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CWSS Conference Proceedings-2012 2012 Proceedings of the California Weed Science Society Volume 64 Papers Presented at the 64th Annual Conference January 23, 24, & 25, 2012 Fess Parker’s DoubleTree Resort 633 East Cabrillo Boulevard Santa Barbara, California 2011/2012 Officers and Board of Directors: Michelle Le Strange, President Chuck Synold, Vice President/Program Chair Steve Fennimore, Secretary Dave Cheetham, Past President Wes Croxen, Director Bruce Kidd, Director Milt McGiffen, Director Rick Miller, Director Richard Smith, Director Rob Wilson, Director Judy Letterman, Business Manager/Treasurer Preface The proceedings contain contributed summaries of papers presented at the annual conference as well as the minutes of the annual business meeting, year-end financial statement, award winners, sponsors, exhibitors, and names, addresses and phone numbers and email addresses given by permission of those attending the meeting. Table of Contents California Weed Science Society and the Story of the Short Handled Hoe .............................................. 7 Norman D. Akesson, University of California, Davis 2012/2013 Board of Directors ..................................................................................................................... 9 2012 Conference Sponsors ........................................................................................................................ 10 2012 Conference Exhibitors ..................................................................................................................... 11 2012 Honorary Member – Stephen F. Colbert .......................................................................................... 12 2012 Award of Excellence Recipient – Rob Wilson................................................................................... 13 2012 Student Awards and Scholarship Recipients .................................................................................. 14 In Memoriam – Alvin “Jack” Weems and Sam Armentrout ....................................................................... 18 California’s Growing Marijuana Business Impacting Agriculture ....................................................... 20 Article written by Harry Cline, Western Farm Press, February 8, 2012 Oral Paper Summaries WEED SCHOOL: THE ENVIRONMENTAL FATE OF HERBICIDES Chairs: Carl Bell and Guy Kyser Off-Site Movement of Herbicides ............................................................................................................... 22 Brad Hanson, University of California, Davis Herbicide Translocation and Metabolism ................................................................................................... 26 Scott Steinmaus, Ph.D, California State Polytechnic University, San Luis Obispo STUDENT PAPERS Chair: Rob Wilson Weed Population Dynamics in Overhead and Sub-surface Drip Irrigated Conservation Tillage Cropping Systems ...................................................................................................................................... 30 Joy Hollingsworth & Anil Shrestha, California State University, Fresno; Jeff Mitchell, UC Davis; Kurt Hembree, UC Cooperative Extension, Fresno County STUDENT POSTERS Chair: Rob Wilson Development of a Method to Evaluate Mortality of Black Mustard (Brassica nigra) Seeds Exposed to Volatile Compounds From Composted Greenwaste ................................................................. 32 DeeAnn Kroeker, Stacy Betts, and Ruth Dahlquist, Fresno Pacific University, Fresno; James Stapleton, UC Kearney Agricultural Center, Parlier 1 2012 CWSS Proceedings A Field Trial to Evaluate Deleterious Effects of Composted Municipal Greenwaste and Soil Solarization on Black Mustard Seeds.......................................................................................................... 33 Kate Hernandez, Stacy Betts, and Ruth Dahlquist, Fresno Pacific University, Fresno; Megan Marshall, Pennsylvania State University, University Park, PA; Jean VanderGheynst, Chris Simmons, and Joshua Claypool, UC Davis; James Stapleton, UC Kearney Agricultural Center, Parlier INDUSTRY POSTERS Chair: Rick Miller Solar Tents for On-Site Sanitation and Eradication of Rogued, Weedy Plant Propagative Materials .................................................................................................................................................... 34 James J. Stapleton, UC Kearney Agricultural Center, Parlier GENERAL SESSION: THE VALUE OF WEED CONTROL: WHAT’S IT ALL WORTH? Chair: Michelle Le Strange The Global Vaue of Herbicides .................................................................................................................. 35 Leonard Gianessi, Crop Protection Research Institute, CropLife Foundation Assessing the Return to Weed Control Expenses in California Agriculture ............................................... 37 Karen Klonsky, Extension Specialist, Agricultural & Resource Economics, UC Davis AGRONOMY Chairs: Andre Biscaro and Jesse Richardson New Herbicides for Small Grains ............................................................................................................... 40 Jesse M. Richardson, Dow AgroSciences, Hesperia Weed Control Challenges in Desert Areas of Southern California ............................................................. 41 Tim Hays, Wilbur-Ellis Company, Lancaster Weed Control Options for Corn Production ............................................................................................... 45 Steve Wright, UCCE Tulare and Kings Counties Recent Developments in Alfalfa Weed Control .......................................................................................... 48 Steve Orloff, UCCE Siskiyou County Innovations in Cotton Weed Management .................................................................................................. 51 William McCloskey, University of Arizona, Tucson, AZ AQUATICS Chairs: Mike Blankinship and Dave Blodget Aquatic Pesticide Permit Update ................................................................................................................ 56 Michael S. Blankinship, Blankinship & Associates, Inc., Davis, CA Ditch Bank Weed Control ........................................................................................................................... 57 Jason Robbins, Target Specialty Products, Chowchilla 2012 CWSS Proceedings 2 South American Spongeplant is Invading California ................................................................................... 58 Patrick Akers, California Department of Food and Agriculture, Sacramento Egaria densa Weed Control in the Sacramento-San Joaquin Delta .............................................................. 59 Scott Shuler, SePRO Corporation, Carmel, IN NURSERY AND GREENHOUSE Chairs: Julie Newman and Karen Robb Weed Control Practices in Nurseries .......................................................................................................... 60 Bruce Kidd, Consultant, Murrieta Rotation Management Strategies for Nursery Weed Control ..................................................................... 63 Todd Burkdoll, BASF, Visalia Evaluation of Herbicides for Weed Control Efficacy and Crop Safety in Field Production of Nursery Fruit and Nut Trees ....................................................................................................................... 64 Joi Abit, University of California, Davis Potential of Precision Weed Control ........................................................................................................... 69 Richard Smith, University of California Cooperative Extension, Monterey County Steaming and Other Management Practices for Pre-Plant Weed Control in Nurseries ............................... 73 Steven A. Fennimore, University of California, Davis ROADSIDES, UTILITIES AND INDUSTRIAL SITES Chairs: Will Harrison and Lonnie Munson Indaziflam: A New Residual Herbicide for Roadside Weed Control ......................................................... 80 Chris Olsen, Bayer Environmental Science Maximizing the Efficiency of Hand Weed Spraying .................................................................................. 81 Carl Bell, UCCE San Diego County TURFGRASS AND LANDSCAPE Chair: Jim Baird Controlling Annual Bluegrass in Bentgrass Putting Greens ....................................................................... 82 James H. Baird, University of California, Riverside Poa annua Control Strategies in Cool Season Grasses ............................................................................... 83 Mark Mahady, Mark M. Mahady and Associates, Carmel Valley Pre-emergent Poa annua Control in Non-overseeded Bermudagrass ......................................................... 88 Hans C. Olsen, Bayer Environmental Science Turf and Landscape Weed Control, Toward Integrated Weed Management .............................................. 89 Mike Lees, Dow AgroSciences, Granite Bay 3 2012 CWSS Proceedings Weed Control at Turf Establishment with Tenacity® Herbicide ................................................................ 90 Dean Mosdell, Field Tech Manager, Syngenta Lawn and Garden TREE AND VINE Chairs: Ryan Allen and Brad Hanson Effects of Spray Coverage and Nozzle Selection on Weed Control ........................................................... 92 Kurt Hembree, UCCE, Fresno County Benefits and Drawback of In-Row Cover Crops in Vineyards ..................................................................
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