Swope¹,^2* and Ingrid Parker¹, ¹UC Santa Cruz, ²USDA Exotic and Invasive Weeds Research Unit.
• Team Arundo del Norte: Lessons learned from a coordinated approach to weed management (1.3 MB). Mark Newhouser¹*, Deanne DiPietro¹, David Spencer², Ron Unger³, Bryan Sesser¹, Zhahai Stewart¹,¹Sonoma Ecology Center, ² USDA, ³EDAW .
• Lots of land, lots of weeds, and little time: Large scale baseline weed mapping (3.4 MB). Erin McDermott* and Heath Bartosh, Nomad Ecology.
• PG&E’s approach to management of noxious weeds in Sierra Nevada watersheds and expanding our invasive species efforts through WMA partnerships (1.5 MB). Michael E. Fry, Sr., Pacific Gas & Electric Co.

Partnerships & Incentives

• Can a spiny shrub prick the collective ecological conscience? (4.3 MB). Tara Athan¹* and Peter Warner², ¹Mendocino Coast Cooperative WMA, ²Independent botanical consultant and educator.
• Show me the money! Developing a reimbursement program with the private sector (1.5 MB). Ellen Gartside* and Cindy Roessler, Midpeninsula Regional Open Space District.
• Working together against weeds: Workshops, materials, and Best Management Practices to prevent invasive species spread due to land management operations (3.3 MB). Christy Brigham*, Jay Goldsmith, and Sylvia Haultain. National Park Service.
• The Southern Sierra Partnership. Hilary Dustin, Sequoia Riverlands Trust

Invasive Plant Management

• Aquatic weed management: A survey of techniques and environmental impacts 2001-present (2.0 MB) Michael Blankinship, Blankinship & Associates.
• Refining mechanical removal methods for the eradication of Spartina densiflora at Humboldt Bay National Wildlife Refuge (1.6 MB). Trevor Goodman* and Andrea Pickart, U.S. Fish and Wildlife Service.
• Making room for native grasses: Physical control of coastal weeds (2.9 MB). Andrea Woolfolk*, Kerstin Wasson and Nina D’Amore, Elkhorn Slough National Estuarine Research Reserve.
• Controlling the invasion of noxious rangeland weeds into an exotic-dominated grassland: Is there a role for native grass reseeding? (0.9 MB). Valerie Eviner¹*, Kevin J. Rice¹, Carolyn M. Malmstrom², ¹UC Davis, ²Michigan State University

The Leading Edge of Weed Management: New Tools & Techniques

• Can we keep invasive plants at bay by restoring with competitive native plants? (2.4 MB) Beth Leger, University of Nevada, Reno.
• From backpacks to jetpacks, handpicks to skidsteers: Leveraging old tools and new techniques for long-term restoration success (2.5 MB). Mark Heath, Shelterbelt Builders.
• Beyond weed wrenches: New tools and techniques from around the state (3.4 MB). Joseph DiTomaso, UC Davis.

Discussion Groups

1. Control methods roundtable
2. Mapping points, lines, or polygons: What data representation works best for my project?
3. Research needs for invasive plant management and ecology
4. The unique challenges of long-term follow-up monitoring
5. Brassica tournefortii (Saharan mustard) (Notes, presentation)
6. Careers in invasive species management
7. Preventing introduction and spread of invasive weeds via construction equipment and supply materials (and related USFS report, 1.5 MB)

Posters

STUDENT POSTER CONTEST

• Evidence that plant-associated methylotrophic bacteria aid in grassland and coastal sage scrub restoration. Irina Irvine^1,2*, Marti Witter²; Christy Brigham², Jennifer B.H. Martiny¹, and Katharine Suding³. ¹UC Irvine; ²Santa Monica Mountains National Recreation Area, ³UC Berkeley .
• Genetic identity and phylogenetic relationships of invasive brooms in California. Annabelle Kleist*, and Marie Jasieniuk, UC Davis.
• Assessing the effects of Foeniculum vulgare on seedling germination, soil legacy effects and restoration strategies. Heather Liu, UC Santa Barbara.
• Evaluating the seed bank of a disturbed site to determine potential ecological restoration strategies. Cory Oleson*, Daniel Doran, and Carla D’Antonio. UC Santa Barbara.
• Comparing the competitive ability of Elymus multisetus seedlings collected from invaded and uninvaded habitats. C.J. Rowe*, and Elizabeth Leger, University of Nevada, Reno.

CONTRIBUTED POSTERS

• Invasive aquatic weeds: Implications for mosquito and vector management activities. Charles E. Blair, Mosquito and Vector Management District of Santa Barbara County and Southern California Vector Control Environmental Taskforce.
• Using smart phones and citizen scientists to map invasive species and track spread over time. Christy Brigham¹*, Eric Graham², Sasank Reddy², Eric Yuen², and Olmo Maldonado². ¹National Park Service, ²UC Los Angeles.
• Mapping weeds from the ground, the air or beyond. Margot Griswold^*, Dane Williams, Brian Schmid, and Rob Robinson, NewFields Agricultural and Environmental Resources, LLC.
• Maintaining riparian habitats after initial invasive plant treatments on Camp Pendleton. Benjamin M. Lardiere* and Deborah Bieber, MCB Camp Pendleton.
• Birds and invasive plants: A review of interactions and management considerations. Hildie Spautz¹ and Elizabeth Brusati*². ¹AECOM Design + Planning, ²Cal-IPC.
• Tulare County WMA cost-share invasive weed control. J.L. Sullins¹*, Steve Wright², and Elizabeth Palmer³. ¹UC Cooperative Extension, ²UC Cooperative Extension, ³USDA-NRCS.
• Active and passive restoration of fountain thistle habitat following jubatagrass removal. Don Thomas*, San Francisco Public Utilities Commission.
• Quelling urban invasions. Rachel Kesel, University College London
• Weed control and habitat restoration in saline habitat. David Thomson, San Francisco Bay Ecotone Vegetation R&M.

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