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55th Meeting Weed Science Society of America Location of Special Committees & Activities...... 1 Local Arrangements Committee...... 1 President’s Welcome...... 2 The 2015 WSSA Program...... 4 2015 Program Committee...... 7 General Information...... 7 Committee Meetings...... 11 Summary of 2015 Program...... 13 Complete Program...... 17 Meeting Room Maps...... 65–67 Author Index...... 68 Keyword Index...... 84 WSSA Board of Directors...... 93 WSSA Founder Award...... 95 WSSA Original Honorary Members...... 95 WSSA Fellows...... 95 WSSA Honorary Members...... 100 WSSA Past Presidents...... 101 Notes...... 103 Personal Time Schedule...... 104 Sustaining Members...... Inside Back Cover

Location of Special Committees and Activities February 2015 Photo Contest Judging*...... Triple Crown A (Hilton) Registration (Including Guests)..... Bluegrass Prefunction (LCC) Board Meeting (Sat/Sun)...... Bluegrass Room (Hilton) Board Meeting (Thurs)...... Bluegrass Room (Hilton)

Local Arrangements Committee 2015-Lexington, Kentucky Chair...... Mike Barrett Committee...... JD Green, Bill Witt, Charles Slack ...... Erin Haramoto, Jim Martin, Sara Lawson ...... Joe Omielan, Tara Burke, Chad Brabham

*Digital files must be delivered to Photo Contest Chair, Michael DeFelice, via email by January 30, 2015. Email: [email protected]

1 WELCOME

The 55th annual meeting of the Weed Science Society of America will be held at the Hilton Lexington Downtown and Lexington Convention Center beginning Monday February 9 through Thursday February 12, 2015. The hotel and conference center are across the street from each other, and are located in downtown Lexington, where there are many places to shop and several nice restaurants nearby. Our impression after holding our summer Board meeting at the Hilton is that it is a great venue for our conference.

WSSA Program Chair Dallas Peterson has been putting to- gether the agenda for the meeting. There is a pre-conference tour called “Horsing Around in Kentucky”. It will be Sun- day afternoon and consists of a tour of the Adena Springs Horse Farm and the Kentucky Horse Park. This guided tour will provide an in-depth view of how championship race horses live and a perfect way to see why Kentucky is the “horse capital of the world.”

The meeting itself will open with a very interesting general session and awards presentation Monday afternoon, fol- lowed by a society reception. There are two outstanding symposia scheduled for the 2015 meeting. The first is a summary of the Resistance Summit II entitled “Are We Going to Do the Same Thing and Expect a Differ- ent Outcome?” and the second one is a look at the future of molecular research in Weed Science, called “Integration of ‘Omics’ Approaches in Weed Science Research”. Finally, the graduate students have organized a workshop entitled “Preparing Students for Work after Graduate School,” which should be of interest to all the students attending the conference. The workshop will cover many of the areas of employment within the Weed Science community, including academics, private industry, and government agencies. The graduate students have also organized a lunch discussion that includes all three Editors of the WSSA journals. The Editors will discuss what it takes to publish in our journals and also important considerations for peer-reviewing other manuscripts. The entire program will be posted on the WSSA web site (www.wssa.net) in advance of the meeting.

For the first time, WSSA will have a graduate student poster contest. Thus far we have 50 students that have entered the contest. Our students are our future and the future looks bright.

2 3 WSSA is a thriving organization with three solid jour- nals and fantastic representation in Washington DC. Our membership is down from past years because of the con- solidation of industry and a few other reasons, but we are more engaged in so many areas and have accomplished a remarkable number of things in the past few years. We are solid financially due to exceptional management from Joyce Lancaster, our Treasurers, financial advisors, and a fabulous Board of Directors. As other Presidents have noted, it is truly and honor to not only be a part of this society, but to serve it as your President. I look forward to seeing you in Lexington.

Joe DiTomaso President, Weed Science Society of America

2 3 THE 2015 WSSA PROGRAM

Welcome to the 2015 WSSA annual program at the Hilton Lexington Downtown and Lexington Convention Center. The venue is outstanding and we have an excellent program planned for the meeting. A pre-conference tour will be offered on Sunday afternoon to the Adena Springs Horse Farm and The Kentucky Horse Park for those that want to learn more about the local horse industry in Kentucky.

The General Session and Awards Ceremony will begin at 4 pm in the Bluegrass Room of the Convention Center. Our first keynote speaker will be Mr. Steve Johnson, who will visit with us about the thoroughbred industry and its impact on the agricultural economy of the Lexington area. Mr. Johnson owns the Silver Springs Stud Farm and has served the Kentucky horse industry in many capacities, including a term as Director of the Kentucky Thoroughbred Asso- ciation. Our second keynote speaker will be Dr. Rosalind James, USDA-ARS National Program Leader for Invasive Pests of Crops. Dr. James will speak about the The Future of Weed Science Research in USDA-ARS. The Awards Ceremony will include presentation of the WSSA Awards, Fellow, and Honorary Member recognitions.

Following the Awards Ceremony, WSSA will host an Awards Reception beginning at 6:00 pm. All registered attendees are welcome and encouraged to attend to con- gratulate the award winners and renew old acquaintances. Please be sure spouses and friends that accompany you have registered so that they may participate in this fun event.

The program this year consists of 305 presentations, of which 135 will be posters. There will be two poster ses- sions with authors present: Tuesday and Wednesday morn- ings from 8:00 to 10:00 am. Authors of even numbered posters should be present at the Tuesday poster session and authors of odd numbered posters should be present at the Wednesday session. Coffee will be available during the poster sessions to help facilitate and stimulate discussion. Oral presentations will begin at 10:00 am on Tuesday and Wednesday and continue through the afternoon sessions. Oral presentations will begin at 8:00 am on Thursday morn- ing and be completed by noon.

Two outstanding symposia will be conducted during this year’s meeting. The first symposium is “Integration of

4 5 Omics’ Approaches in Weed Science Research”. The symposium was organized by Nishanth Tharayil and will start on Tuesday morning and conclude Tuesday afternoon. The symposium will examine different omics research platforms and how they can be utilized in basic weed sci- ence research. The second symposium is an overview of the Herbicide Resistant Summit II entitled “Are We Going to do the Same Thing and Expect a Different Result”. The symposium was organized by David Shaw and will be on Wednesday afternoon. The symposium will examine eco- nomic and sociologic factors affecting weed management decisions and potential incentives or regulatory actions that might influence weed management decisions to help mitigate herbicide resistance issues.

The Graduate Student Luncheon and business meeting will be on Tuesday from noon to 1:30 pm, with WSSA publi- cation editors in attendance to discuss publishing in the WSSA journals. The WSSA Graduate Student Association is also hosting a Graduate Student Workshop on Wednesday morning from 10:00 to 11:30 am focusing on “Preparing Students for Work After Graduate School”. The workshop was organized by Katelyn Venner and will include represen- tatives from academia, industry, and government agencies with varying degrees of experience to discuss interviewing, job responsibilities, and transitioning from graduate school into different careers in weed science. The workshop will have an informal format with opportunity for questions, discussion, and networking.

One new event incorporated into the meeting this year is a Graduate Student Poster contest. Contest posters will be divided into different groups based on subject areas and evaluated on appearance, organization, content, presenta- tion, and student interaction. Poster contest winners and awards will be presented at the WSSA business meeting on Wednesday afternoon.

The WSSA Business Meeting will be held Wednesday afternoon from 5-6 pm where President Joe DiTomaso and other WSSA officers and committee chairs will provide an overview of the state of the society and activities.

Special thanks to our Local Arrangements Chair Michael Barrett, with assistance from Bill Witt, for helping arrange the preconference tour and the keynote speaker. Please take time to also thank the section chairs as you see them

4 5 during the meeting: Jonathon Huff, Calvin Odero, Patrick McCullough, Joe Omielan, John Madsen, Chris Dionigi, Todd Baughman, Susan Sun, Carlene Chase, Roger Becker, Roland Beffa, Harry Strek, Anil Shrestha, Steve Gylling, and Reginald Fletcher. Also, let Joyce Lancaster and Tony Ballard know how much you appreciate the work they do, not only on the annual meeting, but on all of the Society’s business.

I hope you find this year’s annual meeting especially useful and rewarding. I have attempted to schedule something of interest for everyone every day.

Dallas Peterson 2015 Program Chair

6 7 2015 Program Committee

General Program Chair...... Dallas Peterson Vice Chair...... Kevin Bradley Agronomic Crops...... Jonathan Huff Horticultural Crops...... Calvin Odero Turf and Ornamentals...... Patrick McCullough Pastures, Rangelands, Forests, & Right-of-Ways..... Joe Omielan Wildland and Aquatic Invasives...... John Madsen Regulatory Aspects...... Chris Dionigi Teaching and Extension...... Todd Baughman Formulation, Adjuvant, & Application Technology.....Susan Sun Weed Biology and Ecology...... Carlene Chase Biocontrol of Weeds...... Roger Becker Physiology...... Roland Beffa Soil and Environmental Aspects...... Harry Strek Integrated Weed Management...... Anil Shrestha Sustaining Member Exhibits Session...... Steve Gylling Poster Sessions...... Reginald Fletcher Student Poster Contest...... Darrin Dodds, Kate Venner

General Information

Hotel: This year the WSSA is utilizing a combination of the Hilton Lexington Downtown for guest rooms and com- mittee meetings and the Lexington Convention Center for the primary meeting events.

Hilton Lexington Downtown Overlooking Lexington’s Triangle Park with its cascading fountains, the Hilton Lexington/Downtown hotel is con- nected via skywalk to The Lexington Center, with easy access to Rupp Arena, Lexington Convention Center, shops at Lexington Center and the Shoppes at Victorian Square. Combining urban sophistication and warm Bluegrass hos- pitality, the hotel is an oasis in the city.

Inspired by the rich history of the Bluegrass, the stylish guest rooms overlook Triangle Park or Downtown Lex- ington.

Lexington Convention Center Conveniently located in the center of the downtown and within a day’s drive of 75% of the country’s population, the Lexington Convention Center is a beautiful and versatile multi-purpose event facility.

6 7 The facility offers comfort and function as a dynamic venue for public expos, meetings, banquets, trade shows and con- ventions. In addition to the 66,000 square feet of dedicated exhibit space, 40,000 square feet of elegant meeting spaces, mall and food court, the Lexington Convention Center is attached to both the Hyatt Regency and Hilton Hotel.

The Lexington Convention Center is in the heart of Lexing- ton’s historic and vibrant downtown. Retail boutiques, unique restaurants, night clubs, and many other entertainment opportunities are all within easy walking distance in a city famous for its scenic beauty, world-famous Thoroughbred farms, small-town charm and genuine hospitality. Lexington offers the business and recreational traveler a delightful combination of sophistication, culture, history, and fun. Reservations One of the reasons we have been able to retain relatively low meeting registration costs is that we receive free meet- ing space from the hotel if we achieve our contracted guest room minimum. However, we are charged attrition fees & meeting space rental fees if we do not meet this threshold. Thus, your reservation at the Lexington Hilton Downtown, rather than another location, ensures the success of the meeting for the Society and enables us to keep registration rate increases to a minimum in the future.

As part of our contract, we’ve negotiated in complimentary guestroom internet for all attendees staying at the hotel, complimentary self-parking, and a 50% discount on valet parking. The group rate for a standard guest bedroom is $156 per night plus tax.

The Lexington Hilton is making available 25 “student rooms” each night at the reduced rate of $99.00 single oc- cupancy/double occupancy. This is first-come, first-served so you need to reserve these early. Student reservations will be cross-checked with the registrant list to ensure that only those who qualify for the rooms obtain them. Valid student ID’s will need to be presented upon check-in.

Regular Members: To make reservations online, visit: http://www.hilton. com/en/hi/groups/personalized/L/LEXDTHF-WSSA 15-20150205/index.jhtml?WT.mc_id+POG

The Group Code is WSSA15

8 9 Student Members: To make reservations online visit: http://www.hilton. com/en/hi/groups/personalized/L/LEXDTHF-WSSA ST-20150207/index.jhtml?WT.mc_id=POG

The Group Code is WSSAST

If you’d prefer to reserve your room via phone, please call: 1-859-281-3739—be sure to mention “WSSA” in order to get the discounted rate.

Transportation Minutes from the Blue Grass Airport with easy access from US-25 BR S/US-421 BR S/US-60 BR E, The Hilton Lex- ington Downtown hotel offers a central location in the heart of the city that is easy to get to! You can take a taxi from the airport to the hotel. The hotel also has a complimentary airport shuttle. Hilton guests can call 859-281-9000 when you land or use the Hilton Phone in Baggage Claim. Since there is only one shuttle there may be something of a wait if the shuttle has recently departed the airport for the hotel. You can sign up for the departure back to the airport at the hotel bell stand.

Parking Onsite parking is available to WSSA meeting registrations complimentary for self parking and there is a 50% discount for valet parking. Garage clearance is 6’ 6 “ H. Oversized vehicle parking is available in a separate lot. (Price depends on size of vehicle - call for details.)

From the Blue Grass Airport: Distance from Hotel: 6 mi. Drive Time: 15 min • Turn L onto Man O’ War • Take a Right onto Versailles Rd • Then a Left onto N. Broadway • Next take a Right onto Vine • The Hilton Lexington Downtown Hotel is on the im- mediate Left

From Knoxville or Huntington WVa Distance from Hotel: Drive Time: 2.5 hours • From I-64 West/I-75 North take exit 115 toward BG PARKWAY / AIRPORT / LEXINGTON • At the bottom of the exit ramp, take a LEFT toward LEXINGTON on Newtown Pike

8 9 • Stay on Newtown Pike for approximately 3.3 miles • Turn LEFT onto West Main Street or US-25 BR • Hotel is approximately 1/2 mile on the left just past Triangle Park

Program Booklet and Abstracts All those registering for the annual meeting will receive a program booklet. All registrants will receive programs at the meeting registration desk. To find the time and location of specific papers, look up the author in the author index in the back of the program.

Note Regarding Locations: For the first time, the annual meeting events will be at both the Hilton Downtown Lex- ington and the Lexington Convention Center. The location for each event is either designated as (Hilton) or (LCC)…for Lexington Convention Center. For the most part, committee meetings will be held at the Hilton on Monday and main sessions will be held at the Lexington Convention Center.

10 11 COMMITTEE MEETINGS SATURDAY, February 7 7:00 a.m. – 5:00 p.m. Board of Directors...... Bluegrass Room (Hilton)

SUNDAY, February 8 7:00 a.m. – 1:00 p.m. Board of Directors...... Bluegrass Room (Hilton)

MONDAY, February 9 6:30 a.m. – 8:00 a.m. WSSA Board and Committee Chairs Breakfast ...... Lily of the Valley Room (Hilton) 8:00 a.m. – 9:00 a.m. IPSM Editorial Board (P4)..... Bluegrass Salon A (Hilton) 8:00 a.m. – 10:00 a.m. Science Policy Committee (E2) ...... Bluegrass Salon B (Hilton) 8:00 a.m. – 10:00 a.m. Herbicide Resistant Plants Committee (E12) ...... Triple Crown B (Hilton) 9:00 a.m. – 10:00 a.m. Weed Technology Editorial Board (P3) ...... Bluegrass Salon A (Hilton) 9:00 a.m. – 10:00 a.m. Sustaining Membership (F5)...... Arabian (Hilton) 10:00 a.m. – 11:00 a.m. Weed Science Editorial Board (P2) ...... Bluegrass Salon A (Hilton) 10:00 a.m. – 11:00 a.m. Terminology Committee (P22)....Triple Crown A (Hilton) 10:00 a.m. – 12:00 noon Research & Competitive Grants (E6) ...... Triple Crown C (Hilton) 10:00 a.m. – 12:00 noon Environmental Aspects of Weed Management (E8) ...... Crimson Clover (Hilton) 10:00 a.m. – 12:00 noon for Minor Uses...... Blackberry Lily (Hilton)

10 11 10:00 a.m. – 12:00 noon Herbicide Resistance Education (E12b) ...... Bluegrass Salon B (Hilton) 11:00 am – 12:00 noon Publications Board (P1)...... Bluegrass Salon A (Hilton) 1:00 pm – 3:00 pm Public Awareness Committee (E13) ...... Blackberry Lily (Hilton) 1:00 pm – 3:00 pm Website Committee (E14)...... Arabian (Hilton) 1:00 pm – 3:45 pm Photo Contest Committee (W3j) ...... Triple Crown A (Hilton)

WEDNESDAY, February 11 6:30 a.m. – 8:00 a.m. President’s Breakfast with Regional Presidents ...... Lily of the Valley Room (Hilton) 7:00 a.m. – 9:00 a.m. Finance Committee (F2)...... Thoroughbred 8 (LCC)

THURSDAY, February 12

12:00 Noon – 3:00 p.m. Board of Directors...... Bluegrass (Hilton)

WSSA Committee meetings are open to all WSSA mem- bers. However, some non-WSSA committee meetings (e.g., Herbicide Resistance Action Committee) are open only to invited participants. If in doubt, check at the beginning of the meeting with the Committee Chair.

Contact Joyce Lancaster of Allen Press, Inc. at WSSA [email protected] to arrange space for commit- tee meetings or room assignments not scheduled in this program.

12 13 SUMMARY OF 2015 PROGRAM SATURDAY MORNING, February 7 7:00 a.m. – 5:00 p.m. Board of Directors...... Bluegrass (Hilton)

SUNDAY MORNING, February 8 7:00 a.m. – 1:00 p.m. Board of Directors...... Bluegrass (Hilton)

MONDAY MORNING, February 9 7:00 a.m. – 8:00 a.m. WSSA Board & Committee Chairs Breakfast ...... Lily of the Valley (Hilton) 9:00 a.m. – 12:00 noon Registration...... Bluegrass Prefunction (LCC)

MONDAY AFTERNOON, February 9 1:00 noon – 3:45 p.m. Photo Contest Judging...... Triple Crown A (Hilton) 1:00 p.m. – 4:00 p.m. Registration...... Bluegrass Prefunction (LCC) 4:00 p.m. – 6:00 p.m. General Session and Awards Presentations...... Bluegrass Ballroom 1 (LCC) 6:00 p.m. – 8:00 p.m. WSSA Welcome and Awardees Reception ...... Bluegrass Prefunction (LCC)

TUESDAY MORNING, February 10

7:00 a.m. – 12:30 p.m. Registration...... Bluegrass Prefunction (LCC) 7:45 a.m. – 8:00 a.m. Poster Session Business Meeting...... Bluegrass Ballroom 2 (LCC) 8:00 a.m. – 10:00 a.m. Poster Session...... Bluegrass Ballroom 2 (LCC) (Authors of even numbered posters will be present) 10:00 a.m. – 5:00 p.m. Exhibits...... Bluegrass Ballroom 2 (LCC)

12 13 10:00 a.m. – 5:00 p.m. Posters on display without authors ...... Bluegrass Ballroom 2 (LCC) 10:15 a.m. – 12:00 noon Symposium: Integration of ‘Omics’ Approaches in Weed Science Research...... Bluegrass Ballroom 1 (LCC)

10:00 a.m. – 12:00 noon 1. Agronomic Crops...... Thoroughbred 1 (LCC) 10:00 a.m.. – 12:00 noon 4. Pasture, Rangeland, Forests, and Rights of Way ...... Thoroughbred 2 (LCC) 10:00 a.m. – 11:15 am 8. Formulation, Adjuvant, and Application Technology ...... Thoroughbred 3 (LCC) 11:15 a.m. – 12:15 noon 6. Regulatory Aspects...... Thoroughbred 3 (LCC) 12:00 noon – 1:30 p.m. Graduate Student Luncheon and Business Meeting ...... Thoroughbred 4 (LCC)

TUESDAY AFTERNOON, February 10 1:30 p.m. – 4:30 p.m. Symposium: Integration of ‘Omics’ Approaches in Weed Science Research...... Bluegrass Ballroom 1 (LCC) 1:30 p.m. – 5:00 p.m. 1. Agronomic Crops...... Thoroughbred 1 (LCC) 1:30 p.m. – 4:00 p.m. 5. Wildland and Aquatic Invasive Plants ...... Thoroughbred 3 (LCC) 1:30 p.m. – 5:00 p.m. 13. Integrated Weed Management ...... Thoroughbred 2 (LCC) 4:15 p.m. – 5:00 p.m. 10. Biocontrol of Weeds...... Thoroughbred 3 (LCC)

WEDNESDAY MORNING, February 11 6:30 a.m. – 8:00 a.m. Regional Presidents Breakfast ...... Lilly of the Valley (Hilton) 8:00 a.m. – 1:00 p.m. Registration...... Bluegrass Prefunction (LCC)

14 15 8:00 a.m. – 10:00 a..m. Poster Session...... Bluegrass Ballroom 2 (LCC) (Authors of odd-numbered posters will be present) 8:00 a.m. – 12:00 noon Sustaining Members Exhibits...... Bluegrass Ballroom 2 (LCC) 10:00 a.m. – 12:00 noon 1. Agronomic Crops...... Thoroughbred 1 (LCC) 10:00 a.m. – 12:00 noon 9. Weed Biology and Ecology....Thoroughbred 3 (LCC) 10:00 a.m. – 12:00 noon 11. Physiology...... Thoroughbred 5-7 (LCC) 10:00 a.m. – 12:00 noon Graduate Student Workshop...... Thoroughbred 4 (LCC)

WEDNESDAY AFTERNOON, February 11 1:00 p.m. – 5:00 p.m. Symposium: Herbicide Resistance Summit II – Are We Going to Do the Same Thing and Expect a Different Result?...... Bluegrass Ballroom 1 (LCC) 1:00 p.m. – 4:45 p.m. 2. Horticultural Crops...... Thoroughbred 2 (LCC) 1:00 p.m. – 3:15 p.m. 3.Turf and Ornamental Crops.....Thoroughbred 3 (LCC) 1:00 p.m. – 4:30 p.m. 9. Weed Biology and Ecology.Thoroughbred 5-7 (LCC) 3:30 p.m. – 5:00 p.m 12. Soil and Environmental Aspects ...... Thoroughbred 3 (LCC) 5:00 p.m. – 6:00 p.m. WSSA Business Meeting...... Thoroughbred 4 (LCC) THURSDAY MORNING, February 12 8:00 a.m. – 11:00 a.m. Registration...... Bluegrass Prefunction (LCC) 8:00 a.m. – 11:00 a.m. Posters on Display without Authors ...... Bluegrass Ballroom 2 (LCC) 8:00 a.m. – 11:00 a.m. Sustaining Members Exhibits ...... Bluegrass Ballroom 2 (LCC)

14 15 8:00 a.m. – 11:30 a.m. 1. Agronomic Crops...... Thoroughbred 1 (LCC) 8:00 a.m. – 11:30 a.m. 11. Physiology...... Thoroughbred 5-7 (LCC) 8:30 a.m. – 11:30 a.m. 7. Teaching and Extension...... Thoroughbred 2-3 (LCC) 12:00 noon – 1:00 p.m. Dismantle Posters and Exhibits THURSDAY AFTERNOON, February 12 12:00 Noon – 3:00 p.m. WSSA Board of Directors...... Bluegrass A&B (Hilton)

16 17 COMPLETE PROGRAM

MONDAY PM, February 9 GENERAL SESSION Location: Bluegrass Ballroom 1, (LCC) Chair: Dallas Peterson 4:00 p.m. Introduction and Announcements, Dallas Peterson, President-Elect, WSSA 4:10 p.m. Welcome: Dr. William Witt, Professor Emeritus, University of Kentucky 4:20 p.m. The Kentucky Bluegrass Region – Source of the Horse: Mr. Steve Johnson, Silver Springs Stud Farms, Paris, KY. 4:40 p.m. The Future of Weed Science Research in USDA-ARS: Dr. Rosalind James, USDA-ARS National Program Leader, Invasive Pests of Crops, Washington, DC 5:00 p.m. Presentation of Awards, Dwight Lingenfelter, Chair, Awards Committee, WSSA 5:40 p.m. Presentation of Fellow and Honorary Member Awards, Krishna Reddy, Chair, Fellows and Honorary Member Subcommittee, WSSA 6:00 p.m. - 8:00 p.m. WSSA Awardee Reception and Member Social Location:...... Bluegrass Prefunction (LCC)

TUESDAY AM to THURSDAY February 9 to 12 WSSA SUSTAINING MEMBERS EXHIBITS SESSION

Location: Bluegrass Ballroom 2 (LCC) Chair: Steve Gylling, Gylling Data Management 7:45 a.m. Tuesday Sustaining Members Exhibits Session meeting to elect a Chair-Elect.

16 17 Setup 12:00 noon - 3:00 p.m. Monday 8:00 a.m. - 5:00 p.m. Tuesday, Wednesday 8:00 a.m. - 12:00 noon Thursday Please remove exhibits by 1:00 p.m. on Thursday

Sustaining Member Exhibitor and Representative Gylling Data Management...... Steve Gylling LABServices...... James Steffel

TUESDAY AM, February 10 Location: Bluegrass Ballroom 2 (LCC) Chair: Reginald Fletcher

Posters may be set up on Monday from 12:00 noon until 3:00 pm prior to the General Session. Authors should remove Posters before 1:00 pm on Thursday afternoon. 7:45 a.m. – 8:00 a.m. Business Meeting to elect Chair-Elect 8:00 a.m. – 10:00 a.m. Authors of even-numbered posters will be present. 10:00 a.m. – 5:00 p.m. Posters open for viewing without authors

TUESDAY MORNING FEBRUARY 10 Section 1. Agronomic Crops

*PRESENTER † STUDENT POSTER CONTEST

†Performance of Sweet Sorghum Under Different Planting Densities, Water Regimes, and N Levels. V. Singh*1, N. R. Burgos1, L. Earnest2, S. Singh1, L. Martin2, S. Abhugo1, L. Estorninos1; 1University of Arkansas, Fayetteville, AR, 2University of Arkansas, Rohwer, AR (1)

†Soybean Row Width, Seeding Rate, and Herbicide Strategy Effect on Cumulative Intercepted Photosynthetically Active Radiation and Weed Control. T. R. Butts*1, J. K. Norsworthy2, G. R. Kruger3, L. Sandell4, B. G. Young5, L. E. Steckel6, M. M. Loux7, K. Bradley8, V. M. Davis1; 1University of Wisconsin, Madison, WI, 2University of Arkansas, Fayetteville, AR, 3University of Nebraska-Lincoln, North Platte, NE, 4Valent Corporation,

18 19 Lincoln, NE, 5Southern Illinois University, Carbondale, IL, 6University of Tennessee, Jackson, TN, 7Ohio State University, Columbus, OH, 8University of Missouri, Columbia, MO (2)

†Influence of Planting Date on Peanut Response to Flumioxazin and Flumioxazin plus Pyroxasulfone. M. D. Inman*, D. L. Jordan, D. Johnson; NCSU, Raleigh, NC (3)

Differential Response of Teosinte and Flint, Sweet, and Dent Corn Varieties to Weed Competition. S. A. Hansen*1, S. A. Clay2, D. Horvath3, S. Flint-Garcia4; 1South Dakota State University, Brookings, SD, 2SDSU, Brookings, SD, 3USDA-ARS, Fargo, ND, 4USDA ARS, Columbia, MO (4)

†Corn, Soybean, and Wheat Yields in an Organic Rotational No-till System during the 3-year Transition. C. L. Keene*1, W. S. Curran1, J. M. Wallace2, S. Mirsky3, M. J. VanGessel4, M. Ryan5, M. Barbercheck1; 1Penn State University, University Park, PA, 2Pennsylvania State University, State College, PA, 3USDA, Beltsville, MD, 4University of Delaware, Georgetown, DE, 5Cornell University, Ithaca, NY (5)

Echinochloa Colona Seedling Emergence on Soybean Fallow Under No-tillage System. H. A. Acciaresi*1, G. Picapietra2; 1Instituto Nacional Tecnologia Agropecuaria, Pergamino, Argentina, 2UNNOBA-INTA, Pergamino, Argentina (6)

Effect of Rye Versus Winter Annual Weeds on Summer Annual Weed Growth and Soybean Yield. M. L. Bernards*, B. S. Heaton; Western Illinois University, Macomb, IL (7)

†Impact of -resistant Volunteer Corn Density, Control Timing, and Late Season Emergence on Soybean Yield. P. S. Chahal*1, M. L. Bernards2, G. R. Kruger3, H. Blanco-Canqui1, A. J. Jhala4; 1University of Nebraska- Lincoln, Lincoln, NE, 2Western Illinois University, Macomb, IL, 3University of Nebraska-Lincoln, North Platte, NE, 4University of Florida, Lake Alfred, FL (8)

Clearfield® Rice Genotypes Tolerance to Aerial Application of Imidazolinone as Affected by Plant Density. E. R. Camargo*, A. T. Martini, L. A. Avila, L.

18 19 F. Martini, A. Pivetta, F. Schreiber; Federal University of Pelotas (UFPel), Pelotas, Brazil (9)

†Influence of Preharvest Herbicides on Black Bean Desiccation, Yield, and Canning Quality. A. M. Goffnett*1, C. Sprague1, K. A. Cichy2; 1Michigan State University, East Lansing, MI, 2USDA-ARS, East Lansing, MI (10)

†Evaluation of PRE Herbicide and Seed Treatment on Thrips Infestation and Cotton Growth, Development, and Yield. J. Copeland*1, D. M. Dodds1, A. Catchot1, D. Reynolds1, J. Gore2, D. Wilson3, D. Denton1, C. A. Samples4; 1Mississippi State University, Mississippi State, MS, 2Mississippi State University, Stoneville, MS, 3Monsanto, St. Louis, MO, 4Mississippi State University, Starkville, MS (11)

†Comparison of Residual Herbicide Systems for Palmer Amaranth Management in West Texas. R. M. Merchant*1, P. A. Dotray2, J. Keeling3, M. R. Manuchehri4; 1University of Georgia, Tifton, GA, 2Texas Tech University, Texas A&M AgriLife Research and Extension Service, Lubbock, TX, 3Texas A&M AgriLife Extension Service, Lubbock, TX, 4Washington State University, Pullman, WA (12)

Efficacy of Fluridone-Based Herbicide Programs in Cotton and Peanut. M. W. Marshall*; Clemson University, Blackville, SC (13)

Herbicide Programs in Oklahoma Soybean. T. A. Baughman*1, R. Peterson2; 1Oklahoma State University, Lone Grove, OK, 2Oklahoma State University, Ardmore, OK (14)

†Evaluation of Glyphosate-Resistant Palmer amaranth control in HPPD-tolerant Soybean Systems. B. W. Schrage*1, W. J. Everman1, M. W. Marshall2; 1NCSU, Raleigh, NC, 2Clemson University, Blackville, SC (15)

†Modeling the Evolution of Shattercane Resistance to ALS-Inhibiting Herbicides in an ALS-Tolerant Sorghum Cropping System. R. Werle*, B. Tenhumberg, J. Lindquist; University of Nebraska-Lincoln, Lincoln, NE (16)

Weed Control in Soybean with Imazethapyr Applied Alone or in Tank-Mix with plus -P. N. Soltani*, K. D. Walsh, C. Shropshire, P. H. Sikkema; University of Guelph, Ridgetown, ON (17)

20 21 †Tank-Mixing Growth Regulator Herbicides with for Control of Glyphosate-Resistant Giant Ragweed in Corn. Z. A. Ganie*1, L. Sandell2, A. J. Jhala3; 1University of Nebraska-Lincoln, Lincoln, NE, 2Valent Corporation, Lincoln, NE, 3University of Florida, Lake Alfred, FL (18)

Responses of Glyphosate-Resistant and Conventional Canola (Brassica napus L.) to Glyphosate and AMPA Treatment. E. Alves Correa*1, S. O. Duke2, F. E. Dayan3, A. Rimando2; 1UNESP - Campus de Registro, Registro, Brazil, 2USDA, ARS, Oxford, MS, 3USDA-ARS, University, MS (19)

Peanut Response to Glyphosate + Drift at Different Growth Stages. P. A. Dotray*1, W. Grichar2, T. A. Baughman3, M. R. Manuchehri4, R. M. Merchant5, T. Morris2; 1Texas Tech University, Texas A&M AgriLife Research and Extension Service, Lubbock, TX, 2Texas A&M AgriLife Research, Lubbock, TX, 3Oklahoma State University, Lone Grove, OK, 4Texas Tech University, Lubbock, TX, 5University of Georgia, Tifton, GA (20)

Oilseed Cuphea Tolerance to Bicyclopyrone and . F. Forcella*; USDA, Morris, MN (21)

†Impact of Growth Regulator Rate and Application Timing on Sorghum Growth and Yield. T. E. Besancon*, W. J. Vincent, W. J. Everman; NCSU, Raleigh, NC (22)

†Sequential Applications for Rescue Control of Glyphosate Resistant Palmer Amaranth. D. Denton*1, D. M. Dodds1, D. Reynolds1, A. Mills2, J. Copeland1, C. A. Samples3; 1Mississippi State University, Mississippi State, MS, 2Monsanto, Collierville, TN, 3Mississippi State University, Starkville, MS (23)

Putative Genes Involved in the Non-target-site-based Herbicide Resistance in Echinochloa Crus-galli. G. Dalazen1, A. J. Fischer2, A. Merotto Junior*1; 1Federal University of Rio Grande do Sul - UFRGS, Porto Alegre, RS, Brazil, 2University of California, Davis, Davis, CA (24)

Evaluation of Inzen Grain Sorghum in Louisiana. D. Stephenson*, R. Landry, B. Woolam; LSU AgCenter, Alexandria, LA (25)

20 21 Biologically Effective Rate of Applied Pre-emergence in Soybean. N. Soltani*1, K. D. Walsh1, R. E. Nurse2, D. C. Hooker1, P. H. Sikkema1; 1University of Guelph, Ridgetown, ON, 2Agriculture and Agri-Food Canada, Harrow, ON (26)

Extent and Impact of Synthetic Resistant Weeds. I. M. Heap*; WeedSmart, Corvallis, OR (27)

Control of Fringed Redmaids (Calandriaia ciliata) in Winter Wheat. B. Woolam*1, D. Stephenson1, R. Landry1, A. Meszaros2, G. Coburn2; 1LSU AgCenter, Alexandria, LA, 2Pest Management Enterprises, LLC, Cheneyville, LA (28)

Addressing the Challenge of Glyphosate-resistant Conyza species Across the Americas. M. A. Peterson*1, D. M. Simpson2, R. Frene3, F. Lucio4; 1Dow AgroSciences, West Lafayette, IN, 2Dow AgroSciences, Indianapolis, IN, 3Dow AgroSciences, Buenos Aires, Argentina, 4Dow AgroSciences, Sao Paulo, Brazil (29)

†Glufosinate- and glyphosate- resistant Italian ryegrass (Lolium multiflorum) in California Orchards and Vineyards. E. Karn*, M. Jasieniuk; University of California-Davis, Davis, CA (30)

Employing Leaf Multispectral Reflectance Data and Random Forest Method to Differentiate between Soybean and Three Broadleaf Weed Species. R. S. Fletcher*, K. N. Reddy, S. J. Thomson; USDA, Stoneville, MS (31)

Section 2. Horticultural Crops

*PRESENTER † STUDENT POSTER CONTEST

†Processing Tomato (Solanum lycopersicum) Variety Tolerance to Thifensulfuron-methyl. M. Mohseni- Moghadam, K. J. Linder*, R. J. Edwards, D. Doohan; Ohio State University, Wooster, OH (32)

Response of Tomato (Solanum lycopersicum) and Soybean (Glycine max L.) to Sub-lethal Doses of 2,4-D or Dicamba, with/without Glyphosate. A. S. Leiva Soto*, M. Mohseni-Moghadam, L. Fleuridor, R. J. Edwards, D. Doohan; Ohio State University, Wooster, OH (33)

22 23 Weed Control, and Tolerance of Processing Tomato (Solanum lycopersicum) to . M. Mohseni- Moghadam*, D. Doohan; Ohio State University, Wooster, OH (34)

†Impact of Grafting on Tomato Weed Management. S. Chaudhari*, K. Jennings, D. W. Monks, F. Louws; NCSU, Raleigh, NC (35)

Impacts of Late-season Tall Morningglory Infestations on Chile Pepper Production. B. J. Schutte*; New Mexico State University, Las Cruces, NM (36)

Natural Weed Control Products for Organically Grown Vegetables. J. O’Sullivan*1, R. C. Van Acker2, R. D. Grohs1; 1University of Guelph, Simcoe, ON, 2University of Guelph, Guelph, ON (37)

†Effect of Green Manure and Cover Crops for Weed and Disease Management in Tulip. Y. Duan*1, G. A. Chastagner2, A. Debauw2, T. W. Miller3; 1Washington State University, Pullman, WA, 2Washington State University, Puyallup, WA, 3Washington State University, Mount Vernon, WA (38)

Soil Solarization, Microwaves, and Mustard Seed Meal Treatments for Weed Control in Annual Strawberry Production. J. Samtani1, J. Derr*1, C. Johnson2, M. Conway1, L. Darnell2, A. Rana1, R. Flanagan3; 1Virginia Tech, Virginia Beach, VA, 2Virginia Tech, Blackstone, VA, 3Virginia Cooperative Extension, Virginia Beach, VA (39)

Influence of Planting Date and Row Width on Quinoa and Grain Amaranth Yield in Ontario, Canada. R. E. Nurse*, E. R. Page; Agriculture and Agri-Food Canada, Harrow, ON (40)

A 3D View of Weeds in Horticultural Crops. B. Panneton1, A. Bizeau2, M. Simard*1; 1Agriculture and Agri-Food Canada, Saint-Jean-sur-Richelieu, QC, 2Université de Sherbrooke, Sherbrooke, QC (41)

22 23 Section 3. Turf and Ornamental Crops

*PRESENTER † STUDENT POSTER CONTEST

Common Crabgrass Pre-control in Mixing of Kentucky Bluegrass and Ryegrass. C. Li*, G. Xue; East China Weed Technology Institute of Nanjing, Nanjing, Peoples Republic (42)

Influence of Nitrogen Fertilization and Irrigation on White Clover Invasion in Kentucky Bluegrass Turf. D. W. Morishita*1, K. G. Frandsen1, T. Salaiz2; 1University of Idaho, Kimberly, ID, 2McCain Foods, Aberdeen, ID (43)

Common Polypogon Post-control in Seashore Paspalum. G. Xue*, C. Li; East China Weed Technology Institute of Nanjing, Nanjing, Peoples Republic (44)

Effect of Application on Seashore Paspalum after Coring Operations. Q. Ma*; Weed Technology Institute of East China, Nanjing, Peoples Republic (45)

†Turfgrass Species Response to Three HPPD- inhibiting Herbicides. J. R. Brewer*1, J. Willis2, S. Askew1; 1Virginia Tech, Blacksburg, VA, 2Monsanto, Florissant, MO (46)

†Pesticide Persistence and Behavior in Turfgrass Clippings. M. Jeffries*, T. Gannon, K. Ahmed; NCSU, Raleigh, NC (47)

†Does Annual Bluegrass Influence Golf Ball Deceleration and Trajectory on Putting Greens? S. S. Rana*, S. Askew, J. R. Brewer; Virginia Tech, Blacksburg, VA (48)

Topramezone Timing and Rate for Bermudagrass Suppression in Bentgrass Putting Surfaces. J. D. McCurdy*; Mississippi State University, Starkville, MS (49)

24 25 Section 4. Pasture, Rangeland, Forest, and Rights of Way

*PRESENTER

Utilizing for Roadside Weed Control in Georgia. P. McCullough*; University of Georgia, Griffin, GA (50)

Section 5. Wildland and Aquatic Invasive Plants

*PRESENTER

Kudzu Control Options: Initial Evaluation. J. Omielan*1, D. Gumm2, M. Barrett1; 1University of Kentucky, Lexington, KY, 2Kentucky Transportation Cabinet, Jackson, KY (51)

The Impacts of on Alliaria petiolata and Non-Target Forest Floor Plants in Central Kentucky. P. Podapati*; University of Kentucky, Lexington, KY (52)

Performance of Invasive Swallowwort Juveniles (Vincetoxicum spp.) Across a Habitat Gradient after 7 Years. L. R. Milbrath1, A. DiTommaso*2, J. Biazzo1, S. H. Morris2; 1USDA-ARS, Ithaca, NY, 2Cornell University, Ithaca, NY (53)

Section 6. Regulatory Aspects

No Submissions in This Section

Section 7. Education and Extension

*PRESENTER † STUDENT POSTER CONTEST

Enlist 360 Education Series: Education, Training and Outreach on the Enlist Weed Control System. D. E. Hillger*1, A. Asbury2, R. Keller3, J. Laffey4, R. Lassiter5, J. Siebert6, J. Wiltrout7; 1Dow AgroSciences, Noblesville, IN, 2Dow AgroSciences, Dahinda, IL, 3Dow AgroSciences, Rochester, MN, 4Dow AgroSciences, Maryville, MO, 5Dow AgroSciences, Raleigh, NC, 6Dow AgroSciences, Greenville, MS, 7Dow AgroSciences, Indianapolis, IN (54)

24 25 Herbicide Injury Symptoms on Horticultural Crops – An In-service Training for NC Cooperative Extension and Department of Agriculture Staff. J. C. Neal*1, K. Jennings1, B. Lassiter2, W. Mitchem3; 1NCSU, Raleigh, NC, 2NC Dept of Agriculture and Consumer Services, Raleigh, NC, 3NCSU, Mills River, NC (55) iBook for Weed Identification. B. A. Ackley*; Ohio State University, Columbus, OH (56)

Geodatabase \”WeedMap\” for Recording Data on Weed Distribution. K. Hamouzova*, J. Soukup, M. Kolarova, P. Hamouz; Czech University of Life Sciences Prague, Prague, Czech Republic (57)

An Online Resource for Herbicide Target Gene Sequences. D. A. Giacomini*1, I. M. Heap2, D. Sammons3; 1Colorado State University, Ft. Collins, CO, 2WeedSmart, Corvallis, OR, 3Monsanto, St. Louis, MO (58)

†Distribution and Herbicide Resistance Characteristics of Amaranthus spp. in Ohio. S. N. Konkle*, M. M. Loux; Ohio State University, Columbus, OH (59)

Stopping the Production of Viable Weed Seeds - It May Occur Sooner Than You Think. M. J. VanGessel*1, E. C. Hill2, K. A. Renner2, E. R. Gallandt3, C. Mohler4; 1University of Delaware, Georgetown, DE, 2Michigan State University, East Lansing, MI, 3University of Maine, Orono, ME, 4Cornell University, Ithaca, NY (60)

Section 8. Formulation, Adjuvant and Application Technology

*PRESENTER † STUDENT POSTER CONTEST

Description of New 2,4-D and Dicamba Acid Formulations. J. T. Daniel*1, S. K. Parrish2, P. Westra3; 1Agricultural Consultant, Keenesburg, CO, 2AgraSyst Inc, Spokane, WA, 3Colorado State University, Ft. Collins, CO (61)

†Spray Droplet Size Evaluation of BASF Engenia™ Herbicide and Existing Dicamba Formulation, Alone and in Tank Mix Combinations. A. Clark*1,

26 27 L. Magidow1, L. Bozeman2; 1WinField / Land O Lakes, River Falls, WI, 2BASF, Research Triangle Park, NC (62)

†Influence of Carrier Water pH, Foliar Fertilizer, and Plant Height on Horseweed Control with . P. Devkota*, W. Johnson; Purdue University, West Lafayette, IN (63)

†Effects of Water Quality and Conditioning Agents on Glyphosate Performance. M. R. Manuchehri*1, P. A. Dotray2, J. Keeling3, T. Morris4; 1Texas Tech University, Lubbock, TX, 2Texas Tech University, Texas A&M AgriLife Research and Extension Service, Lubbock, TX, 3Texas A&M AgriLife Extension Service, Lubbock, TX, 4Texas A&M AgriLife Research, Lubbock, TX (64)

†Impact of Depostion Aids on Herbicide Penetration into Crop Canopies. C. A. Samples*1, D. M. Dodds2, A. Catchot2, G. R. Kruger3, J. Copeland2, D. Denton2; 1Mississippi State University, Starkville, MS, 2Mississippi State University, Mississippi State, MS, 3University of Nebraska-Lincoln, North Platte, NE (65)

Chemical Control of Wild Buckwheat (Polygonum convolvulus L) and Field Bindweed(Convolvulus arvensis L) on Wheat in Mexico. E. Lopez*; Crop Protection R&D, Guadalajara, Mexico (66)

Diclosunam to Control Sedges and Other Weeds on Sugarcane in Guatemala. E. Castaneda*1, E. Lopez2; 1Crop Protection R&D, Guatemala, Guatemala, 2Crop Protection R&D, Guadalajara, Mexico (67)

Section 9. Weed Biology and Ecology

*PRESENTER † STUDENT POSTER CONTEST

Seed Desiccation Tolerance and Viability of Chenopodium album as Affected by Cutting Method and Timing. F. Kordbacheh1, C. Mohler2, A. DiTommaso*2, H. R. Mashhadi3, H. Alizadeh3; 1University of Tehran, Tehran, Iran, 2Cornell University, Ithaca, NY, 3University of Tehran, Karaj, Iran (68)

Post-mortem Seed Development: Does Termination Timing or Method Make a Difference? E. C. Hill*1, K. A. Renner1, M. J. VanGessel2, B. Scott3; 1Michigan State

26 27 University, East Lansing, MI, 2University of Delaware, Georgetown, DE, 3University of Delaware, Newark, DE (69)

Influence of Palmer Amaranth Density and Emergence Date on Seed Production in Wide Row and Drill-Seeded Soybean. N. E. Korres*, J. K. Norsworthy; University of Arkansas, Fayetteville, AR (70)

Effects of Pesticide Seed Treatments on Weed Seed Banks in Corn and Soybean. M. Morris*, L. W. Atwood, R. G. Smith; University of New Hampshire, Durham, NH (71)

Glyphosate Exposure Alters Flowering and Seed Production in Sumatran Fleabane (Conyza sumatrensis). G. L. Gomes*1, C. A. Carbonari2, E. D. Velini2, B. Marchesi2, G. C. Macedo2, A. K. Matos2; 1Faculdade de Ciências Agronômicas / UNESP, Botucatu, Brazil, 2Faculdade de Ciências Agronômicas / UNESP, Botucatu, Brazil (72)

Altering Tuber Production of Purple Nutsedge (Cyperus rotundus) with Herbicides. T. M. Webster*1, T. L. Grey2; 1USDA-ARS, Tifton, GA, 2University of Georgia, Tifton, GA (73)

The Influence of Climate on the Distribution of Mayweed Chamomile and Italian Ryegrass in the Pacific Northwest. N. Lawrence1, L. Bernacchi2, J. Wulfhorst2, I. C. Burke*1; 1Washington State University, Pullman, WA, 2University of Idaho, Moscow, ID (74)

Winter Annual Weed Communities As A Result Of Fall Or Spring Weed Control. M. J. VanGessel*1, Z. Zhang2, T. W. Ilvento2, B. Scott2, Q. R. Johnson1; 1University of Delaware, Georgetown, DE, 2University of Delaware, Newark, DE (75)

Growing Season Phenology of Four Broadleaf Species in South Dakota. S. A. Clay*, M. Erazo-Barradas, G. Reicks; SDSU, Brookings, SD (76)

Giant Ragweed(Ambrosia trifida L.) Fecundity and Reproductive Allometry in Maize (Zea mays L.) and Soybean (Glycine max (L.) Merr.). E. R. Page*, R. E. Nurse; Agriculture and Agri-Food Canada, Harrow, ON (77)

28 29 Effect of Temperature and Light Intensity on the Efficacy of Some Postemergence Herbicides on Hairy Fleabane (Conyza bonariensis). M. Dennis, J. Bushoven, A. Shrestha*; California State University, Fresno, CA (78)

†Ecological Fitnesses of Multiple Herbicide- resistance Traits in the Absence of Herbicide Selection Determined from a Multi-generation Greenhouse Study of Waterhemp (Amaranthus tuberculatus) . C. Wu*, P. Tranel, A. Davis; University of Illinois, Urbana, IL (79)

Selection Pressure Effects on Introgressed Herbicide and Disease Resistance Allele Proportion, Gene Flow and Yield Components in Jointed Goatgrass (Aegilops cylindrica). B. A. Martins*1, C. A. Mallory- Smith2; 1EMBRAPA, Sete Lagoas, Brazil, 2Oregon State University, Corvallis, OR (80)

†The Effect of Cover Crops on Horseweed Growth and Development. A. M. Christenson*, A. Dille, D. Peterson, K. Roozeboom; Kansas State University, Manhattan, KS (81)

Perspectives on Corn Yield Losses Due to Weeds in North America. A. Dille*1, P. H. Sikkema2, V. M. Davis3, I. C. Burke4, W. J. Everman5; 1Kansas State University, Manhattan, KS, 2University of Guelph, Ridgetown, ON, 3University of Wisconsin, Madison, WI, 4Washington State University, Pullman, WA, 5NCSU, Raleigh, NC (82)

†Targeted Metabolomics - A Robust Analytical Approach For Augmenting Mechanistic Insights Into Herbicide Resistance In Weeds. A. S. Maroli*1, V. K. Nandula2, N. Tharayil1; 1Clemson University, Clemson, SC, 2USDA, Stoneville, MS (83)

†Using RNA-Seq to Identify Candidate Resistance Genes in Echinochloa in Mississippi. A. A. Wright*1, K. Showmaker2, V. K. Nandula3, D. Peterson2, J. Bond1, D. Shaw2; 1Mississippi State University, Stoneville, MS, 2Mississippi State University, Mississippi State, MS, 3USDA, Stoneville, MS (84)

†Screening for Resistance to 20X Glyphosate in Biotypes of Conyza canadensis from Soybean Fields

28 29 and Non-agricultural Habitats in Ohio and Iowa. Z. T. Beres*1, E. E. Ernst1, A. A. Snow1, J. T. Parrish1, M. D. Owen2, B. A. Ackley1, M. M. Loux1; 1Ohio State University, Columbus, OH, 2Iowa State University, Ames, IA (85)

†Identifying Gender-Specific DNA Markers in Waterhemp (Amaranthus tuberculatus). A. Sadeque*, P. Brown, P. Tranel; University of Illinois, Urbana, IL (86)

†Characterization of Multiple-Resistant Palmer amaranth in Michigan . J. R. Kohrt*1, C. Sprague2; 1Michigan State University, Okemos, MI, 2Michigan State University, East Lansing, MI (87)

†Elucidating the Germination Mechanism of Parasitic Orobanchaceae Through Transcriptomics. H. Larose*1, D. Plakhine2, M. Yahyaa2, H. Eizenberg2, D. Joel2, Y. Tadmor2, J. Westwood1; 1Virginia Tech, Blacksburg, VA, 2Newe Yaar Research Center, ARO, Israel, Ramat Yishay, Israel (88)

†The Currency of a Thief: Metabolomic Analysis of Heterotrophic Nitrogen in Parasitic Phelipanche aegyptiaca . K. Clermont*, E. Collakova, J. Westwood; Virginia Tech, Blacksburg, VA (89)

Optimizing Cultured Phelipanche Regeneration for Research on Parasitic Weeds. R. L. Warnock*, H. Gruszewski, J. Westwood; Virginia Tech, Blacksburg, VA (90)

†Gene Flow from Glyphosate-Resistant Common Waterhemp under Field Condition. D. Sarangi*1, A. J. Jhala2; 1University of Nebraska, Lincoln, NE, 2University of Florida, Lake Alfred, FL (91)

Weed Emergence and Population Dynamics in Alternative Irrigation Systems in California Rice. W. B. Brim-DeForest, B. A. Linquist, A. J. Fischer*; University of California, Davis, Davis, CA (92)

†Plant Size and ALS-Inhibiting Herbicide Dose Influence the Control of ALS-Resistant Shattercane Populations. R. Werle*1, R. L. Martins2, L. Sandell3, J. Lindquist1; 1University of Nebraska-Lincoln, Lincoln,

30 31 NE, 2São Paulo State University, Botucatu, Brazil, 3Valent Corporation, Lincoln, NE (93)

Section 10. Biocontrol of Weeds

*PRESENTER † STUDENT POSTER CONTEST

†Postemergence Control of Broadleaf Weeds With the Bioherbicide Thaxtomin A (MBI-005). J. C. Wolfe*, J. C. Neal, C. D. Harlow; NCSU, Raleigh, NC (94)

†Meta-analysis of Seed Predation by Vertebrates and Invertebrates in Seed Removal Assays. C. K. Blubaugh*, I. Kaplan; Purdue University, West Lafayette, IN (95)

Section 11. Physiology

*PRESENTER † STUDENT POSTER CONTEST

†Inhibition of Broomrape Development Under Low Light Intensity. A. Cochavi*1, J. E. Ephrath1, S. Rachmilevich1, C. Miao1, H. Eizenberg2; 1French Associates Institute for Agriculture and Biotechnology of Drylands, Sede Boqer, Israel, 2Newe Yaar Research Center, ARO, Israel, Ramat Yishay, Israel (96)

Genotypic Variation in Phenological Parameters of Yellow Nutsedge Populations in Response to Photoperiod. P. Tehranchian*, J. K. Norsworthy; University of Arkansas, Fayetteville, AR (97)

Did ALS Inhibitor Resistance in Amaranthus spinosus come from A. palmeri? W. Molin*1, A. A. Wright2, V. K. Nandula3, J. Bond2; 1USDA-ARS, Stoneville, MS, 2Mississippi State University, Stoneville, MS, 3USDA, Stoneville, MS (98)

Multiple Alleles for ALS Inhibitor Resistance in Amaranthus palmeri in Mississippi. W. Molin*1, A. A. Wright2, V. K. Nandula3; 1USDA-ARS, Stoneville, MS, 2Mississippi State University, Stoneville, MS, 3USDA, Stoneville, MS (99)

†Non Target Site Resistance to ACCase Inhibitors in Grass Weeds - A New Perspective. M. Matzrafi*, B. Rubin, Z. Peleg; Hebrew University of Jerusalem, Rehovot, Israel (100)

30 31 ACCase Inhibitor Resistance in Leptochloa fusca spp. fascicularis (bearded sprangletop) in California Rice. W. B. Brim-DeForest, R. Alarcon-Reverte, A. J. Fischer*; University of California, Davis, Davis, CA (101)

Evidence for Fomesafen-Induced Stimulatory Effects on Germination of Amaranthus tuberculatus at Sub- Lethal Doses. R. Wuerffel*, B. G. Young; Southern Illinois University, Carbondale, IL (102)

†Sensitivity of Different Corn Cultivars to Foramsulfuron. A. Paporisch, B. Rubin*; Hebrew University of Jerusalem, Rehovot, Israel (103)

Confirmation of Glyphosate-Resistant Kochia in Idaho and Oregon. P. Jha*1, D. W. Morishita2, J. Felix3, V. Kumar1, M. Flenniken4; 1Montana State University, Huntley, MT, 2University of Idaho, Kimberly, ID, 3Oregon State University, Ontario, OR, 4Montana State University, Bozeman, MT (104)

Glyphosate Resistance in Common Ragweed from Mississippi. V. K. Nandula*1, M. Crampton2, V. Kalavacharla2, J. Bond3, T. Eubank4; 1USDA, Stoneville, MS, 2Delaware State University, Dover, DE, 3Mississippi State University, Stoneville, MS, 4Mycogen Seeds, Greenville, MS (105)

Mechanism of Resistance to Glyphosate in Palmer amaranth (Amaranthus palmeri) Populations from New Mexico. M. Mohseni-Moghadam*1, J. Ashigh2, J. Schroeder2; 1Ohio State University, Wooster, OH, 2New Mexico State University, Las Cruces, NM (106)

Multifactorial Herbicide Resistance in Echinochloa phyllopogon of California Rice Fields. A. J. Fischer*, R. Alarcon-Reverte; University of California, Davis, Davis, CA (107)

Target-site Resistance to in Cyperus difformis L.: Implications for Management in Rice Fields of California. R. M. Pedroso, R. Alarcon-Reverte, A. J. Fischer*; University of California, Davis, Davis, CA (108)

32 33 Rice Seedling Gene Expression in Response to Cold Stress and Herbicides. L. A. Avila*1, C. E. Schaedler2, L. F. Martini1, J. A. Noldin3, P. D. Zimmer4, M. Zimmer4, D. Agostinetto4, C. T. Borges4; 1Federal University of Pelotas (UFPel), Pelotas, Brazil, 2Universidade Federal do Pampa, Itaqui, Brazil, 3Epagri, Itajaí, Brazil, 4Universidade Federal de Pelotas, Pelotas, Brazil (109)

†Does EPSPS Gene Amplification Confer Fitness Cost in Glyphosate-Resistant Kochia? V. Kumar*1, P. Jha1, M. Flenniken2, S. Misra3; 1Montana State University, Huntley, MT, 2Montana State University, Bozeman, MT, 3University of Georgia, Athens, GA (110)

Effect of Planting Time and Bispyribac-sodium on Gene Expression of Rice Seedlings. L. F. Martini1, J. A. Noldin*2, L. A. Avila1, C. E. Schaedler3, C. T. Borges4, P. D. Zimmer4, D. Agostinetto4; 1Federal University of Pelotas (UFPel), Pelotas, Brazil, 2Epagri, Itajaí, Brazil, 3Universidade Federal do Pampa, Itaqui, Brazil, 4Universidade Federal de Pelotas, Pelotas, Brazil (111)

Physiological Effects of Glufosinate Ammonium on Conventional, Glufosinate-resistant and Widestrike® Cotton. C. A. Carbonari*1, D. O. Latorre1, A. L. Cavenaghi2, E. D. Velini1, G. L. Gomes3; 1Faculdade de Ciências Agronômicas / UNESP, Botucatu, Brazil, 2UNIVAG, Cuiabá, Brazil, 3Faculdade de Ciências Agronômicas / UNESP, Botucatu, Brazil (112)

Development of PCR Based Tests to Identify Weedy Amaranthus Species. A. A. Wright1, W. Molin*2, V. K. Nandula3; 1Mississippi State University, Stoneville, MS, 2USDA-ARS, Stoneville, MS, 3USDA, Stoneville, MS (113)

Statewide Postemergence Screening for PPO Inhibitor Resistance in Pigweeds in Mississippi. V. K. Nandula*1, A. A. Wright2, W. Molin3; 1USDA, Stoneville, MS, 2Mississippi State University, Stoneville, MS, 3USDA- ARS, Stoneville, MS (114)

†Conventional Soybean Grafted to Glyphosate- resistant Rootstock Express Herbicide Tolerance at the Whole-plant Level. Y. Chen*1, J. Blakeslee1, D. Doohan2; 1The Ohio State University, Wooster, OH, 2Ohio State University, Wooster, OH (115)

32 33 †Methiozolin and Tyrosine Aminotransferases (TATs). C. Brabham, J. Gollihue*, S. Debolt, M. Barrett; University of Kentucky, Lexington, KY (116)

†Effect of Drought on Host Parasite Relationship in Phelipanche aegyptiaca: Physiological Study. A. Cochavi*1, J. E. Ephrath2, S. Rachmilevich2, H. Eizenberg3; 1French Associates Institute for Agriculture and Biotechnology of Drylands, Sede Boqer, Israel, 2French Associates Institute for Agriculture and Biotechnology of Drylands, Sede Boqer, Israel, 3Newe Yaar Research Center, ARO, Israel, Ramat Yishay, Israel (117)

Section 12. Soil and Environmental Aspects

*PRESENTER † STUDENT POSTER CONTEST

†Rates of Speciation Transformation Following Monosodium Methyl Arsenate Application to Soils. L. Ou*, D. Mahoney, T. Gannon, D. L. Hesterberg, M. L. Polizzottoo; NCSU, Raleigh, NC (118)

†Nitrous Oxide Output Based on Weed Management Systems. A. M. Knight*1, W. J. Everman1, S. C. Reberg- Horton2, S. Hu2, D. L. Jordan1, N. Creamer2; 1NCSU, Raleigh, NC, 2North Carolina State University, Raleigh, NC (119)

The Environmental Impact Quotient (EIQ) Should Not Be Used to Compare Herbicides. A. R. Kniss*, C. M. Coburn; University of Wyoming, Laramie, WY (120)

Section 13. Integrated Weed Management

*PRESENTER † STUDENT POSTER CONTEST

Competitive and Weed Suppressive Effects of Cover Crops in Mixture and Monoculture. A. A. Holmes, S. E. Wortman*; University of Illinois at Urbana - Champaign, Urbana, IL (121)

Effect of Cover Crops on the Relative Cover and Weed Biomass. H. A. Acciaresi*1, G. Picapietra2; 1Instituto Nacional Tecnologia Agropecuaria, Pergamino, Argentina, 2UNNOBA-INTA, Pergamino, Argentina (122)

34 35 Differential Response to Glufosinate and Oxifluorfen in Glyphosate-Resistant Grass Weed Species. P. T. Fernández-Moreno1, R. Alcántara de la Cruz1, M. M. Trezzi2, J. Menéndez Calle3, R. A. De Prado*1; 1Universidad de Córdoba, Córdoba, Spain, 2Universidade Tecnologica Federal Do Parana, Pato Branco, Brazil, 3Universidad de Huelva, Huelva, Spain (123)

Glyphosate Resistance Variability in Chloris spp Collected in Cuba. R. Alcántara de la Cruz*1, P. T. Fernández-Moreno1, M. M. Trezzi2, J. Menéndez Calle3, R. A. De Prado1; 1Universidad de Córdoba, Córdoba, Spain, 2Universidade Tecnologica Federal Do Parana, Pato Branco, Brazil, 3Universidad de Huelva, Huelva, Spain (124)

Response to Glyphosate in Borreria latifolia Populations from Brazil. F. Diesel1, M. Gallon1, R. Alcántara de la Cruz2, P. T. Fernández-Moreno2, M. M. Trezzi*1, R. A. De Prado2; 1Universidade Tecnologica Federal Do Parana, Pato Branco, Brazil, 2Universidad de Córdoba, Córdoba, Spain (125)

Quick Tests: Glyphosate-Resistant Kochia and Pinoxaden-Resistant Grass Weeds. J. Pratchler*1, S. W. Shirriff2, H. J. Beckie2; 1University of Saskatchewan, Saskatoon, SK, 2Agriculture and Agri-Food Canada, Saskatoon, SK (126)

Palmer Amaranth in California: Planning Ahead for Glyphosate Resistance Management. S. I. Rios1, S. D. Wright2, A. Ferry-Abee2, G. Banuelos2, E. Padilla2, S. Parry2, A. Shrestha*3; 1University of California Cooperative Extension-Riverside County, Fresno, CA, 2University of California Cooperative Extension-Tulare/ Kings Counties, Tulare, CA, 3California State University, Fresno, CA (127)

Cross Resistance to ACCase Herbicides in Eleusine indica Biotypes Collected in Brazil. P. T. Fernández- Moreno1, R. Alcántara de la Cruz1, M. M. Trezzi2, J. Menéndez Calle3, R. A. De Prado*1; 1Universidad de Córdoba, Córdoba, Spain, 2Universidade Tecnologica Federal Do Parana, Pato Branco, Brazil, 3Universidad de Huelva, Huelva, Spain (128)

34 35 Performance of Weed Management Systems Without in North American Processing Sweet Corn. Z. F. Arslan*1, R. Becker2, V. A. Fritz3, R. E. Peachey4, T. L. Rabaey5, M. M. Williams II6; 1University of Illinois, Urbana, IL, 2University of Minnesota, St. Paul, MN, 3University of Minnesota, Waseca, MN, 4Oregon State University, Corvallis, OR, 5University of Minnesota, LeSueur, MN, 6USDA-ARS, Urbana, IL (129)

†Atrazine and Pendimethalin Weed Control is Reduced in Soils Amended with Biochar. N. Soni*1, R. G. Leon1, J. E. Erickson2, J. A. Ferrell2, M. L. Silveira3; 1University of Florida, Jay, FL, 2University of Florida, Gainesville, FL, 3University of Florida, Ona, FL (130)

†Influence of Tillage Methods on Management of Amaranthus Species in Soybean. J. Farmer*1, V. M. Davis2, W. Johnson3, M. M. Loux4, J. K. Norsworthy5, L. E. Steckel6, K. Bradley1; 1University of Missouri, Columbia, MO, 2University of Wisconsin, Madison, WI, 3Purdue University, West Lafayette, IN, 4Ohio State University, Columbus, OH, 5University of Arkansas, Fayetteville, AR, 6University of Tennessee, Jackson, TN (131)

Role of Bacillus and Pseudomonas spp on the Management of Phalaris minor. S. Singh*, M. Phour, S. S. Sindhu; CCS Haryana Agricultural University, Hisar, India (132)

†Carryover of Common Corn and Soybean Herbicides to Various Cover Crop Species in Missouri. C. Cornelius*, J. Farmer, M. D. Bish, A. Long, M. Biggs, K. Bradley; University of Missouri, Columbia, MO (133)

Application Timing Effect on Sicklepod and Morningglory Control and Seed Production of Surviving Plants after Applications with Glyphosate, 2,4-D, and Dicamba Combinations. R. G. Leon*1, J. A. Ferrell2; 1University of Florida, Jay, FL, 2University of Florida, Gainesville, FL (134)

Drip Herbigation of Imazapic Based on Degree Days Model for Egyptian Broomrape (Phelipanche aegyptiaca) Control in Processing Tomato in Israel. E. Avivi*1, G. Achdari2, Y. Kleifeld3, H. Eizenberg4; 1Ein Harod farm R&D, Kibutz Ein Harod, Israel, 2Department of Weed Research and Phytopathology, Ramat Yishay,

36 37 Israel, 3Netafim Ltd R&D, Tel Aviv, Israel,4 Newe Yaar Research Center, ARO, Israel, Ramat Yishay, Israel (135)

TUESDAY MORNING FEBRUARY 10 Integration of ‘Omics’ Approaches in Weed Science Research

LOCATION: Bluegrass Ballroom 1 TIME: 10:15 AM - 12:00 PM CHAIR: Nishanth Tharayil Clemson University Clemson, SC

*SPEAKER

10:15 Introduction

10:30 Constraints and Opportunities for Genomics in Weed Science. P. Tranel*; University of Illinois, Urbana, IL (136)

11:00 Translating Population Genomics Models to Inform Weedy Species Management. A. L. Lawton- Rauh*; Clemson University, Clemson, SC (137)

11:30 Genes Regulating Parasitism in Cuscuta. N. Sinha*; University of California, Davis, Davis, CA (138)

TUESDAY MORNING FEBRUARY 10 Section 1. Agronomic Crops

LOCATION: Thoroughbred 1 TIME: 10:00 AM - 12:00 PM CHAIR: Jonathan Huff Dow AgroSciences Herrin, IL

*SPEAKER

10:00 Residual Control of Waterhemp with Dicamba. S. T. Logan*1, S. M. Allen2, T. D. White3, J. L. Matthews4, J.M. Young5, B. G. Young5; 1Monsanto Company, Pinckneyville, IL, 2Monsanto Company, Bonnie, IL,3 Monsanto Company, St. Louis, MO,4 Southern Illinois University, Carbondale, IL, 5Purdue University, West Lafayette, IN (139)

36 37 10:15 Utility of Valent Herbicide Portfolio in a Dicamba or 2,4-D Traited Soybean System. D. Refsell*1, J. Pawlak2; 1Valent USA, Lathrop, MO, 2Valent USA, Lansing, MI (140)

10:30 Remotely Sensed Spectral Characterization of Soybean Response to Simulated Dicamba Drift. K. N. Reddy*1, Y. Huang2; 1USDA, Stoneville, MS, 2USDA- ARS, Stoneville, MS (141)

10:45 Management of Glyphosate-Resistant Palmer Amaranth in Cotton with Dicamba. M. D. Inman*, D. L. Jordan, A. C. York, W. J. Everman, K. Jennings, D. W. Monks; NCSU, Raleigh, NC (142)

11:00 Application Stewardship of EngeniaTM Herbicide in Dicamba Tolerant Crops. D. Westberg*, C. Feng, C. Brommer, W. E. Thomas; BASF Corporation, Research Triangle Park, NC (143)

11:15 Weed Management Stewardship of EngeniaTM Herbicide in Dicamba Tolerant Crops. C. Brommer*1, J. Frihauf2, S. Bowe1; 1BASF Corporation, Research Triangle Park, NC, 2BASF Corporation, Raleigh, NC (144)

11:30 Enlist™ Technology in Texas High Plains Cotton. M. R. Manuchehri*1, P. A. Dotray2, J. Keeling3, T. Morris4, M. L. Lovelace5; 1Texas Tech University, Lubbock, TX, 2Texas Tech University, Texas A&M AgriLife Research and Extension Service, Lubbock, TX, 3Texas A&M AgriLife Extension Service, Lubbock, TX, 4Texas A&M AgriLife Research, Lubbock, TX, 5Dow AgroSciences, Lubbock, TX (145)

11:45 Control of Glyphosate-resistant Giant Ragweed in Soybean Tolerant to 2,4-D, Glufosinate and Glyphosate. A. J. Jhala*1, K. Rosenbaum2; 1University of Florida, Lake Alfred, FL, 2Dow AgroSciences, Lincoln, NE (146)

38 39 TUESDAY MORNING FEBRUARY 10 Section 4. Pasture, Rangeland, Forest, and Rights of Way

LOCATION: Thoroughbred 2 TIME: 10:00 AM - 12:00 PM CHAIR: Joe Omielan University of Kentucky Lexington, KY

*SPEAKER

10:00 Are Multi-cultivar Forage Stands More Effective at Suppressing Weedy Species than Single Cultivar Stands? F. W. Pollnac*, R. G. Smith, N. Warren; University of New Hampshire, Durham, NH (147)

10:15 Translocation and Metabolism of 2,4-D in Sensitive and Tolerant Red Clover (Trifolium pratense) Lines. T. L. Burke*, M. Barrett; University of Kentucky, Lexington, KY (148)

10:30 Aminocyclopyrachlor Plus Metsulfuron Reduces Tall Fescue Seed Heads and Improves Forage Quality. T. D. Israel*, G. Rhodes, Jr., T. C. Mueller, G. E. Bates, J. C. Waller; University of Tennessee, Knoxville, TN (149)

10:45 Evaluation of Derigo (foramsulfuron + iodosulfuron + thiencarbazone) for Weed Control in Grassy Roadsides in Georgia. P. McCullough*; University of Georgia, Griffin, GA (150)

11:00 Japanese knotweed (Fallopia spp.) Congener Stand Reduction Following Mid-season Herbicide Treatments - Year One. A. Z. Skibo*1, M. J. VanGessel2, M. Yost3; 1SePRO Corporation, Fort Collins, CO, 2University of Delaware, Georgetown, DE, 3DNREC, Dover, DE (151)

11:15 Brownout Following Application of Mixtures with Saflufenacil in Forestry Site Preparation Activities. A. W. Ezell*1, A. B. Self2; 1Mississippi State University, Starkville, MS, 2Mississippi State University, Grenada, MS (152)

38 39 11:30 Herbicides for Hardwood Management- A Compilation of Research Studies. A. W. Ezell*; Mississippi State University, Starkville, MS (153)

11:45 Section Business Meeting

TUESDAY MORNING FEBRUARY 10 Section 8. Formulation, Adjuvant and Application Technology

LOCATION: Thoroughbred 3 TIME: 10:00 AM - 11:15 AM CHAIR: Susan Sun AkzoNobel Surface Chemistry Brewster, NY

*SPEAKER

10:00 Application Best Management Practices for Balancing Drift Mitigation and Weed Control with the Enlist Weed Control System. D. E. Hillger*1, A. Asbury2, P. Havens3, R. Keller4, J. Laffey5, R. Lassiter6, J. Schleier3, J. Siebert7; 1Dow AgroSciences, Noblesville, IN, 2Dow AgroSciences, Dahinda, IL, 3Dow AgroSciences, Indianapolis, IN, 4Dow AgroSciences, Rochester, MN, 5Dow AgroSciences, Maryville, MO, 6Dow AgroSciences, Raleigh, NC, 7Dow AgroSciences, Greenville, MS (154)

10:15 Exploring the Potential for Selectivity in Bermudagrass Using Microwave Radiations for Weed Control. A. Rana*, J. Derr; Virginia Tech, Virginia Beach, VA (155)

10:30 Influence of Carrier Water pH and Foliar Fertilizers on Weed Control with Postemergence Herbicides. P. Devkota*, W. Johnson; Purdue University, West Lafayette, IN (156)

10:45 Evaluation of Physical Drift and Vapor Drift of Several Dicamba and 2,4-D Formulations and the Impact of Volatility Reduction Adjuvants. S. K. Parrish*1, J. T. Daniel2, P. Westra3; 1AgraSyst Inc, Spokane, WA, 2Agricultural Consultant, Keenesburg, CO, 3Colorado State University, Ft. Collins, CO (157)

11:00 Section Business Meeting

40 41 TUESDAY MORNING FEBRUARY 10 Section 6. Regulatory Aspects

LOCATION: Thoroughbred 3 TIME: 11:15 AM - 12:15 PM CHAIR: Chris Dionigi National Invasive Species Council Washington, DC

*SPEAKER

11:15 Interdepartment Coordination of Invasive Plant Policy and Regulation. C. P. Dionigi*; National Invasive Species Council, Washington, DC (158)

11:30 APHIS Update on Not Allowed import Pending Pest Risk Analysis category: Rounds 2 and 3. A. V. Tasker*; USDA, APHIS, Plant Protection & Quarantine, Riverdale, MD (159)

11:45 The PPQ Weed Risk Assessment Model: Current Status and Use. A. L. Koop*1, L. Kohl1, L. Newton1, B. Caton1, L. Miller1, B. Randall-Schadel1, I. Baez1, S. Emerine2; 1USDA-APHIS, Raleigh, NC, 2NCSU, Raleigh, NC (160)

12:00 Section Business Meeting

TUESDAY AFTERNOON FEBRUARY 10 Graduate Student Luncheon

LOCATION: Thoroughbred 4 TIME: 12:00 PM - 1:30 PM

TUESDAY AFTERNOON FEBRUARY 10 Integration of ‘Omics’ Approaches in Weed Science Research

LOCATION: Bluegrass Ballroom 1 TIME: 1:30 PM - 4:30 PM CHAIR: Nishanth Tharayil Clemson University Clemson, SC

*SPEAKER

40 41 1:30 Transcriptomic Approaches to Investigate Dormancy in Underground Adventitious Buds of Perennial Weeds. M. E. Foley*, M. Dogramaci, D. Horvath, W. S. Chao, J. V. Anderson; USDA-ARS, Fargo, ND (161)

2:00 Transcriptomic Approaches to Study Herbicide Resistance in Weeds. T. A. Gaines*; Colorado State University, Ft. Collins, CO (162)

2:30 Using Omics Approaches to Study Non-target Glyphosate Resistance in Horseweed (Conyza canadensis). Y. Peng*1, Y. Sang1, R. Ye1, Q. Jia1, S. Allen1, D. Sammons2, N. Stewart1; 1University of Tennessee, Knoxville, TN, 2Monsanto, St. Louis, MO (163)

3:00 Break

3:15 Omics Approaches to Natural Products Research. S. O. Duke*; USDA, ARS, Oxford, MS (164)

3:45 Herbicide Resistance and Tolerance in Weeds: Insights from Metabolomics and Enzyme Analysis. N. Tharayil*, A. S. Maroli; Clemson University, Clemson, SC (165)

4:15 Panel Discussion

TUESDAY AFTERNOON FEBRUARY 10 Section 1. Agronomic Crops

LOCATION: Thoroughbred 1 TIME: 1:30 PM - 5:00 PM CHAIR: Jonathan Huff Dow AgroSciences Herrin, IL MODERATOR: Chase Samples Mississippi State Univ Mississippi State, MS

*SPEAKER 1:30 An Update on HPPD-resistance in AMAPA and AMATA Populations. C. L. Dunne*1, R. Jain1, V. K. Shivrain2, G. D. Vail2; 1Syngenta Crop Protection, Vero Beach, FL, 2Syngenta Crop Protection, Greensboro, NC (166)

42 43 1:45 Evaluation of Weed Control Programs Utilizing HPPD-Tolerant Soybeans. J. C. Holloway*1, D. E. Bruns2, T. H. Beckett3, B. R. Miller4, D. J. Porter5; 1Syngenta Crop Protection, Jackson, TN, 2Syngenta Crop Protection, LLC, Marysville, OH, 3Syngenta Crop Protection, Greensboro, NC, 4Syngenta Crop Protection, LLC, Minneapolis, MN, 5Syngenta Crop Protection, LLC, Greensboro, NC (167)

2:00 Palmer Amaranth Soil Seedbank Management: Integrating Harvest Weed Seed Control Strategies and other Fall Practices with Herbicides. J. K. Norsworthy*1, M. Walsh2, S. Powles2; 1University of Arkansas, Fayetteville, AR, 2University of Western Australia, Perth, Australia (168)

2:15 Interaction of Soil-Residual Herbicide Combinations and Rates on the Control of Waterhemp and Soybean Growth and Development. N. T. Harre*1, J. L. Matthews2, J. M. Young1, M. L. Bernards3, A. G. Hager4, B. G. Young2; 1Purdue University, West Lafayette, IN, 2Southern Illinois University, Carbondale, IL, 3Western Illinois University, Macomb, IL, 4University of Illinois, Urbana, IL (169)

2:30 Seedling Soybean Bioassay for Evaluation of Tolerance to . T. L. Grey*; University of Georgia, Tifton, GA (170)

2:45 Using Dose-response Curves on Continuous Data to Assess Resistance in Weed Biotypes. J. C. Streibig*1, A. R. Kniss2; 1University of Copenhagen, Taastrup, Denmark, 2University of Wyoming, Laramie, WY (171)

3:00 Break

3:15 Control of Glyphosate Resistant Horseweed and Giant Ragweed in the Same Field of Soybean. P. H. Sikkema*, N. Soltani; University of Guelph, Ridgetown, ON (172)

3:30 Influence of Cover Crops on Management of Amaranthus spp. in Soybeans. M. M. Loux*1, A. Dobbels1, K. Bradley2, V. M. Davis3, W. Johnson4, J. K. Norsworthy5, L. E. Steckel6, B. G. Young7; 1Ohio State University, Columbus, OH, 2University of Missouri, Columbia, MO, 3University of Wisconsin, Madison, WI,

42 43 4Purdue University, West Lafayette, IN, 5University of Arkansas, Fayetteville, AR, 6University of Tennessee, Jackson, TN, 7Southern Illinois University, Carbondale, IL (173)

3:45 Cover Crop Establishment Issues Following Corn and Soybean Herbicides in the Upper Midwest. D. H. Smith*1, T. R. Legleiter2, E. J. Bosak1, W. Johnson2, V. M. Davis1; 1University of Wisconsin, Madison, WI, 2Purdue University, West Lafayette, IN (174)

4:00 A New Glyphosate Resistant Weed Species Confirmed for Northern NSW (AUSTRALIA) and the World – Common Sowthistle (Sonchus Oleraceus). T. S. Cook*, W. P. Davidson, B. L. Miller; NSW Weed Society, Tamworth, Australia (175)

4:15 Herbicide Resistant Lolium spp. in Italy and Mediterranean Area. A. Collavo*, R. Beffa, H. Strek; BayerCropScience AG Frankfurt, Frankfurt, Germany (176)

4:30 Pyroxasulfone Rate and Timing Effects on Italian Ryegrass Control in Wheat. A. M. Knight*1, Z. Taylor2, L. Grier2, W. J. Everman1; 1NCSU, Raleigh, NC, 2North Carolina State University, Raleigh, NC (177)

4:45 Section Business Meeting

TUESDAY AFTERNOON FEBRUARY 10 Section 5. Wildland and Aquatic Invasive Plants

LOCATION: Thoroughbred 3 TIME: 1:30 PM - 4:00 PM CHAIR: John Madsen USDA ARS Davis, CA

*SPEAKER

1:30 Control of Brazilian Peppertree and Australian- pine using Aminocyclpyrachlor. B. A. Sellers*1, J. A. Ferrell2, G. E. MacDonald2; 1University of Florida, Ona, FL, 2University of Florida, Gainesville, FL (178)

44 45 1:45 Operational Use of Herbicide Ballistic Technology (HBT) on a Helicopter Platform Reducing Nascent Miconia (Miconia calvescens DC) populations in the East Maui Watershed. J. Leary*1, J. Gooding2, B. Mahnken3, R. Rodriguez4, D. Jenkins4; 1University of Hawaii, Kula, HI, 2Haleakala National Park, Makawao, HI, 3Maui Invasive Species Committee, Piiholo, HI, 4University of Hawaii at Manoa, Honolulu, HI (179)

2:00 Nuisance Aquatic Vegetation Control: Implications for Fish and Wildlife. R. S. Haynie*1, S. B. Wilde2, S. R. Dodd3; 1SePRO Corporation, Carmel, IN, 2University of Georgia, Athens, GA, 3Nutter and Associates, Inc., Athens, GA (180)

2:15 The Potential Impacts of Evolution on Eurasian Watermilfoil Management. R. A. Thum*1, L. A. Schulte2, S. Parks2, J. N. McNair2; 1Montana State University, Bozeman, MT, 2Grand Valley State University, Muskegon, MI (181)

2:30 Laboratory Studies and Recent Field Monitoring and Assessment of Sonar® (a.i., fluridone) Efficacy for Control and Eradication of New Infestations of Monoecious Hydrilla. M. A. Heilman*1, M. D. Netherland2, R. J. Richardson3, J. J. Nawrocki3; 1SePRO Corporation, Carmel, IN, 2US Army Engineer Research and Development Center, Gainesville, FL, 3NCSU, Raleigh, NC (182)

2:45 Effectiveness of Long-term Monoecious Hydrilla Management Programs in North Carolina. R. J. Richardson*, J. J. Nawrocki; NCSU, Raleigh, NC (183)

3:00 Break

3:15 Spectrum and Efficacy of StingrayR for Aquatic and Riparian Use Patterns. A. Z. Skibo*1, B. Willis2; 1SePRO Corporation, Fort Collins, CO, 2SePRO Research & Technology Campus, Whitakers, NC (184)

3:30 Developing Long-term Control Techniques for Flowering Rush: Mesocosm Trials and Field Implementation. J. D. Madsen*1, K. D. Getsinger2, G. Turnage3; 1USDA ARS, Davis, CA, 2US Army Engineer Research and Development Center, Vicksburg, MS, 3Mississippi State University, Mississippi State, MS (185)

44 45 3:45 Section Business Meeting

TUESDAY AFTERNOON FEBRUARY 10 Section 13. Integrated Weed Management

LOCATION: Thoroughbred 2 TIME: 1:30 PM - 5:00 PM CHAIR: Anil Shrestha California State University Fresno, CA

*SPEAKER

1:30 Herbicide Mixture and Sequential Application for Managing Resistant Phalaris minor. S. Singh*; CCS Haryana Agricultural University, Hisar, India (186)

1:45 Integrated Management of Glyphosate-Resistant Giant Ragweed with Tillage and Herbicides in Corn. Z. A. Ganie*1, L. Sandell2, J. Lindquist1, G. R. Kruger3, M. Jugulam4, D. B. Marx5, A. J. Jhala6; 1University of Nebraska-Lincoln, Lincoln, NE, 2Valent Corporation, Lincoln, NE, 3University of Nebraska-Lincoln, North Platte, NE, 4Kansas State University, Manhattan, KS, 5University of Nebraska-Lincoln, USA, Lincoln, NE, 6University of Florida, Lake Alfred, FL (187)

2:00 Management of Difficult-to-control Weeds in Wheat (Triticum aestivum L.) in Northern India. M. S. Bhullar*, T. Kaur, S. Kaur; Punjab Agricultural University, Ludhiana, India (188)

2:15 Intra-specific Variation for Postemergence Herbicide Tolerance in Peanut. R. G. Leon*1, B. L. Tillman2; 1University of Florida, Jay, FL, 2University of Florida, Marianna, FL (189)

2:30 The Weed Seed Bank is More Diverse and Dynamic in a Sod-based than a Conventional Peanut- Cotton Rotation. R. G. Leon*1, D. L. Wright2, J. J. Marois2; 1University of Florida, Jay, FL, 2University of Florida, Quincy, FL (190)

2:45 Early Season Weed Control- Getting to the Root of the Problem. J. Gal, M. Afifi, E. Lee, L. Lukens, C. J. Swanton*; University of Guelph, Guelph, ON (191)

46 47 3:00 Break

3:15 A Decision Support System for Egyptian Broomrape (Phelipanche aegyptiaca) Control in Processing Tomato in Israel. H. Eizenberg*1, G. Achdari2, Y. Kleifeld3, E. Avivi4; 1Newe Yaar Research Center, ARO, Israel, Ramat Yishay, Israel, 2Department of Weed Research and Phytopathology, Ramat Yishay, Israel, 3Netafim Ltd R&D, Tel Aviv, Israel,4 Ein Harod farm R&D, Kibutz Ein Harod, Israel (192)

3:30 Growth, Reproduction, and Weed Risk Assessment Scoring of Energycane (Saccharum spp.× Saccharum spontaneum) Clones Vary When Grown in Tropical vs. Subtropical Conditions. R. G. Leon*1, R. A. Gilbert2, J. C. Comstock3; 1University of Florida, Jay, FL, 2University of Florida, Gainesville, FL, 3USDA-ARS, Canal Point, FL (193)

3:45 Intelligent Cultivators- New Tool for Improved IWM in Vegetable Crops. R. N. Lati*1, S. A. Fennimore2; 1UC Davis, Salinas, CA, 2University of California Davis, Salinas, CA (194)

4:00 Weed Management in Strip-tilled Sweet Corn and Cabbage. E. Haramoto*1, D. Brainard2; 1University of Kentucky, Lexington, KY, 2Michigan State University, East Lansing, MI (195)

4:15 Blasting the Competition Away: Abrasive Weed Management in Organic Vegetable Cropping Systems. S. E. Wortman*; University of Illinois at Urbana - Champaign, Urbana, IL (196)

4:30 Influence of Cover Crop Termination Timing and High-residue Cultivation on Weed Communities in a Reduced-till Organic Grain System. J. M. Wallace*1, M. Ryan2, C. L. Keene3, S. Mirsky4, M. J. VanGessel5, W. S. Curran3; 1Pennsylvania State University, State College, PA, 2Cornell University, Ithaca, NY, 3Penn State University, University Park, PA, 4USDA, Beltsville, MD, 5University of Delaware, Georgetown, DE (197)

4:45 Section Business Meeting

46 47 TUESDAY AFTERNOON FEBRUARY 10 Section 10. Biocontrol of Weeds

LOCATION: Thoroughbred 3 TIME: 4:15 PM - 5:00 PM CHAIR: Roger Becker Univ. of Minnesota St. Paul, MN

*SPEAKER 4:15 Major Invasive Plant Species on Guam and Biological Control. G. Wiecko1, G. Reddy*2; 1University of Guam, Mangilao, GU, 2Montana State University, Conrad, MT (198)

4:30 Putting Weed Seed Predators to the Test: Weed Germination Reductions Attributable to Vertebrate and Invertebrate Granivores in Fallow Systems. C. K. Blubaugh*, I. Kaplan; Purdue University, West Lafayette, IN (199)

4:45 Section Business Meeting

WEDNESDAY MORNING FEBRUARY 11 Section 1. Agronomic Crops

LOCATION: Thoroughbred 1 TIME: 10:00 AM - 12:00 PM CHAIR: Jonathan Huff Dow AgroSciences Herrin, IL MODERATOR: Drake Copeland Mississippi State Univ Mississippi State, MS

*SPEAKER 10:00 ProvisiaTM Rice System; Weed Management Strategies for Rice. C. Youmans*1, J. Guice2, S. Bowe3, G. Armel3, L. Mankin3, D. Carlson3, J. Harden3; 1BASF Corporation, Dyersburg, TN, 2BASF Corporation, Winnsboro, LA, 3BASF Corporation, Research Triangle Park, NC (200)

10:15 Introduction to a New Arylpicolinate Herbicide from Dow AgroSciences with Utility in Rice and Other Crops. M. R. Weimer*, C. N. Yerkes, P. R. Schmitzer, R.

48 49 K. Mann; Dow AgroSciences, Indianapolis, IN (201)

10:30 Discovery of a New Arylpicolinate Herbicide from Dow AgroSciences with Utility in Rice. C. N. Yerkes*, G. J. Deboer, C. T. Lowe, K. Myung, P. R. Schmitzer; Dow AgroSciences, Indianapolis, IN (202)

10:45 Field and Laboratory Characterization of the Soil Persistance and Activity of a New Arylpicolinate Herbicide. M. Miller*, J. K. Norsworthy; University of Arkansas, Fayetteville, AR (203)

11:00 Utility of a New Arylpicolinate Herbicide from Dow AgroSciences in U.S. Mid-South Rice. D. H. Perry*1, A. T. Ellis2, V. B. Langston3, R. Lassiter4, G. D. Thompson5, R. P. Viator6, L. C. Walton7, M. R. Weimer8; 1Dow AgroSciences, Greenville, MS, 2Dow AgroSciences, Arlington, TN, 3Dow AgroSciences, Woodlands, TX, 4Dow AgroSciences, Raleigh, NC, 5Dow AgroSciences, Omaha, AR, 6Dow AgroSciences, Houma, LA, 7Dow AgroSciences, Fulton, MS, 8Dow AgroSciences, Indianapolis, IN (204)

11:15 Optimizing the Activity of a New Arylpicolinate Herbicide for Use in Rice. M. Miller*, J. K. Norsworthy; University of Arkansas, Fayetteville, AR (205)

11:30 Analysis of Putative Herbicide Tolerant Accessions of Echinochloa oryzoides (Ard.) Fritsch. in Rice. E. K. Altop1, H. Mennan2, J. C. Streibig*3, U. Budaka1, C. Ritz4; 1Ondokuz Mayýs University, Agriculture Faculty, Samsun, Turkey, 2Ondokuz Mayýs University, Agriculture Faculty, Samsun, Turkey, 3University of Copenhagen, Taastrup, Denmark, 4University of Copenhagen, Frederiksberg, Denmark (206)

11:45 ALS Resistance in Loose Silky Bentgrass (Apera spica-venti) - Growing Issue for European Small Grain Production. J. Soukup*, K. Hamouzova, M. Jursik, P. Kosnarova; Czech University of Life Sciences Prague, Prague, Czech Republic (207)

48 49 WEDNESDAY MORNING FEBRUARY 11 Section 9. Weed Biology and Ecology

LOCATION: Thoroughbred 3 TIME: 10:00 AM - 12:00 PM CHAIR: Carlene Chase University of Florida Gainesville, FL

*SPEAKER

10:00 Promoting Adoption of Cover Crops for Weed Suppression by Broadening Their Utility. C. A. Chase*, G. B. Braz, M. E. Swisher; University of Florida, Gainesville, FL (208)

10:15 Environmental Correlates with Weed Seed Bank Community Composition in Organic Vegetable Farms across Northern New England. R. G. Smith*1, E. R. Gallandt2, S. C. Bosworth3, T. M. Davis1, B. Brown2, E. Venturini2, N. Warren1, A. Hazelrigg3; 1University of New Hampshire, Durham, NH, 2University of Maine, Orono, ME, 3University of Vermont, Burlington, VT (209)

10:30 Weed Seed Survival in Corn and Alfalfa Silage: An Evaluation Using Experimental Mini-silos. M. Simard*1, C. Lambert-Beaudet2; 1Agriculture and Agri- Food Canada, Saint-Jean-sur-Richelieu, QC, 2Université Laval, Quebec, QC (210)

10:45 USDA Biofuel Review Process. J. Jones*; USDA- APHIS, Riverdale, MD (211)

11:00 Ambrosia Confertiflora - An Invasive Weed in Israel. Y. Yair*, M. Sibony, B. Rubin; Hebrew University of Jerusalem, Rehovot, Israel (212)

11:15 Recent Invasions of Parthenium hysterophorus in Natural and Agroecosystems in Nepal. J. D. Ranjit1, S. Pokhrel2, A. Shrestha*3; 1Nepal Agricultural Research Council, Kathmandu, Nepal, 2Winrock International - Nepal, Lalitpur, Nepal, 3California State University, Fresno, CA (213)

50 51 11:30 Phenotypic Differentiation, Plasticity, and a Surprising Habitat Shift in One of the World’s Worst Weeds. J. N. Barney*1, D. Atwater1, U. Sezen2, A. Paterson2; 1Virginia Tech, Blacksburg, VA, 2University of Georgia, Athens, GA (214)

11:45 Natural Selection on Morphological Traits of Roadside Weed Populations in Southwestern United States. B. Alfaro*; University of New Mexico, Albuquerque, NM (215)

WEDNESDAY MORNING FEBRUARY 11 Section 11. Physiology

LOCATION: Thoroughbred 5-7 TIME: 10:00 AM - 12:00 PM CHAIR: Roland Beffa Bayer CropScience Frankfurt, Germany

*SPEAKER

10:00 A Primer on Understanding Glyphosate Translocation and Resistance. D. Sammons*1, A. Herr1, R. Eilers1, D. Wang1, E. Ostrander2; 1Monsanto, St. Louis, MO, 2Washington University, St. Louis, MO (216)

10:15 Not All Who Wander Are Lost: A BAC- based Pursuit for the Full Sequence of the EPSPS Glyphosate Resistance Element in Amaranthus palmeri. W. Molin*1, A. A. Wright2, C. Saski3; 1USDA- ARS, Stoneville, MS, 2Mississippi State University, Stoneville, MS, 3Clemson University, Clemson, SC (217)

10:30 Extending the EPSPS Amplicon: Steps Towards Defining the Duplication Mechanism. D. A. Giacomini*1, N. Tao2, T. Ulmasov2, P. Latreille2, R. Kerstetter2, S. M. Ward1, P. Westra1, D. Sammons3; 1Colorado State University, Ft. Collins, CO, 2Monsanto, Chesterfield, MO,3 Monsanto, St. Louis, MO (218)

10:45 Configuration of EPSPS Gene Copies on Glyphosate-resistant Common Waterhemp (Amaranthus rudis) Chromosomes. A. Dillon, T. Danilova, D. Peterson, B. Gill, M. Jugulam*; Kansas State University, Manhattan, KS (219)

50 51 11:00 Stability of EPSPS Gene Copies in Glyphosate- resistant Palmer amaranth (Amaranthus palmeri). A. Godar*, D. Koo, D. Peterson, B. Gill, M. Jugulam; Kansas State University, Manhattan, KS (220)

11:15 Mapping of EPSPS Gene Copies on Pachytene Chromosomes of Glyphosate-resistant Waterhemp (Amaranthus rudis). A. Godar*, D. Koo, D. Peterson, B. Gill, M. Jugulam; Kansas State University, Manhattan, KS (221)

11:30 BioDirect(tm) and Managing Herbicide Resistant Amaranths. D. Sammons*, S. Navarro, K. Croon, J. Schmuke, D. Wang, N. Rana, G. Griffith, R. Godara; Monsanto, St. Louis, MO (222)

11:45 Section Business Meeting

WEDNESDAY MORNING FEBRUARY 11 Graduate Student Professional Development Workshop

LOCATION: Thoroughbred 4 TIME: 10:00 AM - 11:30 AM CHAIR: Katelyn Venner Virginia Tech Blacksburg, VA

WEDNESDAY AFTERNOON FEBRUARY 11 Herbicide Resistance Summit II - Are We Going to Do the Same Thing and Expect a Different Outcome?

LOCATION: Bluegrass Ballroom 1 TIME: 1:00 PM - 5:00 PM CHAIR: David Shaw Mississippi State University Mississippi State, MS

*SPEAKER

1:00 Introduction

1:10 Understanding the Social within a Holistic Weed Management Strategy. R. A. Jussaume*; Michigan State University, East Lansing, MI (223)

52 53 1:20 The Economics of Resistance Management. G. Frisvold*1, T. Hurley2; 1University of Arizona, Tucson, AZ, 2University of Minnesota, St. Paul, MN (224)

1:30 Toward a Community-Based Approach for Weed Management. D. E. Ervin*1, G. Frisvold2; 1Portland State University, Portland, OR, 2University of Arizona, Tucson, AZ (225)

1:40 Carrots and Sticks: Incentives and Regulations for Herbicide Resistance Management and Changing Behavior. M. Barrett*1, D. Shaw2, J. Soteres3; 1University of Kentucky, Lexington, KY, 2Mississippi State University, Mississippi State, MS, 3Monsanto (retired), St. Louis, MO (226)

1:50 Approaches to Holistic Weed Managment in Order to Manage Herbicide-resistant Weeds. M. D. Owen*; Iowa State University, Ames, IA (227)

2:00 Rethinking Education and Outreach for Successful Herbicide Resistance Management. A. Asmus1, J. Schroeder*2; 1Asmus Farm Supply, Inc, Rake, IA, 2New Mexico State University, Las Cruces, NM (228)

2:10 A Call to Action for Herbicide Resistance Management. H. Coble*; NC State University, Cary, NC (229)

2:20 Discussion

2:30 Can You Manage Herbicide Resistance Better than a Freshman? A Role-Playing Game to Demonstrate Community-Based Resistance Management. G. Frisvold*1, A. Asmus2; 1University of Arizona, Tucson, AZ, 2Asmus Farm Supply, Inc, Rake, IA (230)

3:00 Break

3:30 Can You Manage Herbicide Resistance Better than a Freshman (continued). G. Frisvold*; University of Arizona, Tucson, AZ (231)

4:30 Discussion

52 53 WEDNESDAY AFTERNOON FEBRUARY 11 Section 2. Horticultural Crops

LOCATION: Thoroughbred 2 TIME: 1:00 PM - 4:45 PM CHAIR: Dennis Odero University of Florida Belle Glade, FL

*SPEAKER

1:00 Weed Control and Radish Response to s- in Organic Soil. D. C. Odero*, J. V. Fernandez, N. Havranek; University of Florida, Belle Glade, FL (232)

1:15 Preliminary Trials for Weed Management in Quinoa. T. W. Miller*, C. R. Libbey; Washington State University, Mount Vernon, WA (233)

1:30 Influence of Ground-cover Competition on Growth, Yield, and Berry Quality in Cabernet Franc Grape. N. T. Basinger*, K. Jennings, D. W. Monks, S. E. Spayd, S. Chaudhari; NCSU, Raleigh, NC (234)

1:45 Critical Period of Weed Removal for Quinoa and Grain Amaranth in Ontario Canada. R. E. Nurse*, E. R. Page; Agriculture and Agri-Food Canada, Harrow, ON (235)

2:00 IR-4 Update and New Strategic Plan: Vision 2020. D. L. Kunkel*1, M. Arsenovic1, J. J. Baron1, M. K. Braverman1, R. Batts2; 1Rutgers University, Princeton, NJ, 2North Carolina State University, Raleigh, NC (236)

2:15 Weed Control in Culinary Herbs. C. J. Phillippo*, B. H. Zandstra; Michigan State University, East Lansing, MI (237)

2:30 New Perspectives on Preemergence Onion Weed Control. B. H. Zandstra*, C. J. Phillippo; Michigan State University, East Lansing, MI (238)

2:45 Evaluation of the Carryover Potential of Sulfentrazone in California Vegetable Crops. S. A. Fennimore*, J. S. Rachuy; University of California Davis, Salinas, CA (239)

54 55 3:00 Break

3:15 Implications of Off-Target Herbicides in Potato Seed Production. J. Colquhoun*, D. Heider, R. Rittmeyer; University of Wisconsin, Madison, WI (240)

3:30 Season-Long Weed Management Programs in Garden Beets. D. Heider*, J. Colquhoun, R. Rittmeyer; University of Wisconsin, Madison, WI (241)

3:45 Impact of Air Temperature and Herbicide Concentration on Root Uptake of Gramoxone in Pepper. N. Boyd*; University of Florida, Wimauma, FL (242)

4:00 Absorption, Translocation, and Metabolism of Halosulfuron in Grafted Solanaceous Crops. S. Chaudhari*, K. Jennings, D. W. Monks, F. Louws; NCSU, Raleigh, NC (243)

4:15 Common Ragweed Competition in Potato Grown in Seepage Irrigation at Different Water Table Depths. P. J. Dittmar*, L. Zotarelli; University of Florida, Gainesville, FL (244)

4:30 Section Business Meeting

WEDNESDAY AFTERNOON FEBRUARY 11 Section 3. Turf and Ornamental Crops

LOCATION: Thoroughbred 3 TIME: 1:00 PM - 3:15 PM CHAIR: Patrick McCullough University of Georgia Griffin, GA

*SPEAKER

1:00 The Effect of Indaziflam on Bermudagrass Health and Growth. L. Ou*, M. Jeffries, T. Gannon; NCSU, Raleigh, NC (245)

1:15 Single and Sequential Applications of Indaziflam for Broadleaf and Long-term Annual Grass Control in Warm-season Turfgrass. B. J. Brecke*, R. G. Leon; University of Florida, Jay, FL (246)

54 55 1:30 Dallisgrass Management in Turfgrass. J. Derr*, A. Nichols; Virginia Tech, Virginia Beach, VA (247)

1:45 Investigating Creeping Bentgrass Response to Methiozolin, and Aeration. K. A. Venner*, S. Askew; Virginia Tech, Blacksburg, VA (248)

2:00 Annual Blue-eyed Grass (Sisyrinchium rosulatum) Control in Bermudagrass. M. L. Flessner*1, S. McElroy2; 1Virginia Tech, Blacksburg, VA, 2Auburn University, Auburn, AL (249)

2:15 Dislodgeable 2,4-D On Overseeded and Non- overseeded Bermudagrass Athletic Fields. M. Jeffries*, T. Gannon, K. Ahmed; NCSU, Raleigh, NC (250)

2:30 Evaluation of Selective Herbicides for Deertongue Control in Fine Fescue. S. S. Rana*, S. Askew, J. R. Brewer; Virginia Tech, Blacksburg, VA (251)

2:45 Impact of Application Parameters on the Efficacy of the Bioherbicide FeHEDTA. J. C. Wolfe*, J. C. Neal, C. D. Harlow; NCSU, Raleigh, NC (252)

3:00 Section Business Meeting

WEDNESDAY AFTERNOON FEBRUARY 11 Section 9. Weed Biology and Ecology

LOCATION: Thoroughbred 5-7 TIME: 1:00 PM - 4:30 PM CHAIR: Carlene Chase University of Florida Gainesville, FL

*SPEAKER

1:00 Occurrence of Arable Weeds along Roadsides in Eastern Arkansas. N. E. Korres*1, J. K. Norsworthy1, M. V. Bagavathiannan2; 1University of Arkansas, Fayetteville, AR, 2Texas A&M University, College Station, TX (253)

1:15 Validation of a Model to Simulate Herbicide Resistance Evolution in Barnyardgrass in Rice- soybean Production System. M. V. Bagavathiannan*1, J. K. Norsworthy2, K. L. Smith3, P. Neve4; 1Texas A&M University, College Station, TX, 2University of

56 57 Arkansas, Fayetteville, AR, 3Cheminova, Groveton, TX, 4Rothamsted Research, Harpenden, England (254)

1:30 Role of Anti-Oxidant Machinery in Conferring Glyphosate Resistance to Amaranthus palmeri. A. S. Maroli*1, V. K. Nandula2, N. Tharayil1; 1Clemson University, Clemson, SC, 2USDA, Stoneville, MS (255)

1:45 Differences in Final Biomass Among Glyphosate-resistant and Glyphosate-susceptible Maternal Families of Conyza canadensis in Ohio: A Pilot Field Experiment. Z. T. Beres*, A. A. Snow, J. T. Parrish; Ohio State University, Columbus, OH (256)

2:00 Effect of Water Stress on Growth and Seed Production of Glyphosate-Resistant and –Susceptible Common Waterhemp. D. Sarangi*1, S. Z. Knezevic2, J. Lindquist3, S. Irmak1, A. J. Jhala4; 1University of Nebraska, Lincoln, NE, 2University of Nebraska, Concord, NE, 3University of Nebraska-Lincoln, Lincoln, NE, 4University of Florida, Lake Alfred, FL (257)

2:15 Quantifying Weed Seedbank Density Effects on Pendimethalin Control Outcomes. B. J. Schutte*, A. Cunningham; New Mexico State University, Las Cruces, NM (258)

2:30 Cropping Systems and the Prevalence of Giant Ragweed (Ambrosia trifida L): from the 1950’s to Present. E. R. Page*, R. E. Nurse; Agriculture and Agri- Food Canada, Harrow, ON (259)

2:45 Crop Species and Seeding Rate Effects on Light Quality and Weed Populations. K. N. Harker*, J. T. O’Donovan; Agriculture & Agri-Food Canada, Lacombe, AB (260)

3:00 Break

3:15 Kin Recognition and the Potential to Influence Competitive Interactions in Crops. G. P. Murphy*, R. C. Van Acker, I. Rajcan, C. J. Swanton; University of Guelph, Guelph, ON (261)

3:30 Transcriptional Analyses of Sweet Corn Competition. E. Choe, M. M. Williams II*; USDA-ARS, Urbana, IL (262)

56 57 3:45 Growth Characteristics of a Weed-suppressive Indica x Non-suppressive Tropical Japonica Rice Mapping Population. D. R. Gealy*, Y. Jia, S. Pinson; USDA-ARS, Stuttgart, AR (263)

4:00 Connections are Everything: Influence of Host Species on mRNA Exchange Between Dodder and its Hosts. G. Kim, J. Westwood*; Virginia Tech, Blacksburg, VA (264)

4:15 Section Business Meeting

WEDNESDAY AFTERNOON FEBRUARY 11 Section 12. Soil and Environmental Aspects

LOCATION: Thoroughbred 3 TIME: 3:30 PM - 5:00 PM CHAIR: Harry Strek Bayer CropScience Frankfort, Germany

*SPEAKER

3:30 Does Previous Atrazine History Enhance Atrazine Degradation in US Soils? T. C. Mueller*1, W. S. Curran2, R. Scott3, C. Sprague4, D. Stephenson5, D. Miller6, E. Prostko7, W. Grichar8, J. Martin9, L. Krutz10, K. Bradley11, L. E. Steckel12, M. L. Bernards13, M. D. Owen14, P. A. Dotray15, R. Currie16, S. A. Clay17, S. Z. Knezevic18, V. M. Davis19, R. Klein20; 1University of Tennessee, Knoxville, TN, 2Penn State University, University Park, PA, 3University of Arkansas, Lonoke, AR, 4Michigan State University, East Lansing, MI, 5LSU AgCenter, Alexandria, LA, 6Louisiana State University, St. Joe, LA, 7University of Georgia, Tifton, GA, 8Texas A&M AgriLife Research, Lubbock, TX, 9University of Kentucky, Princeton, KY, 10Mississippi State University, Stoneville, MS, 11University of Missouri, Columbia, MO, 12University of Tennessee, Jackson, TN, 13Western Illinois University, Macomb, IL, 14Iowa State University, Ames, IA, 15Texas Tech University, Texas A&M AgriLife Research and Extension Service, Lubbock, TX, 16Kansas State University, Manhattan, KS, 17SDSU, Brookings, SD, 18University of Nebraska, Concord, NE, 19University of Wisconsin, Madison, WI, 20University of Nebraska, North Platte, NE (265)

58 59 3:45 The Effect of pH on Amicarbazone Persistence in Aerobic Soils. K. Ahmed*, T. Gannon, M. Jeffries; NCSU, Raleigh, NC (266)

4:00 The Effect of Soil Moisture Content at Treatment on Lateral Herbicide Movement. T. Gannon*, M. Jeffries, D. Mahoney; NCSU, Raleigh, NC (267)

4:15 Effect of Herbicide Management Strategy on

N2O Emissions from Non-crop, Corn, and Soybean Systems. R. R. Bailey*, T. R. Butts, V. M. Davis; University of Wisconsin, Madison, WI (268)

4:30 A Novel Test System to Quantify Differences in Tank Cleaner Effectiveness. T. C. Mueller*1, F. Sexton2; 1University of Tennessee, Knoxville, TN, 2Exacto, Inc, Sharon, WI (269)

4:45 Section Business Meeting

WEDNESDAY AFTERNOON FEBRUARY 11 WSSA Business Meeting

LOCATION: Thoroughbred 4 TIME: 5:00 PM - 6:00 PM CHAIR: Joseph DiTomaso UC Davis Davis, CA

THURSDAY MORNING FEBRUARY 12 Section 1. Agronomic Crops

LOCATION: Thoroughbred 1 TIME: 8:00 AM - 11:30 AM CHAIR: Jonathan Huff Dow AgroSciences Herrin, IL MODERATOR: Drew Denton Mississippi State Univ Mississippi State, MS

*SPEAKER 8:00 A Product Portfolio for Selective Weed Control in Corn: Flexible Solutions Based on Various Herbicide and Safener Assets. C. H. Rosinger*; Bayer CropScience, Frankfurt, Germany (270)

58 59 8:15 Characterization of Multiple Herbicide Resistance in Kochia Accessions from Montana. P. Jha*, C. A. Lim, V. Kumar, S. Leland; Montana State University, Huntley, MT (271)

8:30 Distribution and Dose Response of ALS- Inhibiting Herbicide Resistant Shattercane and Johnsongrass Populations from Kansas and Nebraska. R. Werle*1, A. J. Jhala1, M. K. Yerka2, J. Lindquist1; 1University of Nebraska-Lincoln, Lincoln, NE, 2ARS- USDA, Lincoln, NE (272)

8:45 Corn and Grain Sorghum Yield Response to Irrigation and Weed Management . B. W. Schrage*, W. J. Everman; NCSU, Raleigh, NC (273)

9:00 Grass Control in Sorghum as Impacted by Cultural Practices and Weed Management. T. E. Besancon*, W. J. Vincent, A. M. Knight, W. J. Everman; NCSU, Raleigh, NC (274)

9:15 Tolpyralate (SL-573): A New Post-Emergence Herbicide for Weed Control in Corn. H. Kikugawa*1, Y. Satake2, D. J. Tonks3, M. Grove4, S. Nagayama5, M. Tsukamoto2; 1Ishihara Sangyo Kaisha, LTD, Osaka, Japan, 2Ishihara Sangyo Kaisha, LTD, Shiga, Japan, 3ISK Biosciences, Kearney, MO, 4ISK Biosciences, Spring, TX, 5Ishihara Sangyo Kaisha, LTD, Mie, Japan (275)

9:30 Tolpyralate (SL-573): An Overview of Performance for Weed Control in Corn in the U.S. D. J. Tonks*1, M. Grove2, H. Kikugawa3, M. Parks1, S. Nagayama4, M. Tsukamoto5; 1ISK Biosciences, Kearney, MO, 2ISK Biosciences, Spring, TX, 3Ishihara Sangyo Kaisha, LTD, Osaka, Japan, 4Ishihara Sangyo Kaisha, LTD, Mie, Japan, 5Ishihara Sangyo Kaisha, LTD, Shiga, Japan (276)

9:45 Impacts of Atrazine Prohibition on Roundup Ready Adoption, Tillage, and Number of Herbicide Sites-of-Action Used in Wisconsin Crop Production. F. Dong1, P. D. Mitchell*1, R. A. Recker2, V. M. Davis1; 1University of Wisconsin, Madison, WI, 2Monsanto, Mankato, MN (277)

10:00 Break

60 61 10:15 Assessment of Wisconsin Crop Production Systems Without Recent Atrazine Use and the Impact to Herbicide Resistance Management. V. M. Davis*1, R. A. Recker2, F. Dong1, P. D. Mitchell1; 1University of Wisconsin, Madison, WI, 2Monsanto, Mankato, MN (278)

10:30 Introduction of SYN-A205 for Atrazine-free Weed Control in Corn. R. D. Lins*1, T. H. Beckett2, S. E. Cully3, J. Foresman2, G. D. Vail2; 1Syngenta Crop Protection, Renville, MN, 2Syngenta Crop Protection, Greensboro, NC, 3Syngenta Crop Protection, Marion, IL (279)

10:45 Acuron Herbicide: Preemergence Weed Control and Corn Safety. R. Jain*1, M. A. Cutulle1, T. H. Beckett2, S. E. Cully3, R. D. Lins4, G. D. Vail2; 1Syngenta Crop Protection, Vero Beach, FL, 2Syngenta Crop Protection, Greensboro, NC, 3Syngenta Crop Protection, Marion, IL, 4Syngenta Crop Protection, Renville, MN (280)

11:00 Pethoxamid-A New Herbicide for Use in Agronomic & Horticultural Crops. B. Hunt*1, J. Barrentine2, T. Hayden2, B. Jacobson2, A. Kendig2, M. Krull2, T. Ksander2, G. Radeva3, K. L. Smith4; 1Cheminova A/S, Lemvig, Denmark, 2Cheminova Inc, Research Triangle Park, NC, 3Cheminova Canada Inc, Kilworth, ON, 4Cheminova, Groveton, TX (281)

11:15 Performance of a Novel Clethodim Formulation. R. L. Pigati*1, G. K. Dahl2, J. V. Gednalske3, E. P. Spandl1, L. J. Hennemann3, J. A. Gillilan4, L. Magidow5, A. Clark5; 1Winfield, Shoreview, MN, 2Winfield Solutions LLC, St. Paul, MN, 3Winfield, River Falls, WI, 4Winfield, Springfield, TN, 5WinField / Land O Lakes, River Falls, WI (282)

THURSDAY MORNING FEBRUARY 12 Section 11. Physiology LOCATION: Thoroughbred 5-7 TIME: 8:00 AM - 11:30 AM CHAIR: Roland Beffa Bayer CropScience Frankfort, Germany

*SPEAKER

60 61 8:00 Light, Weeds and Carbon Partitioning – How Does a Neighbour Do It? A. G. McKenzie-Gopsill*, S. Amirsadeghi, L. Lukens, E. Lee, C. J. Swanton; University of Guelph, Guelph, ON (283)

8:15 Thiamethoxam Enhances Soybean Competitive Ability with Weeds. H. Kim*, M. Afifi, E. Lee, L. Lukens, C. J. Swanton; University of Guelph, Guelph, ON (284)

8:30 Sarmentine, a Natural Herbicide from Long Pepper (Piper longum) Fruit with Multiple Mechanisms of Action. F. E. Dayan*1, D. K. Owens1, R. Asolkar2, L. Boddy2; 1USDA-ARS, University, MS, 2Marrone Bio Innovations, Davis, CA (285)

8:45 Background, History, and Current Status of Dicamba Resistant Kochia in the Western US and Canada. P. Westra*1, T. A. Gaines1, M. Jugulam2; 1Colorado State University, Ft. Collins, CO, 2Kansas State University, Manhattan, KS (286)

9:00 Mechanism of Atrazine and Mesotrione Resistance in Palmer Amaranth (Amaranthus palmeri). B. Sridevi, A. Godar, C. Thompson, D. Peterson, M. Jugulam*; Kansas State University, Manhattan, KS (287)

9:15 Ploidy and Multiple Resistance in Echinochloa spp. N. R. Burgos*1, C. E. Rouse1, A. J. Fischer2, A. L. Lawton-Rauh3; 1University of Arkansas, Fayetteville, AR, 2University of California, Davis, Davis, CA, 3Clemson University, Clemson, SC (288)

9:30 Herbicide-resistant Weedy Rice Traits and Management. V. Singh*1, N. R. Burgos1, S. Singh1, L. Earnest2, R. Scott3, S. Basu1, A. Pereira1, D. Gealy4, A. Caicedo5; 1University of Arkansas, Fayetteville, AR, 2University of Arkansas, Rohwer, AR, 3University of Arkansas, Lonoke, AR, 4USDA- ARS, Stuttgart, AR, 5University of Massachusetts Amherst, Amherst, MA (289)

9:45 Mode-of-Action Analysis of a New Arylpicolinate Herbicide from Dow AgroSciences. J. L. Bell*1, P. R. Schmitzer1, M. R. Weimer1, R. M. Napier2, J. M. Prusinska2; 1Dow AgroSciences, Indianapolis, IN, 2University of Warwick, Coventry, England (290)

62 63 10:00 Break

10:15 Characterization of an ALS-Resistant Yellow Nutsedge Population from an Arkansas Rice Field. P. Tehranchian*1, J. K. Norsworthy1, S. McElroy2, V. K. Nandula3, D. Riar4, R. Scott5; 1University of Arkansas, Fayetteville, AR, 2Auburn University, Auburn, AL, 3USDA, Stoneville, MS, 4Dow AgroSciences, Indianapolis, IN, 5University of Arkansas, Lonoke, AR (291)

10:30 Uptake and Translocation of Postemergence Applied C14-halosulfuron to Purple Nutsedge. X. Li*1, T. L. Grey1, T. M. Webster2, B. H. Blanchett3; 1University of Georgia, Tifton, GA, 2USDA-ARS, Tifton, GA, 3University of Georgia, Valdosta, GA (292)

10:45 The Tolerance Mechanisms of Grasses to Isoxaben. C. Brabham*, T. L. Burke, M. Barrett, S. Debolt; University of Kentucky, Lexington, KY (293)

11:00 Inter-species Protein Trafficking Endows Dodder (Cuscuta pentagona) with a Host-Specific Herbicide-tolerant Trait. L. Jiang1, F. Qu2, Z. Li1, D. Doohan*2; 1China Agricultural University, Beijing, Peoples Republic, 2Ohio State University, Wooster, OH (294)

11:15 Effect of Salinity on Host Parasite Relationship in Phelipanche aegyptiaca: Physiological Study. A. Cochavi*1, J. E. Ephrath1, S. Rachmilevich1, H. Eizenberg2; 1French Associates Institute for Agriculture and Biotechnology of Drylands, Sede Boqer, Israel, 2Newe Yaar Research Center, ARO, Israel, Ramat Yishay, Israel (295)

THURSDAY MORNING FEBRUARY 12 Section 7. Education and Extension

LOCATION: Thoroughbred 2-3 TIME: 8:00 AM - 11:15 AM CHAIR: Todd Baughman Oklahoma State University Lone Grove, OK

*SPEAKER

62 63 8:00 Experiment Design Using ARM Software. S. R. Gylling*; Gylling Data Management, Inc., Brookings, SD (296)

8:15 Rstats4ag.org - A New Website to Help Agricultural Researchers Learn R. A. R. Kniss*1, J. C. Streibig2; 1University of Wyoming, Laramie, WY, 2University of Copenhagen, Taastrup, Denmark (297)

8:30 Pay-for-play Publishing Scams: The Threat to Scientific Journals. S. M. Ward*; Colorado State University, Ft. Collins, CO (298)

8:45 Can We Learn From the Past? Antique Resources for WSSA. J. D. Byrd, Jr.*; Mississippi State University, Mississippi State, MS (299)

9:00 Back to the Future with Non-GMO Herbicide Programs. D. Lingenfelter*, W. S. Curran; Penn State University, University Park, PA (300)

9:15 “Zero Tolerance”: A Community-Based Management Program for Glyphosate-Resistant Palmer Amaranth in Arkansas. K. L. Smith*1, J. K. Norsworthy2, R. Scott3, A. M. Vangilder4, R. L. Nichols5, T. Barber6; 1Cheminova, Groveton, TX, 2University of Arkansas, Fayetteville, AR, 3University of Arkansas, Lonoke, AR, 4University of Arkansas, Rector, AR, 5Cotton Incorporated, Cary, NC, 6University of Arkansas, Little Rock, AR (301)

9:30 Effect of Herbicide and Application Timing on Residual Control of Horseweed Resistant to Glyphosate and ALS Inhibitors. B. Reeb*, M. M. Loux, A. Dobbels; Ohio State University, Columbus, OH (302)

9:45 Our Efforts to Reduce the Incidence of Off- target Movement of Auxinic Herbicides in High Value Crops. G. Rhodes, Jr.*, T. D. Israel; University of Tennessee, Knoxville, TN (303)

10:00 Break

10:15 Teaching Undergraduate Weed Science as an Online Course: Student and Teacher Perspectives. P. B. Trewatha*; Missouri State University, Springfield, MO (304)

64 65 10:30 Unifying the Efforts in Teaching, Research, and Extension is Vital for the Advancement in Weed Science. H. Z. Ghosheh*1, L. Grabau2; 1Jordan University of Science and Technology, Irbid, Jordan, 2University of Kentucky, Lexington, KY (305)

10:45 Mobile Applications as a Pest Management Tool for Extension Services. A. Rana*, J. Derr; Virginia Tech, Virginia Beach, VA (306)

11:00 Section Business Meeting

64 65 66 67 66 67 AUTHOR INDEX

A

Abhugo, Seth ...... 1 Acciaresi, Horacio A...... 6, 122 Achdari, Guy ...... 135, 192 Ackley, Bruce A...... 56, 85 Afifi, Maha ...... 191, 284 Agostinetto, Dirceu ...... 109, 111 Ahmed, Khalied ...... 47, 250, 266 Alarcon-Reverte, Rocio ...... 101, 107, 108 Alcántara de la Cruz, Ricardo ...... 123, 124, 125, 128 Alfaro, Brian ...... 215 Alizadeh, Hassan ...... 68 Allen, Sara ...... 163 Allen, Sara M...... 139 Altop, Emine K...... 206 Alves Correa, Elza ...... 19 Amirsadeghi, Sasan ...... 283 Anderson, James V...... 161 Armel, Greg ...... 200 Arsenovic, Marija ...... 236 Arslan, Zubeyde F...... 129 Asbury, Andy ...... 54, 154 Ashigh, Jamshid ...... 106 Askew, Shawn ...... 46, 48, 248, 251 Asmus, Amy ...... 228, 230 Asolkar, Ratnakar ...... 285 Atwater, Daniel ...... 214 Atwood, Lesley W...... 71 Avila, Luis A...... 9, 109, 111 Avivi, Eitan ...... 135, 192

B

Baez, Ignacio ...... 160 Bagavathiannan, Muthukumar V...... 253, 254 Bailey, Rebecca R...... 268 Banuelos, Gerardo ...... 127 Barber, Tom ...... 301 Barbercheck, Mary ...... 5 Barney, Jacob N...... 214 Baron, Jerry J...... 236 Barrentine, Jim ...... 281 Barrett, Michael ...... 51, 116, 148, 226, 293 Basinger, Nicholas T...... 234

68 69 Basu, Supratim ...... 289 Bates, Gary E...... 149 Batts, Roger ...... 236 Baughman, Todd A...... 14, 20 Becker, Roger ...... 129 Beckett, Tom H...... 167, 279, 280 Beckie, Hugh J...... 126 Beffa, Roland ...... 176 Bell, Jared L...... 290 Beres, Zachery T...... 85, 256 Bernacchi, Leigh ...... 74 Bernards, Mark L...... 7, 8, 169, 265 Besancon, Thierry E...... 22, 274 Bhullar, Makhan S...... 188 Biazzo, Jeromy ...... 53 Biggs, Meghan ...... 133 Bish, Mandy D...... 133 Bizeau, Alexandre ...... 41 Blakeslee, Joshua ...... 115 Blanchett, Brian H...... 292 Blanco-Canqui, Humberto ...... 8 Blubaugh, Carmen K...... 95, 199 Boddy, Louis ...... 285 Bond, Jason ...... 84, 98, 105 Borges, Carolina T...... 109, 111 Bosak, Elizabeth J...... 174 Bosworth, Sidney C...... 209 Bowe, Steven ...... 144, 200 Boyd, Nathan ...... 242 Bozeman, Luke ...... 62 Brabham, Chad ...... 116, 293 Bradley, Kevin ...... 2, 131, 133, 173, 265 Brainard, Daniel ...... 195 Braverman, Michael K...... 236 Braz, Guilherme B...... 208 Brecke, Barry J...... 246 Brewer, John R...... 46, 48, 251 Brim-DeForest, Whitney B...... 92, 101 Brommer, Chad ...... 143, 144 Brown, Bryan ...... 209 Brown, Patrick ...... 86 Bruns, Dain E...... 167 Budaka, Unal ...... 206 Burgos, Nilda R...... 1, 288, 289 Burke, Ian C...... 74, 82 Burke, Tara L...... 148, 293 Bushoven, John ...... 78

68 69 Butts, Thomas R...... 2, 268 Byrd, Jr., John D...... 299

C

Caicedo, Ana ...... 289 Camargo, Edinalvo R...... 9 Carbonari, Caio A...... 72, 112 Carlson, Dale ...... 200 Castaneda, Eswin ...... 67 Catchot, Angus ...... 11, 65 Caton, Barney ...... 160 Cavenaghi, Anderson L...... 112 Chahal, Parminder S...... 8 Chao, Wun S...... 161 Chase, Carlene A...... 208 Chastagner, Gary A...... 38 Chaudhari, Sushila ...... 35, 234, 243 Chen, Yin ...... 115 Choe, Eunsoo ...... 262 Christenson, Andi M...... 81 Cichy, Karen A...... 10 Clark, Andrea ...... 62, 282 Clay, Sharon A...... 4, 76, 265 Clermont, Kristen ...... 89 Coble, Harold ...... 229 Coburn, Carl M...... 120 Coburn, Grady ...... 28 Cochavi, Amnon ...... 96, 117, 295 Collakova, Eva ...... 89 Collavo, Alberto ...... 176 Colquhoun, Jed ...... 240, 241 Comstock, Jack C...... 193 Conway, Mikel ...... 39 Cook, Tony S...... 175 Copeland, J. Drake ...... 11, 23, 65 Cornelius, Cody ...... 133 Crampton, Mollee ...... 105 Creamer, Nancy ...... 119 Croon, Kent ...... 222 Cully, Scott E...... 279, 280 Cunningham, Ashley ...... 258 Curran, William S...... 5, 197, 265, 300 Currie, Randall ...... 265 Cutulle, Mathew A...... 280

70 71 D

Dahl, Gregory K...... 282 Dalazen, Giliardi ...... 24 Daniel, Jim T...... 61, 157 Danilova, Tatiana ...... 219 Darnell, Lauren ...... 39 Davidson, William P...... 175 Davis, Adam ...... 79 Davis, Thomas M...... 209 Davis, Vince M. ...2, 82, 131, 173, 174, 265, 268, 277, 278 Dayan, Franck E...... 19, 285 De Prado, Rafael A...... 123, 124, 125, 128 Debauw, Annie ...... 38 Deboer, Gerrit J...... 202 Debolt, Seth ...... 116, 293 Dennis, Michelle ...... 78 Denton, Drew ...... 11, 23, 65 Derr, Jeffrey ...... 39, 155, 247, 306 Devkota, Pratap ...... 63, 156 Diesel, Francielli ...... 125 Dille, Anita ...... 81, 82 Dillon, Andrew ...... 219 Dionigi, Chris P...... 158 DiTommaso, Antonio ...... 53, 68 Dittmar, Peter J...... 244 Dobbels, Anthony ...... 173, 302 Dodd, Shelley R...... 180 Dodds, Darrin M...... 11, 23, 65 Dogramaci, Munevver ...... 161 Dong, Fengxia ...... 277, 278 Doohan, Douglas ...... 32, 33, 34, 115, 294 Dotray, Peter A...... 12, 20, 64, 145, 265 Duan, Yushan ...... 38 Duke, Stephen O...... 19, 164 Dunne, Cheryl L...... 166

E

Earnest, Larry ...... 1, 289 Edwards, Rick J...... 32, 33 Eilers, Robert ...... 216 Eizenberg, Hanan ...... 88, 96, 117, 135, 192, 295 Ellis, Andrew T...... 204 Emerine, Sherrie ...... 160 Ephrath, Jhonathan E...... 96, 117, 295 Erazo-Barradas, Mauricio ...... 76

70 71 Erickson, John E...... 130 Ernst, Emily E...... 85 Ervin, David E...... 225 Estorninos, Leopoldo ...... 1 Eubank, Thomas ...... 105 Everman, Wesley J. ....15, 22, 82, 119, 142, 177, 273, 274 Ezell, Andrew W...... 152, 153

F

Farmer, Jaime ...... 131, 133 Felix, Joel ...... 104 Feng, Ching ...... 143 Fennimore, Steven A...... 194, 239 Fernandez, Jose V...... 232 Fernández-Moreno, Pablo T...... 123, 124, 125, 128 Ferrell, Jason A...... 130, 134, 178 Ferry-Abee, Allison ...... 127 Fischer, Albert J...... 24, 92, 101, 107, 108, 288 Flanagan, Roy ...... 39 Flenniken, Michelle ...... 104, 110 Flessner, Michael L...... 249 Fletcher, Reginald S...... 31 Fleuridor, Louceline ...... 33 Flint-Garcia, Sherry ...... 4 Foley, Michael E...... 161 Forcella, Frank ...... 21 Foresman, John ...... 279 Frandsen, Kyle G...... 43 Frene, Rafael ...... 29 Frihauf, John ...... 144 Frisvold, George ...... 224, 225, 230, 231 Fritz, Vincert A...... 129

G

Gaines, Todd A...... 162, 286 Gal, Jessica ...... 191 Gallandt, Eric R...... 60, 209 Gallon, Mateus ...... 125 Ganie, Zahoor A...... 18, 187 Gannon, Travis ...... 47, 118, 245, 250, 266, 267 Gealy, David ...... 289 Gealy, David R...... 263 Gednalske, Joe V...... 282 Getsinger, Kurt D...... 185 Ghosheh, Hani Z...... 305

72 73 Giacomini, Darci A...... 58, 218 Gilbert, Robert A...... 193 Gill, Bikram S ...... 219, 220, 221 Gillilan, Jo A...... 282 Godar, Amar ...... 220, 221, 287 Godara, Rakesh ...... 222 Goffnett, Amanda M...... 10 Gollihue, Jarrad ...... 116 Gomes, Giovanna L...... 72, 112 Gooding, Jeremy ...... 179 Gore, Jeff ...... 11 Grabau, Larry ...... 305 Grey, Timothy L...... 73, 170, 292 Grichar, W. James ...... 20, 265 Grier, Logan ...... 177 Griffith, Griff ...... 222 Grohs, R. D...... 37 Grove, Melvin ...... 275, 276 Gruszewski, Hope ...... 90 Guice, John ...... 200 Gumm, Dustin ...... 51 Gylling, Steven R...... 296

H

Hager, Aaron G...... 169 Hamouz, Pavel ...... 57 Hamouzova, Katerina ...... 57, 207 Hansen, Stephanie A...... 4 Haramoto, Erin ...... 195 Harden, John ...... 200 Harker, Kenneth N...... 260 Harlow, Christopher D...... 94, 252 Harre, Nick T...... 169 Havens, Patrick ...... 154 Havranek, Nikol ...... 232 Hayden, Thomas ...... 281 Haynie, Rebecca S...... 180 Hazelrigg, Ann ...... 209 Heap, Ian M...... 27, 58 Heaton, Brent S...... 7 Heider, Daniel ...... 240, 241 ...... Heilman, Mark A...... 182 Hennemann, Laura J...... 282 Herr, Amanda ...... 216 Hesterberg, Dean L...... 118

72 73 Hill, Erin C...... 60, 69 Hillger, David E...... 54, 154 Holloway, James C...... 167 Holmes, Ashley A...... 121 Hooker, David C...... 26 Horvath, David ...... 4, 161 Hu, Shuijin ...... 119 Huang, Yanbo ...... 141 Hunt, Barrie ...... 281 Hurley, Terrance ...... 224

I

Ilvento, Thomas W...... 75 Inman, Matt D...... 3, 142 Irmak, Suat ...... 257 Israel, Trevor D...... 149, 303

J

Jacobson, Brent ...... 281 Jain, Rakesh ...... 166, 280 Jasieniuk, Marie ...... 30 Jeffries, Matthew ...... 47, 245, 250, 266, 267 Jenkins, Daniel ...... 179 Jennings, Katie ...... 35, 55, 142, 234, 243 Jha, Prashant ...... 104, 110, 271 Jhala, Amit J...... 8, 18, 91, 146, 187, 257, 272 Jia, Qidong ...... 163 Jia, Yulin ...... 263 Jiang, Linjian ...... 294 Joel, Daniel ...... 88 Johnson, Charles ...... 39 Johnson, Dewayne ...... 3 Johnson, Quintin R...... 75 Johnson, William ...... 63, 131, 156, 173, 174 Jones, Jonathan ...... 211 Jordan, David L...... 3, 119, 142 Jugulam, Mithila ...... 187, 219, 220, 221, 286, 287 Jursik, Miroslav ...... 207 Jussaume, Raymond A...... 223

K

Kalavacharla, Venu ...... 105 Kaplan, Ian ...... 95, 199 Karn, Elizabeth ...... 30

74 75 Kaur, Simerjeet ...... 188 Kaur, Tarundeep ...... 188 Keeling, J. Wayne ...... 12, 64, 145 Keene, Clair L...... 5, 197 Keller, Ryan ...... 54, 154 Kendig, Andy ...... 281 Kerstetter, Randall ...... 218 Kikugawa, Hiroshi ...... 275, 276 Kim, Gunjune ...... 264 Kim, HaeWon ...... 284 Kleifeld, Yeshaayahu ...... 135, 192 Klein, Robert ...... 265 Knezevic, Stevan Z...... 257, 265 Knight, Alexandra M...... 119, 177, 274 Kniss, Andrew R...... 120, 171, 297 Kohl, Lisa ...... 160 Kohrt, Jon R...... 87 Kolarova, Michaela ...... 57 Konkle, Samantha N...... 59 Koo, Dal-Hoe ...... 220, 221 Koop, Anthony L...... 160 Kordbacheh, Farnaz ...... 68 Korres, Nicholas E...... 70, 253 Kosnarova, Pavlina ...... 207 Kruger, Greg R...... 2, 8, 65, 187 Krull, Mike ...... 281 Krutz, L. Jason ...... 265 Ksander, Tim ...... 281 Kumar, Vipan ...... 104, 110, 271 Kunkel, Daniel L...... 236

L

Laffey, John ...... 54, 154 Lambert-Beaudet, Camille ...... 210 Landry, Randall ...... 25, 28 Langston, Vernon B...... 204 Larose, Hailey ...... 88 Lassiter, Bridget ...... 55 Lassiter, Ralph ...... 54, 154, 204 Lati, Ran N...... 194 Latorre, Débora O...... 112 Latreille, Phil ...... 218 Lawrence, Nevin ...... 74 Lawton-Rauh, Amy L...... 137, 288 Leary, James ...... 179 Lee, Elizabeth ...... 191, 283, 284

74 75 Legleiter, Travis R...... 174 Leiva Soto, Andrea S...... 33 Leland, Shane ...... 271 Leon, Ramon G...... 130, 134, 189, 190, 193, 246 Li, Chunyan ...... 42, 44 Li, Xiao ...... 292 Li, Zhaohu ...... 294 Libbey, Carl R...... 233 Lim, Charlemagne A...... 271 Linder, Katie J...... 32 Lindquist, John ...... 16, 93, 187, 257, 272 Lingenfelter, Dwight ...... 300 Linquist, Bruce A...... 92 Lins, Ryan D...... 279, 280 Logan, Seth T...... 139 Long, Alex ...... 133 Lopez, Enrique ...... 66, 67 Louws, Frank ...... 35, 243 Loux, Mark M...... 2, 59, 85, 131, 173, 302 Lovelace, Michael L...... 145 Lowe, Christian T...... 202 Lucio, Felipe ...... 29 Lukens, Lewis ...... 191, 283, 284

M

Ma, Qinying ...... 45 MacDonald, Greg E...... 178 Macedo, Gabrielle C...... 72 Madsen, John D...... 185 Magidow, Lillian ...... 62, 282 Mahnken, Brooke ...... 179 Mahoney, Denis ...... 118, 267 Mallory-Smith, Carol A...... 80 Mankin, Luke ...... 200 Mann, Richard K...... 201 Manuchehri, Misha R...... 12, 20, 64, 145 Marchesi, Bruna ...... 72 Marois, James J...... 190 Maroli, Amith S...... 83, 165, 255 Marshall, Michael W...... 13, 15 Martin, James ...... 265 Martin, Linda ...... 1 Martini, Alfran T...... 9 Martini, Luiz F...... 9, 109, 111 Martins, Bianca A...... 80 Martins, Roberto L...... 93

76 77 Marx, David B...... 187 Mashhadi, Hamid R...... 68 Matos, Ana K...... 72 Matthews, Joseph L...... 139, 169 Matzrafi, Maor ...... 100 McCullough, Patrick ...... 50, 150 McCurdy, James D...... 49 McElroy, Scott ...... 249, 291 McKenzie-Gopsill, Andrew G...... 283 McNair, James N...... 181 Menéndez Calle, Julio ...... 123, 124, 128 Mennan, Husrev ...... 206 Merchant, Rand M...... 12, 20 Merotto Junior, Aldo ...... 24 Meszaros, Anna ...... 28 Miao, Chunping ...... 96 Milbrath, Lindsey R...... 53 Miller, Bec L...... 175 Miller, Brett R...... 167 Miller, Donnie ...... 265 Miller, Leah ...... 160 Miller, Michael ...... 203, 205 Miller, Timothy W...... 38, 233 Mills, Anthony ...... 23 Mirsky, Steven ...... 5, 197 Misra, Swayamdipta ...... 110 Mitchell, Paul D...... 277, 278 Mitchem, Wayne ...... 55 Mohler, Charles ...... 60, 68 Mohseni-Moghadam, Mohsen ...... 32, 33, 34, 106 Molin, William ...... 98, 99, 113, 114, 217 Monks, David W...... 35, 142, 234, 243 Morishita, Don W...... 43, 104 Morris, Matthew ...... 71 Morris, Scott H...... 53 Morris, T. Shay ...... 20, 64, 145 Mueller, Thomas C...... 149, 265, 269 Murphy, Guillermo P...... 261 Myung, Kyung ...... 202

N

Nagayama, Souichiro ...... 275, 276 Nandula, Vijay K. .83, 84, 98, 99, 105, 113, 114, 255, 291 Napier, Richard M...... 290 Navarro, Santiago ...... 222 Nawrocki, Justin J...... 182, 183

76 77 Neal, Joseph C...... 55, 94, 252 Netherland, Michael D...... 182 Neve, Paul ...... 254 Newton, Leslie ...... 160 Nichols, Adam ...... 247 Nichols, Robert L...... 301 Noldin, Jose A...... 109, 111 Norsworthy, Jason K...... 2, 70, 97, 131, 168, 173, 203, 205, 253, 254, 291, 301 Nurse, Robert E...... 26, 40, 77, 235, 259

O

O’Donovan, John T...... 260 O’Sullivan, John ...... 37 Odero, Dennis C...... 232 Omielan, Joe ...... 51 Ostrander, Elizabeth ...... 216 Ou, Ling ...... 118, 245 Owen, Micheal D...... 85, 227, 265 Owens, Daniel K...... 285

P

Padilla, Eduardo ...... 127 Page, Eric R...... 40, 77, 235, 259 Panneton, Bernard ...... 41 Paporisch, Amit ...... 103 Parks, Max ...... 276 Parks, Syndell ...... 181 Parrish, Jason T...... 85, 256 Parrish, Scott K...... 61, 157 Parry, Sarah ...... 127 Paterson, Andrew ...... 214 Pawlak, John ...... 140 Peachey, R E...... 129 Pedroso, Rafael M...... 108 Peleg, Zvi ...... 100 Peng, Yanhui ...... 163 Pereira, Andy ...... 289 Perry, Daniel H...... 204 Peterson, Dallas ...... 81, 219, 220, 221, 287 Peterson, Dan ...... 84 Peterson, Mark A...... 29 Peterson, Robert ...... 14 Phillippo, Colin J...... 237, 238 Phour, Manisha ...... 132

78 79 Picapietra, Gabriel ...... 6, 122 Pigati, Ray L...... 282 Pinson, Shannon ...... 263 Pivetta, Andrey ...... 9 Plakhine, Dina ...... 88 Podapati, Pavan ...... 52 Pokhrel, Saluna ...... 213 Polizzottoo, Matt L...... 118 Pollnac, Fredric W...... 147 Porter, Donald J...... 167 Powles, Stephen ...... 168 Pratchler, Jessica ...... 126 Prostko, Eric ...... 265 Prusinska, Justyna M...... 290

Q

Qu, Feng ...... 294

R

Rabaey, Thomas L...... 129 Rachmilevich, Shimon ...... 96, 117, 295 Rachuy, John S...... 239 Radeva, Galina ...... 281 Rajcan, Istvan ...... 261 Rana, Aman ...... 39, 155, 306 Rana, Neha ...... 222 Rana, Sandeep S...... 48, 251 Randall-Schadel, Betsy ...... 160 Ranjit, Jagat D...... 213 Reberg-Horton, S. C...... 119 Recker, Ross A...... 277, 278 Reddy, Gadi ...... 198 Reddy, Krishna N...... 31, 141 Reeb, Bryan ...... 302 Refsell, Dawn ...... 140 Reicks, Graig ...... 76 Renner, Karen A...... 60, 69 Reynolds, Daniel ...... 11, 23 Rhodes, Jr., G. N...... 149, 303 Riar, Dilpreet ...... 291 Richardson, Robert J...... 182, 183 Rimando, Agnes ...... 19 Rios, Sonia I...... 127 Rittmeyer, Richard ...... 240, 241 Ritz, Christian ...... 206

78 79 Rodriguez, Roberto ...... 179 Roozeboom, Kraig ...... 81 Rosenbaum, Kristin ...... 146 Rosinger, Chris H...... 270 Rouse, Christopher E...... 288 Rubin, Baruch ...... 100, 103, 212 Ryan, Matthew ...... 5, 197

S

Sadeque, Ahmed ...... 86 Salaiz, Tom ...... 43 Sammons, Doug ...... 58, 163, 216, 218, 222 Samples, Chase A...... 11, 23, 65 Samtani, Jayesh ...... 39 Sandell, Lowell ...... 2, 18, 93, 187 Sang, Yi ...... 163 Sarangi, Debalin ...... 91, 257 Saski, Christopher ...... 217 Satake, Yoshikazu ...... 275 Schaedler, Carlos E...... 109, 111 Schleier, Jerome ...... 154 Schmitzer, Paul R...... 201, 202, 290 Schmuke, Jon ...... 222 Schrage, Brandon W...... 15, 273 Schreiber, Fabio ...... 9 Schroeder, Jill ...... 106, 228 Schulte, Lindsey A...... 181 Schutte, Brian J...... 36, 258 Scott, Barbara ...... 69, 75 Scott, Robert ...... 265, 289, 291, 301 Self, Andrew B...... 152 Sellers, Brent A...... 178 Sexton, Frank ...... 269 Sezen, Uzay ...... 214 Shaw, David ...... 84, 226 Shirriff, Scott W...... 126 Shivrain, Vinod K...... 166 Showmaker, Kurt ...... 84 Shrestha, Anil ...... 78, 127, 213 Shropshire, Christy ...... 17 Sibony, Moshe ...... 212 Siebert, Jonathan ...... 54, 154 Sikkema, Peter H...... 17, 26, 82, 172 Silveira, Maria L...... 130 Simard, Marie-Josee ...... 41, 210 Simpson, David M...... 29

80 81 Sindhu, S. S...... 132 Singh, Samunder ...... 132, 186 Singh, Shilpa ...... 1, 289 Singh, Vijay ...... 1, 289 Sinha, Neelima ...... 138 Skibo, Andrew Z...... 151, 184 Smith, Daniel H...... 174 Smith, Kenneth L...... 254, 281, 301 Smith, Richard G...... 71, 147, 209 Snow, Allison A...... 85, 256 Soltani, Nader ...... 17, 26, 172 Soni, Neeta ...... 130 Soteres, John ...... 226 Soukup, Josef ...... 57, 207 Spandl, Eric P...... 282 Spayd, Sara E...... 234 Sprague, Christy ...... 10, 87, 265 Sridevi, Betha ...... 287 Steckel, Lawrence E...... 2, 131, 173, 265 Stephenson, Daniel ...... 25, 28, 265 Stewart, Neal ...... 163 Streibig, Jens C...... 171, 206, 297 Strek, Harry ...... 176 Swanton, Clarence J...... 191, 261, 283, 284 Swisher, Marilyn E...... 208

T

Tadmor, Yaakov ...... 88 Tao, Nengbing ...... 218 Tasker, Alan V...... 159 Taylor, Zachary ...... 177 Tehranchian, Parsa ...... 97, 291 Tenhumberg, Brigitte ...... 16 Tharayil, Nishanth ...... 83, 165, 255 Thomas, Walter E...... 143 Thompson, Curtis ...... 287 Thompson, Gary D...... 204 Thomson, Steven J...... 31 Thum, Ryan A...... 181 Tillman, Barry L...... 189 Tonks, Dennis J...... 275, 276 Tranel, Patrick ...... 79, 86, 136 Trewatha, Pamela B...... 304 Trezzi, Michelangelo M...... 123, 124, 125, 128 Tsukamoto, Masamitsu ...... 275, 276 Turnage, Gray ...... 185

80 81 U

Ulmasov, Tim ...... 218

V

Vail, Gordon D...... 166, 279, 280 Van Acker, R. C...... 37, 261 VanGessel, Mark J...... 5, 60, 69, 75, 151, 197 Vangilder, Andy M...... 301 Velini, Edivaldo D...... 72, 112 Venner, Katelyn A...... 248 Venturini, Eric ...... 209 Viator, Ryan P...... 204 Vincent, William J...... 22, 274

W

Wallace, John M...... 5, 197 Waller, John C...... 149 Walsh, Kimberly D...... 17, 26 Walsh, Michael ...... 168 Walton, Larry C...... 204 Wang, Dafu ...... 216, 222 Ward, Sarah M...... 218, 298 Warnock, Rachel L...... 90 Warren, Nicholas ...... 147, 209 Webster, Theodore M...... 73, 292 Weimer, Monte R...... 201, 204, 290 Werle, Rodrigo ...... 16, 93, 272 Westberg, Dan ...... 143 Westra, Philip ...... 61, 157, 218, 286 Westwood, James ...... 88, 89, 90, 264 White, Tony D...... 139 Wiecko, Greg ...... 198 Wilde, Susan B...... 180 Williams II, Martin M...... 129, 262 Willis, Ben ...... 184 Willis, John ...... 46 Wilson, Davie ...... 11 Wiltrout, Jake ...... 54 Wolfe, Joseph C...... 94, 252 Woolam, Brandi ...... 25, 28 Wortman, Sam E...... 121, 196 Wright, Alice A...... 84, 98, 99, 113, 114, 217 Wright, David L...... 190 Wright, Steve D...... 127

82 83 Wu, Chenxi ...... 79 Wuerffel, R. Joseph ...... 102 Wulfhorst, J.D...... 74

X

Xue, Guang ...... 42, 44 Yahyaa, Mosaab ...... 88 Yair, Yifat ...... 212 Ye, Rongjian ...... 163 Yerka, Melinda K...... 272 Yerkes, Carla N...... 201, 202 York, Alan C...... 142 Yost, Michael ...... 151 Youmans, Cletus ...... 200 Young, Bryan G...... 2, 102, 139, 169, 173 Young, Jullie M...... 139, 169

Z

Zandstra, Bernard H...... 237, 238 Zhang, Zhiqi (Jody) ...... 75 Zimmer, Marcelo ...... 109 Zimmer, Paulo D...... 109, 111 Zotarelli, Lincoln ...... 244

82 83 KEYWORD INDEX

Nodulation ...... 191 2,4-D ...... 27, 33, 139, 148

A

Abutilon theophrasti ...... 76, 195 ACCase resistance ...... 254 ...... 139 Acetolactate synthase (ALS) inhibitors ...... 79,80 Acetolactate synthase (ALS) resistance ...... 84, 254 Aeration ...... 248 Aeschynomene americana ...... 208 Agrostis stolonifera ...... 46, 48, 248 Allelopathy ...... 164, 263 Amaranthus palmeri ...... 25, 114, 131, 137, 166 Amaranthus powellii ...... 195 Amaranthus retroflexus ...... 114, 131 Amaranthus rudis ...... 79, 166 Amaranthus spinosus ...... 114 Amaranthus tuberculatus ...... 79, 114, 131, 139 Amaranthus viridus ...... 114 Ambrosia artemisiifolia ...... 105 Antagonism ...... 248 Anthemis cotula ...... 74 Apera spica-venti ...... 57 Application timing ...... 92 Application, aerial ...... 9 Application, methods ...... 252 Application, sequential ...... 252 Aquatic environment ...... 151, 183, 184, 185 Aquatic weed ...... 185 Arachis hypogaea ...... 20 Areas, natural ...... 53, 138, 158 Arundo donax ...... 211 Athletic fields ...... 94, 252 Atrazine ...... 79 Atrazine ...... 25, 108, 129, 195, 265

B

Barley ...... 260 Barnyardgrass ...... 254 Bearded Sprangletop ...... 101 Bentgrass, creeping ...... 46, 48, 248 Bermudagrass, turf ...... 46

84 85 Bioassay ...... 126 Biofuels ...... 158 Bioherbicide ...... 94, 252 Biological control ...... 94, 138, 199 Biological control agents ...... 95 Biology, weed ...... 138 Biotechnology ...... 138 Biotic stress ...... 261 Bispyribac-sodium ...... 109 Black swallowwort ...... 53 Bluegrass, Kentucky ...... 43, 46 Brassica napus ...... 260 Brassica oleracea ...... 195 Broccoli ...... 239 Bromoxynil ...... 108 Butomus umbellatus ...... 184, 185

C

Cabbage ...... 195 Calandrinia ciliata ...... 28 Callus ...... 90 Canola ...... 260 Cardamine flexuosa ...... 94 Carfentrazone-ethyl ...... 151, 184 Chenopodium album ...... 76, 195, 199 Chlorimuron-ethyl ...... 140 Cirsium arvense ...... 161 Climate ...... 74 ...... 133 Clover ...... 133, 148 Competition ...... 261, 262, 282,283 Conyza canadensis ...... 76, 163 Coring ...... 45 Corn ...... 5, 166, 265 Corn, glyphosate-resistant ...... 8 Corn, sweet ...... 195, 262 Cover crops ...... 122, 133, 199 Crops, minor ...... 194, 195, 236 Crotalaria spp...... 208 Cuphea viscosissima x lanceolata ...... 21 Cuscuta pentagona ...... 138, 264, 293 Cynodon dactylon ...... 46 Cyperus difformis ...... 108 Cyperus rotundus ...... 73, 291

84 85 D

Daucus carota ...... 239 Detergent industry ...... 21 Dicamba ...... 20, 27, 33, 139, 141, 285 Dichanthelium clandestinum ...... 251 Digitaria ischaemum ...... 46 Digitaria sanguinalis ...... 195 ...... 185 Diuron ...... 108 DNA profile ...... 158 DNA sequencing ...... 218 Dose-response ...... 101, 170, 171 Drift, spray ...... 20, 33, 141

E

Echinochloa colona ...... 6, 84 Echinochloa crus-galli ...... 263 Echinochloa oryzicola ...... 107 Echinochloa oryzoides ...... 206 Ecological Fitness ...... 79 Ecology, weed ...... 53, 92, 95, 195, 260 Education ...... 303 Emergence, weed ...... 6, 92, 131 Euphorbia esula ...... 161 Evolutionary genetics ...... 137 Exotic weed ...... 158 Extension ...... 225

F

Fairway, golf course ...... 94 Fallow ...... 175 Far Red ...... 191 Federal Regulations ...... 158 FeHEDTA ...... 252 Fescue, fine ...... 251 Fescue, tall ...... 46, 94, 252 Festuca arundinacea ...... 46, 94, 252 Festuca rubra ...... 251 Flumioxazin ...... 139, 140 Fluridone ...... 183, 185 Fomesafen ...... 34, 114, 133 Forest ...... 53, 158 Fragaria x ananassa ...... 208

86 87 G

Gene expression ...... 191 Genetic analysis ...... 137, 162, 262 Genetic diversity ...... 137 Genetically modified crops ...... 139 Genetics ...... 163 Genome ...... 285 Genome assembly ...... 218 Genomics ...... 137, 161, 163 Germination ...... 260 Glufosinate ...... 30, 78, 131, 293 Glycine max ...... 8, 33, 133, 139, 140, 141, 170, 282, 293 Glyphosate ...... 20, 30, 33, 73, 78, 79, 105, 137, 151, 161, 163, 165, 175 Glyphosate resistance ...... 106, 126, 137 Golf Course No-mow Areas ...... 251 Golf Course Rough ...... 251 Greens, golf ...... 48

H

Habitat gradient ...... 53 Habitats, disturbed ...... 138, 158 Habitats, natural ...... 158 Habitats, semi-natural ...... 53 Halosulfuron ...... 73, 291 Haustorium ...... 264 Herbicide carryover ...... 133, 239 Herbicide concentration ...... 170 Herbicide metabolism ...... 108, 109 Herbicide mode of action ...... 284 Herbicide resistance ...... 27, 30, 57, 58, 84, 101, 105, 108, 114, 126, 137, 165, 171, 175, 225, 284, 285 Herbicide tolerance ...... 21 Hordeum vulgare ...... 260 Hydrilla verticillata ...... 183

I

Imazamox ...... 84, 151 Imazapic ...... 9, 73 ...... 151 Imazethapyr ...... 9, 133 Imidazolinone herbicide ...... 80 Indica rice ...... 263 Indigofera hirsuta ...... 208

86 87 Integrated weed management ...... 129, 194, 195, 260 Internet ...... 57, 58, 303 Invasive species ...... 53, 158, 165, 185, 211 Ipomoea spp...... 165 Ipomoea hederacea ...... 25 IR-4 Project ...... 236 Irrigation management ...... 43 Isoflavonoids ...... 283

K

Kochia scoparia ...... 285

L

Lactofen ...... 114 Lamium amplexicaule ...... 94, 252 Landscapes ...... 252 Lemna minor ...... 184 Leptochloa fusca spp. fascicularis ...... 101 Lettuce ...... 239 Lolium multiflorum ...... 30, 74 Lycopersicon esculentum ...... 138

M

Management, alternative ...... 92, 194 MBI-005 ...... 94 Mechanical weed control ...... 131 Mesotrione ...... 46, 166 Metabolic resistance ...... 162 Metabolomics ...... 89, 165 Methiozolin ...... 248 Metribuzin ...... 108, 133, 170 Mississippi ...... 105, 114 Model validation ...... 254 Molecular biology ...... 285 Molecular evolution ...... 137 mRNA ...... 264

N

Natural products ...... 164 Neonicotinoids ...... 283 Nicosulfuron ...... 25 Nitrogen assimilation ...... 89 No-tillage ...... 131

88 89 Non-chemical weed control ...... 43 Non-crop ...... 53, 139, 175 Non-target ...... 163 Non-target site resistance ...... 162 Nutrient management ...... 43

O

Onion ...... 239 Orchards ...... 30 Organic agriculture ...... 5 Orobanche cernua ...... 88 Orobanche cumana ...... 88 Oryza sativa ...... 9, 92, 107, 108, 109, 137, 200, 263 Oxalis stricta ...... 94 Oxyfluorfen ...... 195

P

Pale swallowwort ...... 53 Palmer amaranth ...... 165 Parasite ...... 293 Parasitic weed ...... 88, 89, 90, 264 Parks ...... 94, 252 Parks, national ...... 158 Pea, dry ...... 260 Peanut ...... 20 Pendimethalin ...... 45 Pennisetum purpureum ...... 211 Performance ...... 53 Phelipanche aegyptiaca ...... 89, 90 Phenotypic plasticity ...... 261 Physiological ...... 282 Phytotoxicity ...... 170 Phytotoxins ...... 164 Pisum sativum ...... 260 Plantago lanceolata ...... 46 Plantago major ...... 46 Poa annua ...... 48, 248 Poa pratensis ...... 43, 46 Policy ...... 158 Polygonum cuspidatum ...... 151 Polygonum sachalinense ...... 151 Polygonum x bohemicum ...... 151 Population genetics ...... 137 PPO ...... 79 Preserves, forest ...... 53

88 89 Propanil ...... 108 Proteomics ...... 163 Pyraflufen ...... 78 Pyroxasulfone ...... 133, 140

Q

Quinclorac ...... 107 Quizalofop ...... 200

R

Radioactivity ...... 291 Radish ...... 133 Rangeland ...... 148, 161 Rates, reduced herbicide ...... 194 Relative cover ...... 122 Remote sensing ...... 141 Resistance fitness cost ...... 80 Resistance introgression ...... 80 Resistance management ...... 225 Resource conserving technologies ...... 225 Rice ...... 9, 92, 107, 108, 109, 137, 200, 206, 263 Right-of-way ...... 151 Rimsulfuron ...... 25 Riparian areas ...... 151 Roadsides ...... 175 Rye ...... 133 Ryegrass ...... 133

S s-metolachlor ...... 25, 131, 195 Saflufenacil ...... 78, 114 Scouting ...... 6 Seashore paspalum ...... 45 Seed germination ...... 88 Seed treatment ...... 283 Seedbank ...... 73, 131, 254 Seedling establishment ...... 53 Selectivity ...... 109 Sesamum indicum ...... 208 Shade ...... 53 Sociology ...... 223 Solanum lycopersicum ...... 32, 33, 34 Sonchus oleraceus ...... 175 Sorghum ...... 25, 282

90 91 Sorghum halepense ...... 25 Sorghum vulgare ...... 25 Soybean ...... 5, 33, 131, 139, 140, 141, 170, 191, 261, 293 Soybean, glufosinate-resistant ...... 170 Soybean, glyphosate-resistant ...... 8, 170 Specialty crop ...... 21 Spinach ...... 239 Spinacia oleracea ...... 239 Statistics ...... 296 Stellaria media ...... 94, 252 Sulfentrazone ...... 239 Sweet corn ...... 129 Synthetic ...... 27

T

Taraxacum officinale ...... 43, 94 Tembotrione ...... 46 Thaxtomin A ...... 94 Thifensulfuron-methyl ...... 32 Thlaspi arvense ...... 76 Tillage ...... 131 Tillage, reduced ...... 195 Tissue culture ...... 90 Tomato ...... 32, 33, 34, 138, 239 Topramezone ...... 46 Transcriptome ...... 88 Transcriptomics ...... 163 Transgenic ...... 293 Translocation ...... 264 ...... 151 Trifolium repens ...... 43, 46, 252 Trifolium spp...... 148 Triploid grass carp...... 183 Triticum aestivum ...... 28, 260 Tropical japonica rice ...... 263 Turfgrass ...... 43, 46, 94, 251, 252 Turfgrass management ...... 94, 252

V

Vegetable crops ...... 239 Vincetoxicum nigrum ...... 53 Vincetoxicum rossicum ...... 53 Vineyard ...... 30

90 91 W

Weed above ground biomass ...... 122 Weed biology ...... 53, 137, 210, 260 Weed competition ...... 282 Weed control systems ...... 251 Weed density ...... 194 Weed management ...... 94, 210, 252, 283 Weed mapping ...... 57 Weed suppression ...... 263 Wetlands ...... 25, 185 Wheat ...... 5, 28, 133, 260 Wolffia columbiana ...... 184

Z

Zea mays ...... 8, 133, 166, 195, 262, 265 Zone-till ...... 195 Zoysia japonica ...... 46 Zoysiagrass ...... 46

92 93 2013–2014 WSSA Board of Directors

President: Joe DiTomaso (2015), University of California, Davis, Robbins Hall, Davis, CA 95616

President-Elect: Dallas Peterson (2015), Kansas State Univ., 2014 Throckmorton Hall, Manhattan, KS 66506

Vice-President: Kevin Bradley (2015), University of Missouri, 201 Waters Hall, Columbia, MO 65211

Past-President: James Kells (2015), Michigan State Univ., 286 Plant and Soil Science Bldg., East Lansing, MI 48824

Secretary: Larry Steckel (2017), University of Tennessee, 605 Airways Blvd., Jackson, TN 38301

Treasurer: Ian Burke (2015), Washington State Univ., Dept. of Crop and Soil Sciences, Pullman, WA 99164

Director of Publications: Sarah Ward (2017), Colorado State Univ., Ft. Collins, CO 80523

Constitution and Operating Procedures: Peter Porpiglia, 4695 MacArthur Ct., Ste. 1250, Newport Beach, CA 92660

Member-at-Large: Les Glasgow (2015), Syngenta Crop Protection, 410 S. Swing Rd., Greensboro, NC 27409

Member-at-Large: Dan Kunkel (2016) Rutgers University, 500 College Rd. E., Princeton, NJ 08540

Member-at-Large: Andrew Kniss (2017) Univ. of Wyoming, 1000 E. University Ave., Laramie, WY 82071

Director of Science Policy: Lee Van Wychen, National and Regional Weed Science Societies, 5720 Glenmullen Pl., Alexandria, VA 22303

92 93 Graduate Student Representative: Kate Venner (2015) Virginia Tech, 435 Old Glade Rd., Blacksburg, VA 24061

Aquatic Plant Management Society: Cody Gray (2016) United Phosphorus Inc., 11417 Cranston Drive, Peyton, CO 80831

CWSS: Hugh Beckie (2016) Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N 0X2, Canada

NCWSS Representative: Mark Bernards (2015) Western Illinois University School of Agriculture, Knoblauch Hall 227, Macomb, IL 61455

NEWSS Representative: Prasanta Bhowmik (2017) University of Massachusetts, Stockbridge Hall, Amherst, MA 01003

SWSS Representative: Eric Palmer (2017) Syngenta Crop Protection, 410 Swing Rd., Greensboro, NC 27409

WSWS Representative: Pat Clay (2015) Valent, 7498 N Remington Ave., Fresno, CA 93711

Executive Secretary: Joyce Lancaster, Allen Press, Inc., 810 East 10th Street, Lawrence, KS 66044-7050

94 95 WSSA Founder Award 1974 - R.H. Beatty

WSSA Original Honorary Members*

1964 - A.S. Craft K.P. Buchholtz F.L. Timmons C.J. Willard 1966 - R.H. Beatty 1967 - W.S. Ball W.B. Ennis, Jr. 1968 - G.F. Warren 1969 - E.P. Sylvester ______* Society members being honored were originally referred to as Honorary Members. Beginning in 1970 the term was changed to WSSA Fellows and the term Honorary Member has since been reserved for honoring contributions to weed science regardless of WSSA membership status.

WSSA Fellows* 1970 - W.C. Shaw F.W. Slife 1971 - W.A. Harvey L.G. Holm D.D. Hemphill 1972 - B.E. Day W.H. Minshall 1973 - E.K. Alban W.R. Furtick R. Behrens G.C. Klingman 1974 - D.L. Klingman R.D. Sweet P.W. Santelmann L.L. Danielson 1975 - D.E. Davis J.R. Hay E.G. Rodgers R.P. Upchurch 1976 - A.P. Appleby R.D. Ilnicki D.E. Moreland

94 95 1977 - E.L. Knake C.G. McWhorter H.S. Friesen L. Southwick 1978 - O.H. Fletchall J.L. Hilton H.M. LeBaron D.W. Staniforth 1979 - H.P. Alley R.E. Frans K.C. Hamilton T.J. Sheets A.F. Wiese 1980 - J.D. Bandeen S.N. Fertig C.L. Foy L.S. Jordan R.A. Peters 1981 - J.F. Ahrens L.H. Hannah W.F. Meggitt R.R. Romanowski C.R. Swanson 1982 - J. Antognini G.H. Bayer J.H. Dawson C.L. Switzer R.B. Taylorson 1983 - R.N. Andersen W.D. Carpenter J.E. Gallagher D.L. Linscott L.W. Mitich 1984 - G.A. Buchanan W.A. Gentner M.M. Schrieber R.L. Zimdahl

96 97 1985 - S.R. McLane J.F. Miller W.J. Saidak E.E. Schweizer R.J. Smith, Jr. J.B. Weber 1986 - L.C. Burrill R.D. Comes R.A. Evans R.H. Schieferstein 1987 - F.M. Ashton J.W. Herron G.R. Miller M.G. Merkle J.D. Nalewaja W.H. Vanden Born 1988 - D.E. Bayer G.H. Friesen M.C. McGlamery J.A. Meade A.R. Putnam J.D. Riggleman 1989 - O.C. Burnside W.R. Mullison E.C. Spurrier G.R. Stephenson L.M. Wax A.D. Worsham 1990 - S.W. Bingham R.W. Bovey T.J. Monaco E.W. Stoller E.W. Stroube R.E. Talbert 1991 - R.M. Devlin T.L. Lavy M. Newton C.J. Scifres B. Truelove J.A. Young

96 97 1992 - R.J. Aldrich C.C. Dowler S.O. Duke C.G. Messersmith A.G. Ogg, Jr. J.V. Parochetti 1993 - R.E. Doersch C.L. Elmore R.E. Eplee J.O. Evans L.R. Oliver D. Penner W.V. Welker 1994 - J.R. Abernathy J.R. Baker J.F. Ellis R.E. Hoagland G. Kapusta W.A. Skroch 1995 - E.F. Eastin A.S. Hamill K.K. Hatzios H.D. Tripple H.J. von Amsberg H.P. Wilson 1996 - F.L. Baldwin W.L. Barrentine P.C. Bhowmik J.C. Graham F.D. Hess A.E. Smith, Jr. 1997 - H.D. Coble R.G. Harvey R. Prasad R.L. Rogers M. Singh W.W. Witt 1998 - J.L. Barrentine M.D. Devine A.G. Dexter

98 99 C. V. Eberlein S.D. Miller P.S. Zorner 1999 - I. Morrison D.S. Murray R.F. Norris H.D. Skipper D.C. Thill R.D. Wauchope 2000 - L.K. Binning N.D. Camper R. Charudattan J.S. Holt D.L. Shaner G.A. Wicks 2001 - C.E. Beste R.R. Hahn A. Legere A. Martin R.D. Williams G.Wills 2002 - R.E. Blackshaw J.M. Chandler J.D. Doll J.C. Hall D.R. Shaw S.C. Weller 2003 - S. A. Dewey R.M. Hayes R. Nishimoto A. Watson T. Whitson J. Wilcut 2004 - B.J. Brecke J.L. Griffin A.E. Miller M.K. Upadhyaya 2005 - D.D. Buhler J.E. McFarland M.D.K. Owen C. Swanton

98 99 2006 - M. Foley J. Kells R. Lym A. York 2007 - K. N. Harker R. Kremer B. Majek K. Vaughn 2008 - M.A. Locke R. Wilson C. Mallory-Smith 2009 - K. Renner M. Barrett A.R. Bonanno 2010 - J. Schroeder J. Dusky K. Reddy 2011 - J. DiTomaso D. Mortensen K. Al-Khatib 2012 - J. Derr J.J. Jachetta P. Stahlman 2013 - P. Banks F. Forcella J.M. Green 2014 - J.V. Anderson T.C. Mueller P.H. Sikkema

Honorary Members* 1974 - Hans Gysin 1975 - A. John Speziale 1976 - Keith C. Barrons 1978 - John D. Fryer 1979 - Menashe Horowitz 1980 - Virgil H. Freed 1981 - Les J. Mathews 1982 - Gideon D. Hill, Jr. 1983 - Shooichi Matsunaka 1985 - Abed R. Saghir

100 101 1986 - Beatriz L. Mercado 1987 - Yang-han Li 1988 - Werner Koch 1989 - Tetsuotakema Tsu 1990 - Agustin Mitidieri 1991 - Okezie Akobundu 1992 - Jonathan Gressel 1993 - Hwan Seung Ryang 1994 - Peter Böger 1995 - Keith Moody 1996 - Su Shao Quan 1997 - Stephen B. Powles 1998 - Jens C. Streibig 1999 - Jost Harr 2000 - Allan Walker 2001 - Baruch Rubin 2002 - Karl Hurle 2003 - Helmut Walter 2004 - Aldo Alves 2005 - Aurora M. Baltazar 2006 - Robinson A. Pitelli 2007 - Bernal Valverde 2008 - R. Labrada Romero 2009 - H. Matsumoto 2010 - None awarded 2011 - R. Cousens 2012 - C. Baskin J. Baskin 2013 - None awarded 2014 - P. Kudsk

WSSA Past Presidents

R.H. Beatty...... 1956 - 1957 W.B. Ennis, Jr...... 1957 - 1959 A.S. Crafts...... 1959 - 1960 K.C. Buchholtz...... 1960 - 1962 W.C. Shaw...... 1962 - 1964 G.F. Warren...... 1964 - 1966 W.R. Furtick...... 1966 - 1967 R. Behrens...... 1967 - 1968 B.E. Day...... 1968 - 1969

100 101 G.C. Klingman...... 1969 - 1970 L.L. Danielson...... 1970 - 1971 D.L. Klingman...... 1971 - 1972 R.P. Upchurch...... 1972 - 1973 E.G. Rodgers...... 1973 - 1974 E.L. Knake...... 1974 - 1975 C.R. Swanson...... 1975 - 1976 F.W. Slife...... 1976 - 1977 C.L. Foy...... 1977 - 1978 P.W. Santelmann...... 1978 - 1979 J.R. Hay...... 1979 - 1980 W.D. Carpenter...... 1980 - 1981 D.E. Davis...... 1981 - 1982 T.J. Sheets...... 1982 - 1983 C.G. McWhorter...... 1983 - 1984 J.D. Nalewaja...... 1984 - 1985 J.D. Riggleman...... 1985 - 1986 O.C. Burnside...... 1986 - 1987 J.H. Dawson...... 1987 - 1988 J.F. Ahrens...... 1988 - 1989 H.M. LeBaron...... 1989 - 1990 L.W. Mitich...... 1990 - 1991 J.R. Abernathy...... 1991 - 1992 J. Antognini...... 1992 - 1993 H.D. Coble...... 1993 - 1994 A.G. Ogg, Jr...... 1994 - 1995 J.L. Barrentine...... 1995 - 1996 S.O. Duke...... 1996 - 1997 C.G. Messersmith ...... 1997 - 1998 F.D. Hess...... 1998 - 1999 J.M. Chandler...... 1999 - 2000 L.R. Oliver...... 2000 - 2001 C. V. Eberlein...... 2001 - 2002 B.A. Majek...... 2002 - 2003 A.S. Hamill...... 2003 - 2004 D.C. Thill...... 2004 - 2005 C. Mallory-Smith...... 2005 - 2006 D. Shaner...... 2006 - 2007 J. Schroeder...... 2007 - 2008 J. Derr...... 2008 - 2009 D. Shaw...... 2009 - 2010 J. Jachetta...... 2010 - 2011 M. Barrett...... 2011 - 2012 R. Lym...... 2012 - 2013 J. Kells...... 2013 - 2014

102 103 NOTES

102 103 PERSONAL TIME SCHEDULE

Time Monday Tuesday Wednesday Thursday 7:30 8:00 8:15 8:30 Poster Poster 8:45 Session Session 9:00 9:15 9:30 9:45 10:00 10:15 10:30 10:45 11:00 11:15 11:30 11:45 Noon 1:00 1:15 1:30 1:45 2:00 2:15 2:30 2:45 3:00 3:15 3:30 3:45 4:00 4:15 4:30 General 4:45 Session 5:00 and Awards 5:15 Presentation Business 5:30 Meeting 5:45 6:00 6:15 6:30 6:45 WSSA Awardee 7:00 Reception 7:15 7:30 7:45 8:00 8:15 8:30 8:45

104 PB