The 47th Annual Meeting of the Weed Science Society of America

ConferenceMonday, Feb. 5 - Thursday, Feb. 8, 2007

Symposia• Employment Opportunities for Weed Scientists and How to Make Yourself More Marketable

• Nursery Stock vs. Invasive Plant: Which is it, and why do we care?

• Using Emerging Technologies to Study Weed Biology

• Integrated Weed Management Revisited

Hyatt Regency Hotel, San Antonio, Texas • February 4 - 8, 2007

Vegetable TourSunday, Feb. 4 - 2007

WorkshopMonday, Feb. 5

Statistical Assessment of

Dose-response Curves with

Free Software

Schedule of Events2

Dear WSSA Member,

A special invitation is extended to each of you to participate inthe 47th Annual meeting of the Weed Science Society of Amer-ica. Our meeting will be held at the Riverwalk Hyatt Regency inSan Antonio, TX. Jill Schroeder, the Program Chair, and theProgram Committee have been working diligently to ensure anexcellent program for members and guests. The scientific pro-gram will feature special topic symposia and poster and oralpaper presentations on the latest weed science research. Therewill be special pre-meeting Leafy Green Vegetable tour of theWintergarden area of Texas as well as a statistic workshop onMonday . In addition, there will be a special all-day symposiumon Thursday on Nursery Stock vs. Invasive Plants. The entireprogram will be posted on the WSSA web site ( HYPERLINK"http://www.wssa.net" www.wssa.net). Symposium speakersand those who register by December 30th, 2006 will receive theirprinted programs in the mail. Please be sure to bring those pro-grams with you to the meeting.. Programs for late registrantsand on-site registrants will be available at the registration desk inSan Antonio.

Please take the time to complete and mail the meeting reg-istration and hotel reservation forms that are included in thebrochure. It's not too early to make travel plans for what prom-ises to be an excellent meeting. I look forward to seeing all of youin San Antonio. The hotel is right on the Riverwalk and theweather should be much better than it was in New York last year.Please come and help us have another excellent meeting.

Dale ShanerPresident

Schedule of EventsSunday, February 4Leafy Green Vegetable Tour 7:30 a.m. to 5:30 p.m.Board of Directors 7:30 a.m. to 5:00 p.m.

Monday, February 5Workshop: Statistical Assessment of Dose-Response Curves 7:00 a.m. to 4:00 p.m.Committee Meetings 10:00 a.m. to 3:30 p.m.Board of Directors 8:00 a.m. to 3:00 p.m.General Session & Awards Presentation 4:15 p.m. to 6:00 p.m.Awards Reception 6:00 p.m. to 8:00 p.m.

Tuesday, February 6Poster Session A 7:30 a.m. to 9:00 a.m.Paper Sessions 9:15 a.m. to 12 noon Symposium: Graduate Student Symposium: Employment Opportunities For Weed Scientists & How to Make Yourself More Marketable 10:00 a.m. to 12 noonGraduate Student Lunch and Meeting Following Symposia 12:00 noon to 1:00 p.m.Symposium: Using Emerging Technologies to Study Weed Biology: An Educational Forum 1:00 p.m. to 5:00 p.m.Paper Sessions 1:00 p.m. to 5:00 p.m.

Wednesday, February 7Board of Directors & Committee Chairs 7:00 a.m. to 8:30 a.m.Poster Session B 7:30 a.m. to 9:00 a.m.Paper Sessions 9:15 a.m. to 12 noon Symposium: Integrated Weed Management Revisited 1:00 p.m. to 5:00 p.m.Paper Sessions 1:00 p.m. to 5:00 p.m.WSSA Business Meeting 5:30 p.m. to 6:30 p.m.Reception 6:35 p.m. to 8:30 p.m.

Thursday, February 8Paper Sessions 8:00 a.m. to 12 noonSymposium: Nursery Stock vs. Invasive Plant:Which is it and Why do we Care 8:00 a.m. to 5 p.m.Paper Sessions 1:00 p.m. to 5:00 p.m.

Friday, February 9Board of Directors 7:30 a.m. to 4:00 p.m.

Contents

Schedule of Events ................................................................2

Vegetable Tour ......................................................................3

Workshop ..............................................................................4

Hotel Information....................................................................5

Travel & Reservation Information ..........................................6

Registration Form ..................................................................7

Leafy Green Vegetable Tour 3

Leafy Green Vegetable Tour

Winter is the time for vegetables, atleast in Texas! Agricultural land inTexas consists of over 150 million acres,with 600,000 acres producing horticul-tural crops. Texas is a leading producerof winter-grown vegetables, includingthe region known as the Texas Winter-garden. This region includes manycounties located in southwestern Texasnear the Rio Grande River and Mexico,and contains over 40,000 acres of veg-etables valued annually at $85 million.In addition, over 49,000 acres of pecansare produced in the region with an esti-mated value of $58 million. The cool,mild winter climate and fertile soilsoffer excellent growing conditions forspinach and other leafy greens, as wellas onions, cabbage, carrots, beets, pota-toes and green beans.

On Sunday, February 4, 2007, atten-dees at the 47th annual Weed ScienceSociety of America meeting held inSan Antonio will be able to participateon an all day tour of the Wintergardenregion to experience Texas-sized agri-cultural production. This tour willinclude visits to local producer’s farms

in Frio, Zavala and Uvalde counties, aswell as a visit to the Del Monte Agri-cultural Research Farm where herbi-cide and disease control research isconducted in cooperation with Texas A& M University and the University ofArkansas spinach breeding program.After tasting an authentic Texas BBQ,tour participants will also be offered aunique opportunity to see up closewhat it takes annually to produce mil-lions of cans of spinach and other veg-etables at the Del Monte ProcessingPlant located in Crystal City. Alongthe way participants may also be able toview Texas-sized cattle, sheep and goatranches, as well as other “wild critters”found in the region.

The tour is being coordinated by theWeed Science Society of America, theTexas A & M University AgriculturalResearch & Extension Center andTexas Cooperative Extension, as wellas support from Del Monte Foods andthe Wintergarden Spinach ProducersBoard. Tour sponsors includeAMVAC, BASF, Chemtura, DowAgroSciences, Gowan Company,

Helena Chemical, Syngenta, UAPChemical, and Wilbur-Ellis.

Cost for the tour is $20.00 per per-son. The tour bus will leave the confer-ence hotel at 7:30 a.m. and will returnat approximately 5:30 p.m.

Workshop/Nursery Stock Symposium4

Statistical Assessment of Dose-responseCurves with Free SoftwareOrganizers: Jens C. Streibig and

Christian Ritz (KVL, Copenhagen, Denmark).

Venue: Hyatt Regency Hotel, San Antonio, Texas

Time: 7 a.m. -4 p.m. February 5, 2007

Cost: $150

Course DescriptionA repeat of last year’s course. Herbicidesare designed to kill plants and their selec-tive use in crops is a question of dose. Con-sequently, use of dose-response curves isfundamental to understanding herbicideselectivity and efficacy. This principle canbe extended to other branches of weedmanagement, e.g. allelopathy, flame weed-ing, weed steaming, physical control, lasercutting and radiation and weed crop com-petition.

Dose-response curves, germinationcurves, and competition models are gen-uine non-linear. The way they are summa-rized varies and often depends on traditionand/or available statistical software ratherthan theoretical considerations of the bestway to exploit the information contained inthe data.

The aim of the course is to make partici-pants able to succinctly assess toxicity onthe basis of proper choice of dose-responsemodels and compare dose-response curvesstatistically using the free software pro-gramme R and a specific developed exten-sion package, drc, developed for weed sci-entists and freely downloadable at URL:www.bioassay.dk. Additionally the packagedrc can also be used to fit germinationcurves and user-defined functions, forexample competition models.

Course Content 1) The meaning of dose-response curves2) Installation of R and how to work with

the programme.3) Fitting and comparing dose-response

curves, e.g.: discrete versus gradual end-points, relative versus raw data, upperand lower limits, measurement of effi

cacy and index of selectivity, bioassaydesign, heterogeneity of variance,which model to choose and how toassess hormesis responses.

4) Working on handout data or, preferen-tially, own data.

ParticipantsGraduates and postgraduate students,

weed scientists in public and private insti-tutions. There will be a maximum of 25attendee s. Participants must bring theirown PC and data to get the maximum ben-efit from the course.

Course MaterialEssential course material will be e-

mailed to participants one week before thecourse and a cd with all material will be dis-tributed to participants at the course.

PrerequisiteBasic knowledge of statistics, including

regression analysis, would be preferable.Participants must bring their own PC;PC’s will not be provided.

Ritz, C. and Streibig, J.C. (2005). Bioas-say Analysis using R, J. Statist. Software,Vol. 12, Issue 5. URL: www.bioassay.dk.

Workshop at the WSSA Meeting 2007

INVASIVE PLANT SYMPOSIUMOrganizers: Alan Tasker, USDA APHIS, Riverdale, MD and NelroyJackson, Consultant, Corona, CAIn conjunction with the session chairs forTurf and Ornamentals: Scott McElroy, Wildland and Aquatic Invasives: LarsAnderson, and Regulatory Affairs: LarryFowler. Venue: Hyatt Regency Hotel,

San Antonio, TexasTime: 8:00 am - 5 pm

February 8, 2007Cost: $50 for those who are nototherwise attending the WSSA annualmeeting.

Nursery Stock vs. Invasive Plant. Which isit, and why do we care?

Objectives: Assess progress on implementing the 1999

St. Louis Accords, and provide informationof interest to local and regional retail andwholesale nurserymen, gardeners and Edu-cation/Extension personnel.

PROGRAM• The Nursery Trade and the Invasive PlantIssue: Overview. Nelroy Jackson, Ph.D. • Revising the USDA’s Plants for PlantingImport Regulations. Polly Lehtonen and A. Tschanz, USDA, APHIS, PPQ,PRIM, Riverdale, MD. • APHIS Enforcement: Smuggling Interdic-tion, Trade Compliance and Interstatemovement. Cornelia Mueller (APHIS PPQSmuggling Interdiction and Trade Compli-ance) & Cassie Arminger (APHIS Inves-tigative and Enforcement Services),Riverdale, MD. • Plant Inspection System and the Impact ofState Noxious and Invasive Plants Law onthe Nursery Industry in Texas. Awinash P.Bhatkar, Ph.D., Texas Dept of Agriculture,Coordinator for Plant Quality Programs, • The Pulling Together Initiative: A Texas-sized Partnership to Manage InvasiveSpecies. Damon Waitt, Lady Bird JohnsonWildflower Center, Austin, TX.• The 2001 St. Louis Declaration: The Vol-untary Codes of Conduct Project—whathave we learned so far? Valerie Vartanian,Missouri Botanical Gardens and The NatureConservancy, St. Louis, MO. • The Codes of Conduct: Issues for theNursery Industry. Craig Regelbrugge, ExecSec American Nursery and Landscape Asso-ciation, Washington, DC. • The Codes of Conduct for Botanic Gar-dens: The University of Washington Experi-ence. Sarah Reichard University of Wash-ington. • The Cal-HIP (California HorticulturalInvasives Prevention) process. Terri Kemp-ton, San Francisco, CA • The Gardener Perspective: If you don’tknow it, don’t grow it. Paul Cox, Ph.D.,Asst. Dir. San Antonio Botanic Garden, SanAntonio, TX. • Water Gardens: When getting Wet andgoing Wild is totally Inappropriate. MarshallMeyers, PIJAC (Pet Industry Joint AdvisoryCouncil), Washington DC. • A Green Industry Prospective on InvasiveSpecies. B. Brown and T. Wyatt, TexasNursery & Landscape Association, Austin,TX.

Please Reserve Accommodations For (please print)

Name _____________________________________________________Affiliation ________________________________________

Address ____________________________________________________________________________________________________

City/State/Zip ______________________________________________________________________________________________

Email Address ______________________________________________________________________________________________

Sharing room with_______________________________________Signature ______________________________________________One form per room

Room Type/Rates (please check appropriate box)❏ Single person $159 plus tax ❏ Double $159 plus tax Check-in: 3 p.m. • Check-out: 12 noon

Arrival date:___________________ Estimated time of arrival: ___________________ Departure date ____________________

PaymentAccommodations must be guaranteed by credit card or check made payable in the amount of one night’s lodging plus tax. Unless reser-vations are cancelled 24 hours prior to arrival date, you will be charged for the first night. Unless otherwise indicated, any deposit receivedwill be equally distributed among room occupants. ❏ Check Enclosed ❏ American Express ❏ Diners Club ❏ Discover ❏ MasterCard ❏ VISA

Card Number_____________________________________________________________ Exp. Date __________________________

Cardholder Name_________________________________________Signature ____________________________________________

DEADLINE FOR REGISTRATION IS JANUARY 15, 2007.

Reserve Your Room:• By Phone: 1-888-421-1442 Please be sure to mention Weed Science Society of America and ask for the Convention Rate• By Fax: 1-210-227-4925 • Clip and mail form to: Hyatt Regency San Antonio 123 Losoya Street San Antonio, Texas 78205

Hotel: The Hyatt Regency San Antonio islocated across from the Alamo, with stun-ning views of the Riverwalk and Old SanAntonio. The hotel’s 16 story garden atriumis built over an extension of the San AntonioRiver, which flows through the lobby via aseries of cascading waterfalls. Guest roomsinclude TV with remote control, video mes-saging, voice mail, individual climate con-trol, electronic door locks, full bath ameni-ties, iron and ironing board, AM/FM alarmclock, hair dryer, coffee maker and mini-bar.The hotel has a heated outdoor swimmingpool and whirlpool and a new 2800 sq fthotel health club offering free weights, exer-cise cycles, stair climbers, treadmills, andNautilus fitness equipment.Important Information: One of the reasons wehave been able to retain relatively low meet-

ing registration costs is that we receive freemeeting space from the hotel. However, weare charged attrition fees if we do not meetour guest room block. Thus, your reserva-tion at the Hyatt Regency rather thananother location, ensures the success of themeeting for the Society and lower registra-tion rates in the future.

Room Reservations: To make your room reser-vations, please complete the Hotel Reserva-tion Form below and return it to the addresslisted on the form or call the hotel directly at888-421-1442 or 210-222-1234. Please besure to mention you are with the Weed Sci-ence Society, to obtain the group-dis-counted rate. Our room block will be helduntil January 15, 2007. Accommodationsrequested beyond the cut-off date will beoffered based on availability.

Hotel Information 5

Travel & Registration Information6

San Antonio International AirportSAT is serviced by 16 air-carriers:Aerolitoral, American Airlines, AmericaWest, Continental, ContinentalExpress, Delta, and Delta ConnectionCarriers (ASA, Comair and Skywest),Frontier, Mexicana, Midwest, North-west, Southwest, Sky West and United.These airlines collectively offer non-stop service to 31 different markets.San Antonio International Airport isapproximately 8 miles from downtownand the River Walk and is directlylinked via US Hwy. 281.

SATRANS Airport Shuttle1331 N. Pine

Registration FeesPlease see the registration form for costs on registration, the

Leafy Green Vegetable Tour, and the Statistical AssessmentWorkshop. Take advantage of the early bird discounts and regis-ter by December 8th, 2006. Receipt of payment will be included inregistration packets to be picked up at the registration site.

How to RegisterBy MailComplete the registration form, include payment, and send to:WSSA Meeting ManagerRegistration 2007 Annual Meeting1822 West LincolnBozeman, MT 59715

On Line (for credit card registrations only)Meeting registration can be accessed and paid for directly on line

by going to the meeting registration section of the WSSA web site:http://www.wssa.net.

Fax (for credit card registrations only)Complete the registration form found in the Weed Science

Society of America’s Annual Meeting Brochure or download theregistration form from the society’s web page and fax to 406-587-2451.

QuestionsCall 1-888-995-3088. E-mail address is wssameeting@allen-

press.com.

Cancellation PolicyWritten notice of cancellation received on or before January 12,

2007 will be refunded, less a $75.00 processing fee (to be processedafter the annual meeting). NO REFUNDS WILL BE ISSUEDFOR CANCELLATIONS AFTER JANUARY 12, 2007. Par-ticipants unable to attend the conference can make substitutions.

Registration Information

San Antonio, TX 78202(210) 212-5395Reservations:(210) 281-9900(800) 868-7707Fax:(210) 212-4514HYPERLINK"http://www.saairportshuttle.com"www.saairportshuttle.comService between airport and downtownhotels $12 each way with purchase ofround trip, or $14 one way. Servicesalso available to other area destinations.ADA accessible mini-buses.

TaxicabsMetered service based on $1.60 duringdaytime hours (5 a.m.-9 p.m.); $2.60during nighttime hours (9 p.m.-5 a.m.).

Time to downtown business district isapproximately 15 minutes, average fare$19.00 - $20.00 plus tip. There is noextra charge for additional passengers.Rates subject to change. Large minivansare also available and can transport upto 7 passengers downtown for an

Travel Information

Registration Form 7

Print or type name clearly as you wish it to appear on your badge. One form per registrant (only a spouse/guest may be included on thesame form). Spouse/guest must be registered in order to attend WSSA activities. This year we have an early bird registration rate untilDecember 8th, a December 9th through January 12th rate, and a late registration/onsite rate.

First Name__________________________________________ Last Name ______________________________________________

Affiliation __________________________________________________________________________________________________

Street Address ______________________________________________________________________________________________

City________________________________________________ State_____________________ Zip/Postal Code ______________

Phone__________________________Fax_____________________________E-mail ______________________________________

Emergency Contact_____________________________________________Phone ________________________________________

Please Specify Any Special Needs________________________________________________________________________________

Spouse/Guest Name_____________________________________E-mail ______________________________________________

Registration Type Early Reg. (Dec. 8) Dec 9 - Jan.12 On-Site SubTotalsMember* $250 $350 $405 $______ Non-Member* $350 $450 $505 $______ Student* $ 75 $ 75 $ 75 $______Spouse/Guest* $ 75 $ 75 $ 75 $______*The reception is included but to facilitate planning, please indicate whether or not you will be attending the receptionsMonday evening: _____(No. of persons) Wednesday evening: _____(No. of persons)

One day registration is available for non-members and non-member students.This registration is for one day only. If you plan to attend any of the receptions or multiple days, you need to register for the entire meeting.One Day Registration (non-members only)

Please specify day ❏ Tues ❏ Wed ❏ Thurs $155 $_______

Nursery Stock vs Invasive Planat SymposiumOne day registration for nonmembers who are attendees of this workshop only $50 each $_______

Leafy Green Vegetable Tour Number ___ X $20 each $_______Sunday, February 4th, 2007, 7:30 am – 5:30 pm

WorkshopStatistical Assessment of Dose-Response Curves with Free Software $150 $_______Monday, February 5, 2007 • 7 a.m. - 4 p.m.Maximum of twenty (25) attendees. First to apply basis. See course description in brochure.

Endowment Contribution (Optional) $_______TOTAL $_______

Forms of PaymentTotal Check Amount: $_______________________Check Number

❏ MasterCard ❏ VISA Credit Card Number_________________________________________Exp. Date ________________

Signature_____________________________________________Print Name as on Card ________________________________

Do not send cash. Please make checks payable to WSSA. All fees must be paid in US funds and drawn on US banks. Cancellation Pol-icy: Written notice of cancellation received on or before January 12, 2007 will be refunded minus a $75 processing fee (to be processedafter the annual meeting). No refunds will be issued for cancellations after January 12, 2007. Substitutions of registrants are allowed.

First Class Mail

U.S. Postage

PAIDPermit #1

Lawrence, KS 66044Weed Science Society of AmericaAnnual Meeting RegistrationP.O. Box 7050Lawrence, KS 66044-7050

Early Bird Registration by December 8Pre-Registration by January 12 for the WSSA 47thAnnual Meeting in San Antonio, Texas