Conservation and Communication: The Human Dimension in Invasive Plant Management

• September 20 – 22 at the Bahia Resort Hotel in Mission Bay, San Diego
• 2007 Program and Abstracts (pdf)
• Thanks to our sponsors for their generous support of Cal-IPC and the Symposium.

DPR Continuing Education Credits

• Mapping Field Course: 6.0 hrs Other; Code: A-1116-07
• Thursday: 5.5 hrs Other; Code: A-1148-07
• Friday: 5.0 hrs Other + 2.0 hrs Laws & Regs. OR 7.0 hrs Other; Code: A-1149-07
• Saturday Field Trips: 4.0 hrs Other; Code: A-1150-07

2007 Weed Alerts

See our Invasive Plant Alerts page for Dr. Joe DiTomaso’s presentation on weeds to watch out for.

2007 Symposium Presentations

Note: These are large PDF files converted from Powerpoint presentations. You may need to download the most recent version of Adobe Acrobat Reader to view them. Unavailable presentations have been withheld from publication at the presenter’s request.

* Indicates presenter

2007 post-Symposium Field Trip, San Diego

Photo: Bob Case

Invited Session 1 – Building Lasting Coalitions

• The California Rangeland Conservation Coalition. (0.8 MB) Kim Delfino, Defenders of Wildlife.
• The California Horticultural Invasives Prevention (Cal-HIP) partnership and the PlantRight campaign. (4.6 MB) Betsy Peterson, California State Floral Association.
• Cache Creek Conservancy: Building Tribal Partnerships. Shannon Brawley, Cache Creek Conservancy.

Contributed Session 1 – Mapping and Planning

• Why walk when you can fly? Systematic aerial weed survey of Santa Cruz Island, California. (2.6 MB) John Knapp*, Native Range Research and Management; Kelvin Walker, Prohunt; Rachel Wolstenholme and Coleen Cory, The Nature Conservancy.
• How to develop user-friendly riparian corridor invasive exotic species/habitat restoration master plans: Experiences on the San Diego and Otay Rivers. Brad Burkhart*, BEC/ECORP Consulting; Mike Kelly, Kelly  and Associates.
• Distributional patterns of perennial pepperweed (Lepidium latifolium) in the San Francisco Bay, a CalFed project. (16.4 MB) Melanie Vanderhoof* and Chris Rogers, Environmental Science Associates.
• Developing early detection networks to abate the invasive species threat. (2.5 MB) Tania Siemens and Mandy Tu*, The Nature Conservancy.

Contributed Session II – Management 

• Managing herbaceous perennials in the Tahoe Basin. (1.4 MB) Jennifer Erskine-Ogden*, UC Davis; Mark J. Renz, University of Wisconsin, Madison; Justin Norsworthy, New Mexico State University; Sue Donaldson, University of Nevada Cooperative Extension.
• The break-up and dispersal of Arundo donax by bulldozers. (4 MB) John Boland, Tijuana River Valley Invasive Plant Control Program.
• Spraying over the top of Ambrosia pumila, a federally-listed species, to control invasive weeds. (2.9 MB) Mike Kelly, Kelly and Associates.

Contributed Session III – Management

• Evaluation of control efficacy and potential off-target effects resulting from herbicide treatment of invasive fig trees (Ficus carica). Katherine A. Holmes* and Alison M. Berry, UC Davis.
• Non-chemical exotic control in coastal sage scrub restoration at an Audubon Preserve. (4.2 MB) Sandra DeSimone, Audubon California’s Starr Ranch Sanctuary.
• Artichoke thistle (Cynara cardunculus) control efforts and community recovery in historic southern California rangeland. (3 MB) Margaret Royall*, Michelle Murdock and Katharine Suding, UC Irvine; Trish Smith, The Nature Conservancy.
• Assessing non-target vegetation response in the wake of perennial pepperweed (Lepidium latifolium) eradication at the Cosumnes River Preserve. Rachel A. Hutchinson*, Joshua H. Viers and James F. Quinn, UC Davis.

Board members Wendy West and Dan Gleusenkamp and board member-elect Beth Keer enjoy the social hour at the 2007 Cal-IPC Symposium, San Diego

Photo: Cal-IPC

Contributed Session IV – Biological Control

• Evaluation of the rosette weevil, Ceratapion basicorne, a new biological control agent of yellow starthistle. (3.5 MB) Lincoln Smith*, USDA-ARS. Massimo Cristofaro ENEA C.R. Casaccia, Rome, Italy; Carlo Tronci Biotechnology and Biological Control Agency, Rome, Italy; Rustem Hayat, Ataturk University, Erzurum, Turkey.
• The effects of Puccinia jaceae on yellow starthistle competition and growth. (3.1 MB) Jon O’Brien*, Joe DiTomaso, and Guy Kyser, UC Davis; Dale Woods, University of Wyoming.
• Regional testing of Diorhabda ‘elongata’ ecotypes for the biocontrol of saltcedar (Tamarix spp) in western US. (1 MB) Peter Dalin, UC Santa Barbara.
• Gray leaf spot of kikuyugrass: An invasive pest of an invasive pest. (2.5 MB) Frank P. Wong*, Karla A. de la Cerda, and Greg W. Douhan, UC Riverside.

Invited Session II – Designing Effective Communication Strategies

• New ways to connect: Taking the pulse, eliminating the rumors. (2.9 MB) Sharon Farrell, Golden Gate National Parks Conservancy.
• Strategic interactions across property boundaries in invasive plant control and implications for cooperation. (0.5 MB) Mark Buckley, Environmental Incentives.
• Beyond the knowledge deficit model: Changing environmental behaviors. Pete Holloran, UC Santa Cruz.

Contributed Session V – Research

• Invasive plants for sale! A survey of nursery professionals. (0.6 MB) Jennifer W. Burt*, Adrianna A. Muir, Jonah Piovia-Scott, Kari E. Veblen, Andy L. Chang, Judah D. Grossman, and Heidi W. Weiskel, UC Davis.
• Interloper’s legacy: Invasive, hybrid-derived California wild radish (Raphanus sativus) evolves to outperform its immigrant parents. (0.8 MB) Caroline E. Ridley* and Norman C. Ellstrand, UC Riverside.
• Toward understanding woody plant invasiveness: Phylogenetically independent contrasts of seedling growth traits and of performance under varying drought and nitrogen levels. (1.5 MB) Eva Grotkopp*, Jennifer Erskine Ogden, and Marcel Rejmánek, UC Davis.
• Physiological and morphological responses of pampas grass (Cortaderia selloana) to variations in water table and soil nitrogen content. (0.6 MB) Joanna L Kroon and George L Vourlitis*, CSU San Marcos.
• Measuring roots, in situ, of two late summer perennial plant species, Elymus glaucus and Grindelia camporum, and an invasive annual species, Centaurea solstitialis. (1.4 MB) Steve Young* and Joe DiTomaso, UC Davis.
• Genetic relatedness can limit reproduction in a wind-pollinated grass weed via pollen limitation. (2.4 MB) Jeffrey Firestone* and Marie Jasieniuk, UC Davis.

Laws and Regulations

• Mock pesticide use monitoring inspection: An interactive skit with Q and A. Bob Case, Cal-IPC; Chris Christofferson, Plumas National Forest; John Knapp, Catalina Island Conservancy.
• Invasive plant control and the California red-legged frog injunction. (2.5 MB) David Chang, Santa Barbara County Agricultural Commissioner’s Office.
• Use of herbicides near threatened and endangered species habitat. (2.2 MB) Polo Moreno, CA Dept. of Pesticide Regulation.

Closing Session – Emerging Issues in Invasive Plant Management

• Public policy and advocacy issues for the dedicated weed worker! (1 MB) Mandy Tu¹ and Doug Johnson², ¹The Nature Conservancy, ²Cal-IPC 
• Risky energy: Biofuels and invasive species. (1.5 MB) Jacob Barney and Joe DiTomaso, UC Davis.
• Weed alerts and tools of the trade. (2.8 MB) Joe DiTomaso, UC Davis

Posters

• The Salmon River experience: Tools of the trade. Petey Brucker and Shannon Flarity*, Salmon River Restoration Council
• Trials on chemical control of periwinkle (Vinca major) and Cape ivy (Delairea odorata). Casey Burns¹ and Stevie Adams² ; ¹ USDA Natural Resources Conservation Service (NRCS), Somis, CA; ²Ojai Valley Land Conservancy, Ojai, CA;  *Presented by Shea O’Keefe, NRCS, Escondido, CA
• Wildly successful restoration & mitigation:  A contractor’s perspective. (1 MB) John Caruana, Lisa LaMond*, Michelle Caruana. Nature’s Image
• Native plant restoration along highway rights-of-way in California. Vic Claassen* and Steve Young, UC Davis
• Coyote Creek floodplain reclamation project – Re-establishing native plant habitat. (0.3 MB) Jennifer Codianne*, and Leo Dumont, Santa Clara Valley Water District
• Managing coastal sand dunes on Camp Pendleton. (127 KB) Meghan Dinkins* and Benjamin Lardiere, MCB Camp Pendleton
• GeoWeed: A new weed data management tool. Deanne DiPietro* and Zhahai Stewart, Sonoma Ecology Center
• A look at California Department of Food and Agriculture’s pest exclusion branch noxious weed policies. Katie Filippini, California Department of Food and Agriculture
• Tributaries to the Upper Santa Clara River, Los Angeles. Elihu Gevirtz, Jennifer Jackson, and Nadine Martins. Condor Environmental Planning Services, Inc.
• Biological soil crusts and the effects of their disturbance on the germination of exotic vascular plants in coastal sage scrub.  Rebecca R. Hernandez* and Darren Sanduist, CSU Fullerton
• Controlling giant reed (Arundo donax) within the Tijuana River Valley.  Robert W. Hobbs¹*, Julie Simonsen-Marchant¹, Tito Marchant¹, and John Boland², ¹EcoSystems Restoration Associates, ²Southwest Wetlands Interpretative Association
• Restoring San Francisco’s Tidal Marshes: The Demise of Invasive Spartina. Ingrid B. Hogle*, Peggy Olofson, Erik Grijalva and Drew Kerr, San Francisco Estuary Invasive Spartina Project
• Applied ecology of Eurasian watermilfoil (Myriophyllum spicatum L.) in Fall River. (0.1 MB) Thaddeus Hunt*, Joseph M. DiTomaso, and David F. Spencer,  UC Davis.
• Thread-leaved Brodiaea weed control for habitat restoration: Implementation, maintenance and monitoring. Shirley Innecken*, Robert MacAller, Mark Dodero  RECON Environmental
• Noxious weed display of Gila County Arizona. (37 KB) Christopher Jones¹* and Karrol Braddock²¹University of Arizona Gila County Cooperative Extension, ²Master Watershed Stewards Program
• Drilling and injecting two invasive palm species. Mike Kelly¹*, Bonnie Peterson², and Stephanie Bracci³. ¹Kelly & Assoc., ²Merkle & Assoc., ³City of Metropolitan Wastewater Dept.
• The efficacy of alternative herbicides on non-native invasive woody broadleaf perennials. Janet Klein and Cerissa Hoglander*, Marin Municipal Water District
• Eradicating 25 species- Challenges and successes of switching from population to seed bank management on Catalina Island, California. (2.1 MB) John Knapp¹*, Sarah Ratay¹, and Jon Hall (formerly with the Catalina Island Conservancy), ¹Catalina Island Conservancy, Avalon, CA.
• Plant community and ecosystem effects of Arundo donax invasion. Adam Lambert^1,2 and Tom Dudley*^{2   1}Eastern Connecticut State University, ² UC Santa Barbara
• Ecology and future biocontrol of cape ivy in Southern California.  Nicole Molinari¹*, K . Seward², F. Burton³, Y. Tamagawa², T. Dudley⁴, C.D’Antonio^3,1, D. Chang⁵ & J. Balciunas⁶, ¹Ecology, Evolution & Marine Biology, ²College of Creative Studies, ³Envir. Studies, ⁴Marine Science Inst., UC Santa Barbara; ⁵Santa Barbara County Agriculture Commissioner’s Office; ⁶USDA Agricultural Research Service
• Milestone™ (aminopyralid): New research results of efficacy on noxious and invasive weeds.  Vanelle Peterson ¹, Bruce Kidd*¹, Joe DiTomaso², Carl Bell², Celestine Duncan³, Bob Wilson⁴, Joe Yenish⁵, Mike Moechnig⁶, Mary B. Halstvedt¹, and Randy L. Smith, ¹Dow AgroSciences, ²UC Davis, ³Weed Management Services, ⁴University of Nebraska, ⁵Washington State University, ⁶South Dakota State University
• Figs and bridal creeper: Two stubborn weeds that require ingenuity.  Sarah Ratay* and John Knapp, Catalina Island Conservancy
• Invasive species research at the National Park Service Pacific Coast Science and Learning Center. (17 KB) Jane Rodgers¹, Tiffany Knight², and Caroline E. Ridley*³, ¹Point Reyes National Seashore, ²Washington University, ³UC Riverside
• Effects of non-native aphids (Hyalopterus pruni) on competition between native and non-native Phragmites australis.  Yoshi Tamagawa*, Adam M. Lambert, UC Santa Barbara
• TNC’s Weed Information Management System (WIMS) – An application tool for invasive species management. (0.1 MB) Mandy Tu*, The Nature Conservancy’s Global Invasive Species Initiative, Portland, OR

Discussion and Working Group Notes

• Pest Control Applicator Licensing and Wildland Weed Control
• Crafting Better Public Outreach Strategies and Materials
• Citizen Science: The San Diego County Plant Atlas Project
• Prevention Tools: Assessing the risk for weed spread when planning ground-disturbing projects
• Weed Control Techniques
• Mapping: Update and problem solving session
• PlantRight Bootcamp for Effective Outreach to Nurseries