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Volume • 64 No. 5 September • October 2002

Inside: OTF 2002 Conference & Show Schedule
See pages 8–9

Broadleaf Weed Control
See pages 18–22

OSU Department of Natural Resources
See pages 28–30

Don’t Miss an Inspirational Keynote Address by Archie Griffin.

September • October 2002

TurfNews distributes useful and timely advice, information and research from Ohio’s most knowledgeable experts and professionals to OTF members and those in the turfgrass industry. Vol. 64 • No. 5 • 2002 TurfNews is produced by the Ohio Turfgrass Foundation, PO Box 3388, Zanesville, Ohio 43702–3388, 1–888–OTF–3445 and is available to all members. www.OhioTurfgrass.org

America’s Premier Turfgrass Event

2002

OTF Calendar of Events 2002
OTF Annual Golf Tournament
October 3, 2002 City of Blue Ash Golf Course, Cincinnati, Ohio

Message From The 2002 OTF President . . . . . . . . . . . . . 3 Highlights: OTF Turfgrass Research Field Day . . . . . . . . . . . . . 4–5 OTF News and 2002 Conference & Show Program . . . . . 6–9 2002 Conference & Show Registration Form . . . . . . . . . . . . . . 11
Sports Turf Tips

Inside:

2002 OTF Conference & Show
December 9–12, 2002 Greater Columbus Convention Center, Columbus, Ohio

Related Events:
Ohio Compost Association 2002 Conference and Annual Meeting—Compost Utilization November 6, 2002 Fisher Auditorium/OARDC 1680 Madison Avenue Wooster, OH 44691 Karrie Imbrogno 440-989-1551 Ohio Lawn Care Association Annual Meeting/Breakfast December 11, 2002 Columbus Convention Center 800-510-5296 Ohio Sports Turf Managers Association Annual Meeting/Breakfast December 11, 2002 Columbus Convention Center 740-452-4541 For more information or to register for OTF events, please contact the OTF office at 888-683-3445 or visit www.OhioTurfgrass.org.
OTF TurfNews • Vol 64 • No. 5 • 2002 • Page 2

The Big 10? No...The Big 3! . . . . . . . . . . . . . . . 12–14 HortShorts. . . . . . . . . . . . . . . . . 16–17
New Growth and Technology

Broadleaf Weed Control . . . . . . . . 18–22 Member Spotlight . . . . . . . . . . . . . . 23
New Growth and Technology

Putting Green Root Zones. . . . . 24–27
Department Spotlight

School of Natural Resources . . . 28–30 OSPA Summer Field Day . . . . . . . . 31

Message From The President

“The world hates change, yet it is the only thing that has brought progress.”
Charles Kettering, American Inventor
The Motz Group’s new artificial turf system, 24/7 at Mariemont High School in Cincinnati.

Change Brings Progress
We are fortunate to be in an industry that is built upon equal parts science, aesthetics and innovation, and value the ideal that one of those factors cannot not exist without the other two. Achievement is often a result of our willingness to adapt to new findings, new customer demands and new techniques and tools. The number and diversity of innovations we have witnessed over time throughout the green industries have almost completely reinvented our profession, and certainly have affected every specialty area within it. An example that hits home for me is The Motz Group’s recent introduction of a rubber-infilled artificial turf for sports and recreation surfaces, that we have brand-named “24/7.” As a global provider of high performance natural turf systems, the decision to add unnatural surfaces to our product portfolio was made with some reticence (joining the enemy!) and only after careful evaluation of the competing technology and the potential market. In the end, however, adapting this new technology did not mean abandoning our core business. Rather the decision allowed us to exploit our position in the industry and further expand our sphere of opportunities. Henry Ford once said that: “Thinking always ahead, thinking always of trying to do more, brings a state of mind in which nothing is impossible. The moment one gets into the ‘expert’ state of mind a great number of things become impossible.” If you are finding yourself comfortably existing with the old “tried and true” methods and tools, remember that openness to new ideas and adaptation to new developments have enabled many turfgrass professionals to thrive. Stay plugged into OTF for the latest findings in the green industries. This December’s OTF Conference and Show will be your next perfect opportunity to see research in action and to discuss with your colleagues how they are applying new ideas to their businesses and profitably expanding their client base.

Mark Heinlein
2002 OTF President

OTF TurfNews • Vol 64 • No. 5 • 2002 • Page 3

475 Turf Professionals Turn Out for Turfgrass Research Field Day
beautiful, sunny day in the mid-eighties welcomed 475 turfgrass professionals for the 2002 Ohio State University/OTF Turfgrass Research Field Day, August 14 at the OTF Research & Education Facility. After welcoming comments from OTF President Mark Heinlein, Associate Chair of the OSU Department of Plant Pathology, Dr. Stephen Nameth, thanked everyone for supporting OSU’s Turf Program, making it one of the premiere programs in the country. Next, OSU Landscape Entomologist, Dr. David Shetlar, explained the day’s format and divided the group into Golf Course and Sports/Lawn/ Grounds tours. Each group then spent time visiting different research plots to learn about the latest research being conducted at OSU. Topics covered included:

A

• • • • • • • • • • • • • • •

Grub control update Foliar feeding OSU shade culture studies Moss control and wetting agents Postemergence annual grassy weed control Dollar spot fertility research Brown patch and dollar spot fungicide trials Dollar spot management on fairways/ research update Rust management on lawns and athletic fields Take-all patch, research update on detection and management Fertility research on Kentucky bluegrass and creeping bentgrass Turf water use in high sand content putting greens Effects of athletic field stabilizers on Kentucky bluegrass playing quality Use of Vermicompost as a turfgrass fertilizer Recycled products as root zones for sports turf

OTF TurfNews • Vol 64 • No. 5 • 2002 • Page 4

The OSU Turfgrass Science Team did an excellent job preparing this year’s program and turfgrass research facility. The team consists of members of the OSU Department of Plant Pathology, Entomology, School of Natural Resources, and Horticulture & Crop Science. Thank you to everyone who attended, and for those whose hard work helped make the Field Day a success. The 2003 Field Day is tentatively scheduled for August 13. For information, contact the OTF office at 888-683-3445 or visit the OTF website at www.OhioTurfgrass.org.

Vol 64 • No. 5 • 2002 • Page 5

OTF News
OTF Golf Tournament October 3–The City of Blue Ash Golf Course, Cincinnati
If you have not yet signed up for the annual golf tournament on October 3 at The City of Blue Ash—time is running out. The OTF Annual Golf Tournament is an important fundraising activity for OTF. Money raised from the tournament will help support turfgrass research and provide scholarships for students in Ohio’s turfgrass programs. All members are encouraged to play and/or sponsor. Participating in the golf tournament is a great way to reward your staff, thank your customers, or unwind from a challenging season. Several contests with lots of great prizes will be offered. A good time is guaranteed for all! Please note that this year’s golf tournament is on a Thursday—rather than the usual Monday. The goal is to accommodate OTF members who typically are unable to attend on Mondays. Registration information was mailed in August to all OTF members and was also included in membership packets. A registration form may also be found on the OTF website at www.OhioTurfgrass.org. Sign up now as space is limited to the first 144 golfers. Call 888-683-3445 for more information.

Call For Nominations
All OTF members will receive forms in the mail for nominating this year’s recipients of “Professional of the Year” and “Professional Excellence” awards. Nominees for “Professional of the Year” awards are judged on the following attributes: • Fellowship—willingness to share knowledge with and help train fellow turf personnel. • Inventive Ingenuity—leadership in developing new ideas and trends in turfgrass management. • Membership and activity in turf related and other civic organizations. • Length of dedicated service to the turf industry Professional Excellence awards are based upon similar criteria, and are awarded to those deserving special recognition for significant contributions to the turfgrass industry. Awards and scholarships will be presented at the Annual Awards Banquet, December 11, at the Ohio Turfgrass Conference & Show. Hank Chafin, one of OTF’s many distinguished Past Presidents, received the Professional of the Year Award in 2001. Professional Excellence Awards were presented to Dr. Karl Danneberger, OSU; and Robert Figurella, Superintendent, Brookside Country Club. Bob O’Brien of Century Equipment, and 1971 OTF President, was awarded an Honorary Lifetime Membership Award. Do you know anyone who deserves recognition for contributions to turf management? Watch your mail for details, or contact Kevin Thompson at 888-683-3445, ext. 3151, before October 14, to request a nomination form.

2002 OTF Scholarship Applications Accepted
OTF is committed to improving turfgrass through research and education. One of the best ways to foster this commitment is by providing scholarships to students pursuing green industry studies. In 2001, OTF and OTRT provided over $25,000 in scholarships. OTF members are asked to recommend any of their student employees, friends, or family who they feel would be qualified. An application was recently mailed to all OTF members. The deadline to apply for a scholarship is October 14. OTF scholarship information and applications are also available on the OTF website at www.OhioTurfgrass.org.

OTF TurfNews • Vol 64 • No. 5 • 2002 • Page 6

Hotel Accommodations
Planning on an overnight stay during the 2002 Ohio Turfgrass Conference & Show? If so, you’ll want to plan ahead and reserve your hotel rooms early. Many hotels will be sold out due to expected high attendance. Following is a list of hotels offering special rates for OTF participants. To make accommodations, please contact the hotel directly and mention that you are attending the Ohio Turfgrass Conference & Show. Hyatt Regency Columbus (Headquarters Hotel) 350 N High St Columbus OH 43215 614-463-1234 $112 + tax Single—Double $132 + tax Triple $142 + tax Quad Reservation cut-off date: November 18, 2002 Crowne Plaza Hotel 33 East Nationwide Blvd Columbus OH 43215 614-461-4100 $115 + tax Single—Double $125 + tax Triple $135 + tax Quad Reservation cut-off date: November 18, 2002 Red Roof Inn Columbus Downtown 111 Nationwide Blvd Columbus OH 43215 614-224-6539 $89 + tax Single—Quad Reservation cut-off date: November 25, 2002 Hampton Inn & Suites 501 North High St Columbus OH 43215 614-559-2000 $105 + tax Single $112 + tax Double—Quad Reservation cut-off date: November 11, 2002 (refer to Code OT2 when making reservations) Complete details of the 2002 Ohio Turfgrass Conference & Show, December 9–12, Columbus, OH will be mailed in October, and may be found on the OTF website at www.OhioTurfgrass.org.

OTRT Auction
The final plans for another great Ohio Turfgrass Conference and Show are being completed. Be sure to mark down Wednesday of the show for a fun filled night. The fun begins after the exhibits are closed and we learn who is the big winner of the Reverse Raffle. We expect the Reverse Raffle winning number to be worth a $1,000.00, or more. The Silent Auction is returning this year. You can place your bids all day and the winners will be announced during the festivities. Of course the big event is the Live Auction with an array of turf products, golf items, and sports memorabilia. The fun continues when we enjoy the fellowship and entertainment at the banquet. Don’t miss it. Every year more people and companies are contributing to the auctions. Getting items for the auction is becoming a year round project. Many of you are finding sellable items around your homes and work place and are keeping them for our auction. What do you have that will sell? Call Kevin Thompson, OTF Executive Director, and tell him what you are donating. If it’s small, bring it to the auction. Kevin can also help if you have a big item to donate and need help getting it to the auction. Or you can send a photo. What do you have that is a sellable item? Here are some of the items that have sold in the past -Tickets to OSU Football and Basketball games. Cleveland Indians and Cincinnati Reds tickets. Hockey and Soccer tickets. Concerts, golf outings, and fishing trips. Seed , fertilizer, sand, mowers, hand tools, and turf equipment. Turf control products. Autographs, pictures of golfers, ball players and other famous people. Books, old turf publications and antique items. Golf clothing, balls, and clubs. You name it and we can sell it. There will be a limited amount of Reverse Raffle tickets available so watch for the sellers as they walk down the aisles. Don’t forget to bring some extra bucks for the auctions. We will also take your check and credit cards. Donations to the auction are to the Ohio Turfgrass Research Trust, the tax-exempt, charitable, fund raising arm of the Ohio Turfgrass Foundation. Therefore, your donation may be 100% deductible as a charitable contribution. See you at the Show. Gene Probasco, Auction Chair

OTF TurfNews • Vol 64 • No. 5 • 2002 • Page 7

America’s Premier Turfgrass Event
December 9–12, 2002

2002

2002 Ohio Turfgrass Conference & Show Preview
Following is a brief listing of educational sessions to be offered this year:

Monday, December 9, 2002
GCSAA Workshop (WS-2) Tournament Preparation John Miller, Yankee Trace Jon Scott, Professional Golf Association Pesticide Technology Workshops (WS-1) Herbicides—Modes of Action & Use Strategies Dr. David Gardner, The Ohio State University Insecticides—Modes of Action & Use Strategies Dr. Chris Williamson, University of Wisconsin Fungicides—Modes of Action and Use Strategies Dr. Randy Kane, Chicago District Golf Basic Principles Workshop Basic Principles of Soil Testing & Development of Fertility Programs Dr. Tony Koski, Colorado State University Sports Turf Workshops (WS-4) Baseball Field Maintenance David Mellor, Boston Red Sox The Art & Science of Athletic Field Presentation David Mellor, Boston Red Sox Advanced Soil/Plant Testing Workshop (WS-3) Understanding Soil, Plant and Water Quality Testing Information Dr. Bob Carrow, The University of Georgia

Golf Foliar Feeding: Correlated Confusion Clarified Dr. Bob Carrow, The University of Georgia Bunker Preparation Jon Scott, Professional Golf Association Influence and Management of Organic Matter Dynamics on Creeping Bentgrass Greens Performance Dr. Bob Carrow, The University of Georgia Navigating the Internet Kregg Kish, Double Eagle Club Dollar Spot Management Panel Moderator: Dr. Karl Danneberger, The Ohio State University Bob Brame, USGA Green Section Dr. Randy Kane, Chicago District Golf Joe Rimelspach, The Ohio State University Superintendents Landscape Management Pesticide Runoff In The Urban Landscape Dr. Chris Williamson, University of Wisconsin Ecosystem Approaches to Pest Management Dr. Parwinder Grewal, The Ohio State University/OARDC Practical Approaches to Improving New and Existing Landscape Soils Joe Boggs, The Ohio State University Extension Common Sense Approaches to Reducing Costs in Landscape Management Jim Chatfield, The Ohio State University Extension Professional Lawn & Grounds Catch My Drift—I Hope Not! Kerry Richards, Penn State University The Friday Afternoon Spill Dr. Fred Whitford, Purdue University New and Existing Herbicides for Broadleaf Weed Control Dr. Fred Yelverton, North Carolina State University Practical Safety Tips to Protect Your Business Dr. Fred Whitford, Purdue University Sports Turf Installing and Managing a Modular System —What’s Different & What’s Not? Eric Adkins, Michigan State University

Tuesday, December 10, 2002
General Session Pesticide Exposure: Now You See It, Now You Don’t Kerry Richards, Penn State University General Session Keynote Presentation Archie Griffin, The Ohio State University

OTF TurfNews • Vol 64 • No. 5 • 2002 • Page 8

Crumb Rubber Topdressing Research & Sports Turf Research Review Dr. Trey Rogers, Michigan State University Enhancing the Stability of Sand-Based Rootzones and Defining Infill Systems Dr. Andy McNitt, Penn State University Sports Turf Maintenance—Work Smarter Not Harder Dr. Tony Koski, Colorado State University Emergency Repairs Panel Moderator: Phil Williams, The College of Wooster Eric Adkins, Michigan State University Tom Burns, Texas Rangers Darian Daily, Columbus Crew Stadium Dr. Tony Koski, Colorado State University Boyd Montgomery, Sylvania Recreation John Mott, The Ohio State University Pamela Sherratt, The Ohio State University

Preemergence and Postemergence Strategies for Annual Grassy Weed Control Dr. Fred Yelverton, North Carolina State University Potential Uses of Biostimulants in Agronomic Programs Marc Mayer, TruGreen Chemlawn Dr. Ben Hamza, TruGreen ChemLawn Alternatives to OP’s and Carbamates Dr. Chris Williamson, The University of Wisconsin Sports Turf Morning with the MLB/MLS/NFL Tom Burns, Texas Rangers Darian Daily, Columbus Crew Stadium Steve Wightman, QualComm Stadium Paul Zwaska, Beacon Ballfields Athletic Field Drainage—The Underlying Key to Success Dr. Andy McNitt, Penn State University Infield Dirt Maintenance Tom Burns, Texas Rangers Fertilization Strategies for Native Soil Fields Dr. Tony Koski, Colorado State University The Art & Science of Athletic Field Renovation Dr. Jim McAfee, Texas A & M University Mechanics Workshop Oils, Solvents, Fluids, Grease; Electrical Troubleshooting; Grinding; Equipment Replacement/Repair; Supplies and Where to Get Them

Wednesday, December 11, 2002
Golf Morning with the USGA Bob Brame, USGA Green Section Plant Growth Regulators for Annual Bluegrass Dr. Randy Kane, Chicago District Golf Prevention & Control of Moss on Greens Dr. Tony Koski, Colorado State University Innovative Management of Cutworms on Putting Greens Dr. Chris Williamson, University of Wisconsin Maximizing the Science for the Right Topdressing Program Development Dr. Andy McNitt, Penn State University Annual Bluegrass Control—Fact or Fiction Dr. Fred Yelverton, North Carolina State University Landscape Management The Latest Technology in Ornamental Insect Management Dan Herms, The Ohio State University/OARDC Termite Baiting Stations Dr. Susan Jones, The Ohio State University Making Wise Decisions in Ornamental Weed Management Dr. Hannah Mathers, The Ohio State University Over the Counter Products —What’s In The Bottle Dr. David Shetlar, The Ohio State University Lawn Care Business ODA Legislation Jim Betts, Betts & Associates, Inc. Finding, Training, and Keeping Good Employees Don Willig, International Management & Trade Consultants Software Update Dave Boulter, Real Green Systems Dick Deering, SNG Equipment Maris Frank, Practical Solutions What Is Your Company Worth? Ed Wantke, Wantke & Associates Selling Techniques Don Nichols, Yes Marketing, Inc. Professional Lawn & Grounds Turf & Grassy Weed ID and Control Dr. David Gardner, The Ohio State University Doug Hague, Lawn Classics Turf & Grassy Weed ID Contest! Dr. David Gardner, The Ohio State University Doug Hague, Lawn Classics

Thursday, December 12, 2002
Golf OSU Research Highlights—Correlated Confusion Clarified OSU Turf Team Leasing vs. Buying, Wetting Agents, Maintaining Natural Areas, and Turf Tips Moderator: Todd Voss, Double Eagle Club Bob Brame, USGA Green Section Dr. Karl Danneberger, The Ohio State University Frank Dobie, The Sharon Golf Club Ted Hunker, Tartan Fields Golf Club Joseph Kosoglov, Wolf Run Golf Club Dean Massmann, Jefferson Golf & Country Club Troy Murray, PFG Golf Landscape Management Aquatic Weed Management Jim Schmidt, Applied Biochemists Non-Crop Weed Control Randy Zondag, The Ohio State University Extension Perimeter Pest Control Dr. David Shetlar, The Ohio State University Professional Lawn & Grounds Non-Target Effects of Meridian Dr. David Shetlar, The Ohio State University Turfgrass Mathematics & Calibration Workshop Dr. Chuck Darrah, CLC Labs Debi Holdren, The Ohio State University Sports Turf Improved Soil Mixtures for Athletic Fields Dr. Chuck Darrah, CLC Labs Irrigation Equipment Alternatives, Budget and Performance System Enhancement Dr. Jim McAfee, Texas A & M University Turfgrass Selection for Athletic Fields —Agronomics Versus Reality Dr. David Gardner, The Ohio State University
Session topics, speakers, and dates are subject to change without notification.

OTF TurfNews • Vol 64 • No. 5 • 2002 • Page 9

2002 Ohio Turfgrass Conference and Sho

w

Advance Registration Form
This form must be received b y November 22,2002.Mail or fax to: PO Box 3388 • Zanesville OH USA 43702-3388 or Fax to:(740) 452-2552 Phone:(888) 683-3445

December 9-12, 2002 • Greater Columbus Convention Center 400 N High St., Columbus,Ohio Headquarters Hotel • Hyatt Regency Columbus • (614) 463-1234
Advance Registration: On-Site Registration: Group Rates:

1
Company Name Telephone

Registration must be received by mail or fax by November 22,2002 to receive the discounted advance rates. After November 22,2002 registration will be handled on-site. On-site fees will be an additional $10 per person. Three or more individuals from the same organization may register at one flat group rate (limit five;$25 each additional person).To take advantage of this option,all registrants must: 1) be employed by the same company;2) be current OTFmembers;3) pre-register using this form. All registrants must be registered at the same time. If registering more than five individuals from your organization,please list additional names on attached letterhead.

Company Information

(please print)

Member ID # City Fax State E-Mail ZIP+4
@
I understand Management reserves the right to contact me by the e-mail address above.

Street Address or PO Box

2 4
u Golf-G

OTF Membership
I am not cur rently a 2003 OTF member, but I wish to join: u Student-$10 u Individual-$80 u Organizational-$160 u Affiliate Organizational Member-$30 u Faculty-Complimentary Organizational members ONLY may receive member rates for employees. Amount Due $___________

3

Related Memberships

Members of the Ohio Lawn Care Association (OLCA), Ohio Sod Producers Association (OSPA), and Ohio Sports Turf Managers Association (OSTMA) receive the discounted OTF Registration rates. Yes,I am a member of: u OLCA u OSPA u OSTMA

Primary Business Categor
u Sod Producer-SP u Parks/Municipal-P
Pre Conference

y

(please check one only) u Lawn Care-L u Supplier-S

u Nursery/Landscape-N u Athletic Fields-AF

u Faculty/Student-F

u Other-O _________________________
Conference

5
1

Conference & Sho
P articipant Information – List Names

w

If registering for a Monday workshop, please use workshop code. *Students/Faculty must provide a copy of ID with registration. List name as you want it to appear on badge.

Monda y Workshops
Members $50 Non-Members $75
Workshop Code

Trade Sho w Onl y
FREE

1-Da y P ass
Members $60 Non-Members $80

2-Da y P ass
Members $110 Non-Members $130

3-Da y P ass
Members $150 Non-Members $170

Group P acka ge
1 day-$175 2 day-$320 3 day-$425

Student*/ Faculty*/ Spouse
No Charg e

Awards Banquet

$25

_______________

q 1-day q 2-day q 3-day q 1-day q 2-day q 3-day q 1-day q 2-day q 3-day q 1-day q 2-day q 3-day q 1-day q 2-day q 3-day

u Student u F aculty u Spouse u Student u Faculty u Spouse u Student u F aculty u Spouse u Student u F aculty u Spouse u Student u Faculty u Spouse

u Yes u No # Attending ____ u Yes u No # Attending ____ u Yes u No # Attending ____ u Yes u No # Attending ____ u Yes u No # Attending ____

(primary contact)

Workshop Code

2 3 4 5

_______________
Workshop Code

_______________
Workshop Code

_______________
Workshop Code

_______________

6

Method of Payment (payment due at time of order):

u Check u Cashier’s Check/Money Order u Amer. Express u Discover u MasterCard u VISA

(Make checks payable to Ohio Turfgrass Foundation)

$ TOT AL
u Check here if you will need special services. (Please enclose a letter with details of your needs.)

Credit Card # __________________________________________________________________________________ Exp. Date______________________________________Amt. to be charged $____________________________ Cardholder’s Name (Print)________________________________________________________________________ Authorized Signature ___________________________________________________________________________ A $25 fee will be charged for returned checks. All payments in U.S. funds drawn on U.S. banks.

Terms and Conditions
Refunds will be available by written request onl y. Any changes to registration or cancellations prior to the Show are subject to a $25 processing fee . 50% refunds will be available if received in writing b y November 6. After No vember 6,no refunds will be made . Payment is for admission to the Show and/or classes only. Refunds will not be issued based on perceived quality of the class or Event.I confirm that all information and credentials provided herein are true and accurate and I agree to all Show policies and regulations. I hereby release Ohio Turfgrass Conference and Show, Offinger Management Co.,sponsors,its officers,agents and employees from any and all liability, claims,lawsuits,damages,losses,costs,and expenses of any kind which arise out of or result from my attendance at the Ohio Turfgrass Conference and Show, whether or not foreseeable, including without limitation,personal injuries to me or my invitees. With my attendance at this Event,I realize that I and/or my products may be included in publicity photos. I hereby give my consent to the Event’s producers to use in future promotional materials any such photos and/or comments.

7

Signatur e

ONLY Event Code: A06202

FOR OFFICE USE

Date_______________________Amt________________________

___________________________________________________________________________Date _____________________________

Ck #______________________Ackd________________________

2002 OTF Trade Show Update
Every turf maintenance product and service imaginable will be on display at the trade show. This is a great chance to preview the latest the industry has to offer. New this year will be the “Innovation Station,” a new product display area that will allow exhibitors to feature recently released products, or products scheduled for release in 2003. The Innovation Station will be located in the registration area. To add your name to this impressive list of industry leaders, call OTF at 888-683-3445.

2002 OTF Exhibitor list
Following is a listing of companies already reserving exhibit space at the 2002 Ohio Turfgrass Conference & Show: (as of August 30, 2002)
Absolute Innovations Acorn Farms Advanced Turf Solutions Advanstar Landscape Group Ag-Renu Agro Chem, Inc. Allegheny Lawn & Golf Products Alvis Materials Americalist/Div. of Haines & Co. Anderson Instrument & Supply Co. The Andersons Applied Biochemists Aqua Aid Aquatrols Arkion Life Sciences AT Plastics, Inc. Aventis/Chipco Prof. Products BASF Corp. Barenbrug Bayco Golf, Inc. Bayer Corp. Becker Underwood, Inc. BioSafe Systems Brookside Labs C & S Turf Care Equip., Inc. Central Ohio GCSA Century Equipment The CISCO Companies Clark State Community College CLC LABS The Clear Solution Cleary Chemical Co. Club Car Commercial Tire Svc. Co., Inc. Compensation Consultants, Inc. Compost Facility - Com-Til Corbin’s Baled Pine Straw, Inc. Cub Cadet Commercial Davey Tree Farm Deep Roots Aerification Svc. Dixie Chopper Dow AgroSciences E.E. Johnson Eagle One Golf Products EarthWorks Easy Lawn Ohio Valley Eco-Logics EHOVE-Ghrist Adult Career Ctr. Engage Agro Corp. Equipment Specialists Fafard Fairmount Minerals (Best Sand) Finn Corp. First Products, Inc. Floratine Products Flowtronex PSI Foley United From Tee To Green, Ltd. Garick Corp. Glenmac, Inc. Golf Course News Golfweek’s Superintendent News/TurfNet Graham Lawn Equipment, Inc. Great Lakes Golf Green Media Green Mountain Int’l., Inc. Green Velvet Sod Farms Griffin L.L.C. Grigg Bros. Grounds Maintenance Magazine GTO Int’l. H & E Sod Nursery Haifa NutriTech, Inc. HARCO Fittings Heftee Industries Helena Chemical Co. HH & J Ents., Inc. Hotsy Equipment Howard Johnson Enterpises Huggett Sod Farm, Inc. Imants USA Irrigation & Green Industry IVI-Golf J. Davis Marking Systems Jacklin Seed JD Landscapes JRM, Inc. Joe Ferment Chevy KE of Tenn. (Kincaid Ents.) Knox Fertilizer Co. Kubota Tractor Corp. Lanphear Supply Larry Dismore Associates LASTEC Lavy Enterprises Lawn & Landscape Media Group Lebanon Turf Products Leemco Lesco, Inc. Mainline of North America Manderley Turfgrass Mar-Co Clay Products, Inc. Markers, Inc. Mid-Ohio Golf Car Milliken Turf Products Monsanto Morral Companies Naiad Co. National Mower/Turfco Nature Safe Neary Technologies Nu-Gro Technologies, Inc. Nutraganics Nutramax Laboratories, Inc. Oglebay Norton STS Ohio Earth Food, Inc. Ohio Lawn Care Association Ohio State University ATI Ohio Utilities Protection Serv. OSTMA Otterbine Barebo, Inc. Pace, Inc. Par Aide Products Co. PBI-Gordon Corp. Perfco Printing Perma-Green Supreme Pinhigh Compound Power Equipment Dist., Inc. Practical Solutions Precision Laboratories, Inc. Profile Products LLC Progressive Turf Equip., Inc. ProSol ProSource One PSB Co. Div. of White Castle R&R Products, Inc. R.W. Sidley, Inc. Raden Enterprises Real Green Systems Reel Turf Equipment Ltd. Reelcraft Industries Regal Chemical Co. Reliable Golf Course Supplies Riverdale/A Nufarm Co. River Valley Solutions Safety Storage, Inc. The Scotts Co. The Seed Center Seed Research of Oregon Seeds Ohio, LLC SGD Golf Shemin Nurseries, Inc. Signetics Simplot Partners Sipcam Agro USA SISCO SISIS, Inc. Smithco, Inc. Southern Green, Inc. Spectrum Technologies Spraying Devices, Inc. SQM North America Corp. Standard Golf Co. Steiner-Brouwer Turf Equip. Steinke Tractor Sales Stoney Creek, Inc. Strategic Turf Systems, Inc. Sustane Natural Fertilizer Syngenta Professional Products T-Sign Designs TAS Industries Textron TriState Turf Mgmt., Inc. Turbo Technologies, Inc. Turf Products Turfgrass Ty-Crop Mfg. Ltd. Tyler Enterprises Uncommon USA United Horticultural Supply Ventrac By Venture Products, Inc. Walker Supply, Inc. Watertronics, Inc. Weed Man Wheel Spray Wilcox Hotsy Equipment Co. Wolf Creek Co. Xenia Power Equipment

OTF TurfNews • Vol 64 • No. 5 • 2002 • Page 11

Sports Turf Tips

The Big 10? No...The Big 3!
Dr. John R. Street and Pamela J. Sherratt
The Ohio State University • Department of Horticulture & Crop Science It is increasing clear to the green team at OSU that athletic field managers throughout the state have very limited resources available to them to care for their fields. Our recommendations for the care of athletic fields are based upon scientific research findings that we like to pass on to the industry. We do, however, appreciate that many field managers do not have the budget or the manpower to do everything. With that in mind, we will focus on the big 3 that can make the most difference to the field’s performance in 2003...Coring, Late Season Fertilization (LSF), and Over-seeding. dressing. Cores can be removed by hand, by brush, or by core-harvester. Their removal gives the opportunity to ameliorate the rootzone with a more desirable material, such as sand. The logistical problems involved with their removal and the cost of an alternative material can be too much for some ground’s keepers budgets. The practical solution, where necessary, is to overseed, mix the cores with the seed, and drag-mat or brush them back in. Intensity of coring—Coring several times per year is a standard on most athletic fields. More heavily trafficked fields will usually require more frequent coring or more intense coring during a cultivation event. Multiple passes in several directions are usually required with each coring event to affect a meaningful amount of surface area. Table 1 provides the amount of surface area impacted by the tine size and tine spacing. A general rule is to produce no less than 12-15 core holes per square foot of turf. Where intensive coring is required due to heavy compaction or where coring will be used as the principle cultivation method for overseeding, 45-50 holes per square foot is a more desirable target (i.e. core holes at 2"x 2" centers) Cultivation equipment—There is still little reliable research data on the comparative performance of equipment designed to relieve compaction. It is clear

FALL CORING
When? A major window of opportunity for core cultivation is in the late fall after the playing season is over. Coring should be performed at least several times over the field (2-4) with passes of 6-8 times preferable for heavily trafficked, compacted fields and where the coring process will be the dominant cultivation technique for seedbed preparation. Core cultivation is best accomplished when the soil is relatively moist but not wet. Cultivation will cause additional compaction to wet soils. Core removal—The reincorporating of cores on the field is usually based on time and cost. Core return is a good idea on most fields since it becomes a form of top-

OTF TurfNews • Vol 64 • No. 5 • 2002 • Page 12

Table 1: Spacing and Tine Size Effect from Coring
Tine Size _inch 3/8 inch _inch _inch 1 inch 2X2 1.2 2.8 4.9 11.0 19.6 4X4 Spacing % 0.3 0.7 1.2 2.8 4.9 4X6 0.2 0.5 0.8 1.8 3.3 6X8 0.1 0.2 0.4 0.9 1.6

Values represent a percentage of total area covered.

that a solid or spiking tine is of little benefit to relieve compaction, although they do have a contributory effect on surface water infiltration and aeration. In essence, to relieve compaction the soil must be physically displaced to create fracturing so that the same mass of soil occupies a greater volume (e.g. verti-draining), or the soil must be removed so that a smaller mass of soil occupies the same field volume (e.g. hollow coring). The conventional method of hollow-core aeration at variable depths would still appear to be the groundskeeper’s favorite technique, but there has been an influx of equipment such as the verti-drain, pressure injection, deep drillers, and vibrating sub-soilers on the market in recent years. Heavy soils may benefit from deep cultivation with equipment that has a soil -shattering kick action, such as a verti-drain.

• • • • •

Better fall and winter color Earlier spring green-up Increased shoot density Improved fall, winter, and spring root growth Enhanced storage of energy reserves (carbohydrates) within the turf plant

LATE SEASON FERTILIZATION (LSF)
This type of fertility program involves the application of much of the season’s nitrogen during the late season months of September through December. It is important that LSF not be confused with dormant and/or winter fertilization. The latter method implies that fertilizer applications are made after the turf has lost most or all of its green color and is not actively growing. This differs notably from the late season concept, which requires that nitrogen be applied before the turf loses its green color in the late fall. LSF is popular because many of the agronomic and aesthetic advantages attributed to its use supposedly are not realized when spring and/or summer fertilization are practiced. Purported advantages of the late season concept include:

Timing—The timing of LSF should be made when vertical shoot growth has stopped, but the turf leaves are still green. Vertical shoot growth of cool season grasses will generally slow and stop at daily air temperatures of 40-45°F. A properly timed LSF will extend the “greening” time of the turf longer into the late fall and early winter without additional top growth. The green leaves remain photosynthetically active producing carbohydrates. This carbohydrate will be more efficiently used to support root, rhizome, and stolon growth during the late fall and winter period. LSF also assists in building food reserves for the following season. It is critical that the nitrogen be applied prior to dormancy for maximum efficiency of applied nitrogen. Poor timing is a common LSF mistake. Once the leaf tissue has turned brown, photosynthesis will no longer occur. Remember—“late-season” fertilization is not dormant fertilization. Fertilizer rate & type—In addition to timing, fertilizer rate and fertilizer type is critical to successful LSF. The most efficient nitrogen fertilizers for LSF are those independent of temperature for nitrogen release. Soil temperatures and microbial activity are low at this time of year, resulting in less efficiency from strong WIN methylene ureas, nat-

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ural organics, polymer-coated urea fertilizers and other temperature-dependant fertilizers. Urea, more water-soluble methylene ureas, IBDU, and SCU are less dependant on temperature for nitrogen release and, therefore, make excellent LSF nitrogen sources. Nitrogen rates should be in the range of 1 - 11/2 pounds of actual nitrogen per 1,000 square feet. Higher rates typically provide a better LSF response in the late fall and a better carryover response into late winter/early spring. For cool season grasses, nitrogen is the key nutrient for the LSF response with standard maintenance fertilizer ratios being acceptable. Proper rate and nitrogen source will result in significant carryover of nitrogen for early spring green-up the following season. The standard spring fertilization rate can typically be reduced to one half or less, or eliminated, thus avoiding a spring fertilization flush. Don’t couple LSF with traditional spring nitrogen fertilization rates. This defeats the purpose of the LSF strategy.

Some thoughts on seeding... • Little & often! Professional fields look so good because they throw seed at them all season long. Many field managers will apply seed prior to a game so that players will stomp the seed in to the soil. • Concentrate efforts on those parts of the field that have lost grass cover during the playing season. Seeding into an already populated, dense sward is not an efficient use of money. • Make a good quality seedbed by “roughing up” the soil surface prior to seeding • Seed in 2 directions to get maximum coverage, preferably from corner to corner (diagonally) • Key species in the Midwest are Kentucky bluegrass, perennial ryegrass, or tall fescue. Species selection should be based on budget, field quality, and time for establishment. • Consider using a mulch product (such as straw) to prevent soil erosion & keep moisture locked in. • Water consistently & with utmost care to achieve a seedbed that is moist but not wet. • The bottom line—seed will not germinate & establish without moisture. We hope that you have found STT informative. Our aim is to provide you with articles on athletic field related subjects. If you have any questions, or would like to suggest subject matter for future tips, please contact us:

OVERSEEDING
Late summer and early fall (15th August to 15th September) are the best times to seed so that the grass is well established before winter. During this time, soil moisture and temperature conditions are optimal for germination and establishment. There is also less competition from germinating weeds in the fall. Fall seeding will ensure turfgrasses are well rooted and more drought & heat tolerant the following summer. If time constraints mean that fall seeding is not possible, dormant seeding applications (late fall or early winter) can be made when soil temperatures are too low to allow grass seed to germinate. The seed will germinate in the spring when warm temperatures (50°F) return. The dormant seeding can be done at the end of the playing season and coupled with coring & LSF.

Dr. John R. Street [email protected] Pam J. Sherratt [email protected]

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America in Bloom
Pamela Sherratt & Alex Pearl
America in Bloom is modeled after Canada’s successful Communities in Bloom, which began eight years ago with just 29 cities and has grown to include several hundred competing provincially, nationally and internationally. AIB began on a small scale in 2001 when four U.S. cities were mentored by four Canadian winning cities. Judges appraise community efforts in eight categories, including turf and ground covers.

America in Bloom’s Objectives are:
1. To improve the visual appeal of America’s neighborhoods, parks, open spaces and streets through the imaginative use of flowers, plants and trees. 2. To encourage involvement and coordinated action by citizens of all ages, municipal governments, local organizations and businesses. 3. To emphasize environmental awareness and preservation of heritage and culture as key parts of the program. Turf & Ground Cover Category: This includes the efforts made by municipal, corporate (including all forms of local businesses) and private citizens. It includes the quality of naturalization, the use of ground covers and wild flowers, turf management (manicured to rough), maintenance (mowing height/frequency, Integrated Pest Management (IPM), fertilization programs, irrigation, water restrictions). Areas include private homes, public buildings, municipal and private sports fields and athletic parks. After only one full year in existence as a national beautification program, America in Bloom has attracted the attention of the horticultural industry. “This is truly the first initiative that everyone involved with horticultural related pursuits can participate in, from the smallest service person to the largest retailer”, says Ron Pierre, America in Bloom President. “It is national in scope yet the real impact comes from the local grassroots efforts.” This year professionally trained volunteers visited and evaluated 38 communities in 7 population categories. From the smallest of Lavona, GA (pop. 2,000) to the largest Chicago, IL (pop. 3,000,000). In their travels they witness the same community spirit that has made Canada’s program so successful. In speaking with participants, “I find a new found enthusiasm for their neighbors and the community they live in,” says Alex Pearl, AIB chief judge. “Municipalities, businesses and citizens are willing to pitch in. Little efforts go a long way to include so many people. America in Bloom, while in its infancy, is building pride through the use of plants.” Ohio was well represented by the following cities: Silverton, Amelia, Middlefield, Burton, Willoughby, Bay Village, Barbeton, Sandusky and Akron. This represented 4 of the 7 population categories. The results of this first edition will be revealed at the America in Bloom awards symposium, Oct. 10-12 in Reston, VA. In addition to the awards banquet, there will be educational seminars for public parks and grounds superintendents and community minded gardeners. For more information about America in Bloom and to find out how your community can become involved contact 614-487-1117 or visit www.americainbloom.org.

OTF TurfNews • Vol 64 • No. 5 • 2002 • Page 15

HortShorts
By Jim Chatfield Ohio State University Extension • Nursery Landscape and Turf Team

Horticulturist, Cleanse Thyself
F
rom The Lorax to Botanical Latin, books are part of the art and science of horticulture. Books are not the end-all and be-all, though they are of course literally made from plants. Naturally, there is more to learning than books. I will agree with the words of Shakespeare in As You Like It, that “These trees shall be my books.” I will agree with St. Bernard who in his 12th century Epistles said: “You will find something more in woods than in books. Trees and stones will teach you that which you can never learn from masters.” D. ...destroy the chlorophyll-bearing cells at the surface of the needle or scale of the conifer...This results in a flecking, stippling, or bleaching of the affected foliage...hot dry summer weather often causes a marked cessation in their activities.”

Answers:
“A” is the cottony maple scale, Pulvinaria innumer abilis. I used to think that this scale only occurred on maple species, but it was this insect book that first taught me otherwise. “B” is describing the over 800 species of gall insects that occur on oaks alone, ascribing to the infinite variety of nature. Few oak gall insects cause significant injury to the tree, though several that induce oaks to produce galls on stems are damaging, such as gouty oak gall and horned oak gall. Craig Rutt, who works with Ken Cochran at OSU’s Secrest Arboretum pointed out something fascinating to me the other day from a book titled “Fresh Cuts: Arrangements with Flowers, Leaves, Buds and Branches” (Edwina von Gal and John M. Hall). One of the pictures depicted the use of—oak galls in a decorative mode: as a cut stem. “C” is of course our friend, the gypsy moth. I had not known until researching this article that the everbusy Linnaeus first assigned the Latin binomial for this insect as he did for countless other animals and plants. “D” is a description of spider mites on conifers. Our most common foe in Ohio is the spruce spider mite, Oligonychus ununguis (try to say that real fast, even once), and as the quote above suggests, it and other mites are cool season spring-early summer and late summer-fall pests as opposed to other common mites such as the 2-spotted spider mites which instead breeds like crazy and causes most damage in hotter conditions.

Yet I cite these above quotes, after all, from books. Milton said: “In those vernal seasons of the year, when the air is calm and pleasant, it were an injury and sullenness against Nature not to go out, and see her riches, and partake in her rejoicing with heaven and earth.” He also said, “As good almost as kill a man as kill a good book: who kills a man kills a reasonable creature, God’s image; but he who destroys a good book kills reason itself....[Books} preserve as in a vial the purest efficacy and extrac tion of that living intellect that bred them....A good book is the pre cious lifeblood of a master spirit...” Finally, Milton said: “While there is much desire to learn, there of necessity will be much arguing, much writing, many opinions; for opinion in good men is but knowledge in the making.” So, without further ado—below are just three of my favorite books, highlighted with questions about their content. They are sure to whet your horticultural curiosity and to help make you a true practitioner of modern culture— horticulture, that is.

1. What insects are described below and what
book is being quoted? A. “One of the largest and most conspicuous of the many scale insects that attack ornamental trees in the United States...the favored host of this insect is maple...-but it also occurs on a wide variety...dogwood...beech...apple...Virginia creeper....sycamore... oak...rose...lilac...elm...by late spring the characteristic white egg sac of the female is evident...” B. “Wherever oaks occur, they are attacked by a group of small insects called gall makers. These insects cause deformities, known as galls, of various shapes, sizes, and coors on leaves, twigs, bark, flowers, buds, acorns, and even roots of the trees...The majority of gall makers that attack oak are wasps, but in some cases flies are responsible.” C. Lymantria dispar (Linnaeus)...Probably no pest of trees has received more publicity or cost more to control...

The name of this indispensable book (complete with thousands of pictures)?
Insects That Feed on Trees and Shrubs by Warren T. Johnson and Howard H. Lyon

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2. What book would have this kind of information?
A.The Usnea genus of lichens (the 79 species of beard lichens) produce usnic acid, used for herbal medicines throughout the world (though they can also be highly allergenic). Extracts are used in deodorants as antibacterials. Some species are used to produce dyes, some to brew beer. And animals put them to use as well, as a foodstuff by deer and as nesting material for certain western U.S. birds. B. Lichens, which are mutually beneficial dual organisms composed of certain fungi and species of either algae or cyanobacteria, also have their own set of pathogens that upon them prey. For example, the fungus Illosporium carneum is a common parasite of lichens such as Peltigera didactyla. C. The Latin binomial for a lichen is simply the name of the fungal symbiont in the dual organism. I had always wondered about this, since Latin binomials are assigned to each organism on Earth: from human beings (Homo sapiens) to red maples (Acer rubrum), from the apple scab fungus (Venturia inae qualis) to gypsy moths (Lymantria dispar). So—how could you have a two-part Latin name (binomial) for a dual organism? The protocol chosen—to simply use the name of the fungus is somewhat inelegant, in my view, and I shall probably not sleep tonight! D. A quote from W.F. Ganong: “...the lichens, gray, crisp, brittle, and crusted...deriving their food from certain kinds of small algae which they held enslaved in their meshes.” This is a great book—with absolutely stunning photographs—many more cool quotes including several from fellow lichen-lover Henry David Thoreau—and even a discussion of why people persist in thinking, falsely as far as anyone knows, that lichens damage plants. When trees decline and the trunk is opened up to more light the photosynthesizing alga or cyanopbacterium component of the lichen thrives with the added sunlight, thus the lichen thrives and people mistake this as a cause of the decline rather than an effect.

3. Where would you find this information?
A. “Poison Ivy is the best known and most widespread of a group of related species including Poison Oak and Poison Sumac, all containing...urushiol...All parts of the plant—roots, stems, flowers and fruits - are potentially irritating, and even the pollen, smoke from burning the plant, or clothing and tools coming in contact with the plant, can produce symptoms.” [Believe it or not, urushiol is also found in the fleshy arils surrounding ginkgo seeds and those who harvest and handle them sometimes break out in poison ivy-like rashes]. B. “All parts of Yews, except the fleshy red aril around the seed, contain significant amounts of taxine, a complex mixture of alkaloids absorbed rapidly by the human digestive system and acting on the heart.” [Ironically, many mistakenly think the fleshy red aril is the only poisonous part of yews, rather than the converse. It is still not a great idea to eat the arils, since they do have seeds (which are poisonous) inside. C. “Eating only a few berries [of mistletoe] may cause abdominal pain and diarrhea, but ingesting large quantities of the berries, or drinking tea made from the leaves, can produce severe irritation of the digestive tract, including vomiting, diarrhea, and acute cramping.” [Kind of unappetizing for such a romantic plant!] D. “Some lichens are quite toxic, due to the presence of usnic or vulpinic acid or other lichen substances...Wolf lichen...in Scandinavia, it was powdered, mixed with ground glass, and sprinkled on meat, as a wolf poison.” [Ouch!]

And the book is Lichens of North America, by Irwin W. Brodi, Sylvia Duran Sharnoff & Stephen Sharnoff.

Common Poisonous Plants and Mushrooms of North America—Nancy J. Turner and Adam F. Szczawinski.
To close, remember the words of the great Groucho Marx: “Outside of a dog, a book is a man’s best friend...inside of a dog it’s too hard to read.”

OTF TurfNews • Vol 64 • No. 5 • 2002 • Page 17

New Growth and Technology

Broadleaf Weed Control
Dr. David Gardner
The Ohio State University Department of Horticulture and Crop Science hile the chemistry used to control broadleaf weeds has not changed that much during the last ten years, several recent developments have affected control strategies. Whether you are a professional lawn care operator or a golf course superintendent it is a usually a necessary evil to perform some postemergence broadleaf weed control in the spring. Unfortunately, this has fostered the misconception that spring is the ideal time to control broadleaf weeds. Many of our most common and hardest to control broadleaf weeds are perennials. For several reasons it makes more agronomic sense to apply postemergence materials, such as 2,4-D and triclopyr, in the fall for the control of perennial weeds (Table 1). It is important to correctly identify the weeds on a site, and then consider whether they are predominately annuals or perennials. Identification of the weed and knowledge of its life cycle is necessary in order to best determine what control strategies to use. While fall applications of broadleaf herbicides will control annual broadleaf weeds, many of these may be effectively controlled using preemergence herbicide materials applied in the spring. Table 2 lists some of the most common annual broadleaf weeds, along with options for control with preemergence herbicides. Since these weeds are annuals, they are near the end of their life cycle now and control with a postemergence material may not be warranted. If there is heavy cover of these weeds it may be advantageous to control them now in order to allow the grass time to fill in the bare spots during the fall. Remember, though, that more effective control of these weeds in future seasons is either with preemergence herbicides, or, if necessary, postemergence materials applied early in the weed’s life cycle.

W

Table 3 lists the most common perennial broadleaf weeds. Though certainly not inclusive, the species listed easily account for 90% of the perennial broadleaf weed problems in Ohio turfgrass. Fall applied postemergence herbicides should be the first choice to control perennial broadleaf weeds.

Recent Developments in Broadleaf Herbicide Chemistry
Table 4 lists the herbicides available for postemergence control of broadleaf weeds. The table is split into different categories beginning with the herbicides individually and then listing the most common combination products. While you can buy some of the herbicides individually, control is most often accomplished with a three-way combination of the herbicides. 2,4-D, MCPA, and triclopyr are generally more effective on dandelions, while 2,4-DP, MCPP, and clopyralid are more effective on clovers. Dicamba is better for difficult broadleaves such as thistles. Usually a three-way herbicide will have 1 or 2 compounds from each grouping (e.g. 2,4-D, MCPP, and dicamba). New this year from PBI Gordon are broadleaf herbicide combinations with a herbicide called carfentrazone, which is reported to result in faster burn down of the targeted weeds. Carfentrazone acts to disrupt cell membranes, which results in rapid death of tissues and browning of the affected plant. Initial results indicate that while overall control with these products is no better than with other combination products, faster burn down of broadleaf weeds can be achieved. Two other products listed in Table 4 are not new to the market, but are labeled for control of certain

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broadleaf weeds. Quinclorac, the active ingredient in the crabgrass postemergent Drive, has shown good activity against dandelion and clover and is labeled for this use. The product is not the best choice for overall long-term control. However, in certain situations it may be a useful addition to your weed control program. If you are using Drive to control crabgrass postemergently during the summer you can also target the dandelions and you may get good suppression. But, be aware that an application of a three-way broadleaf herbicide in the fall will probably be necessary to achieve complete control. The other herbicide is chlorsulfuron. It has been on the market for many years primarily for the control of tall fescue in Kentucky bluegrass turf. However, it is labeled for the control of wild violets, chickweed, and purslane and several other weeds. Check the label for specifics, as this product is not to be used on tall fescue or ryegrass, and there are other restrictions.

Residential use of Clopyralid Discontinued
On July 26, 2002 Dow AgroSciences issued a press release to announce that they were discontinuing residential turf uses of clopyralid. Clopyralid has been on the market for about 15 years and is a very useful herbicide for the control of many lawn weeds, particularly the clovers. The concern with clopyralid is that low concentrations of residues can persist for considerable periods in composted turfgrass clippings. The concentrations found were in the part per billion range (1 ten millionth of 1%). While clopyralid is active on only a few plant families, one of them, Solanaceae, is particularly sensitive even to part per billion concentrations. Ironically, the solanaceae include such things as potato, tomato, and peppers. Sales of clopyralid were strongest in the Pacific northwest. This is also the part of the country that is most active with turfgrass

Table 1.
Summary of the advantages of fall applied postemergence herbicides. Herbicide translocation In the fall, the weed translocates carbohydrates into the taproot for winter. Fall applied broadleaf herbicides are much more effective because they are readily translocated into the root system, resulting in death of the root system as well as the leaf tissue Control in the fall is not only more effective, but also gives the turf time to fill in the bare spot without competition from crabgrass and other annual weeds. While postemergence broadleaf herbicides will not control crabgrass, often the best control of annual grasses is a dense stand of turf. In the fall, most annual ornamental plants and vegetables have reached maturity and leaves of trees and shrubs are beginning to turn color and fall off the plant, resulting in reduced risk of drift injury to these plants by herbicides. Henbit and common chickweed, are beginning to germinate in midto late-fall and can be effectively control if herbicide application is done after they germinate.
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Control in spring results in bare patches filled in by crabgrass

Less risk of damage to ornamentals

Winter annuals

clipping recycling programs. When the clippings were composted, most of the clopyralid residues break down. But, when the compost was used for vegetable gardening, the residues that remained caused damage to tomato and pepper crops. As a result the product is being discontinued on residential turf in order to address regulatory concerns. It can still be used on golf courses, and professional lawn care applicators will now be required to notify commercial property managers not to compost clippings. However, residential uses are now discontinued.

Addition of Pyridinoxies to 3-way Combinations and the Appearance of Combinations Without 2,4-D
For several years after their introduction, the pyridinoxy herbicides triclopyr and clopyralid were only available in Turflon II, which contained triclopyr and 2,4-D, and Confront, which contained triclopyr and clopyralid. However, In the last few years, several new products have been registered which contain tri-

Table 2.
If an area is heavily infested with annual broadleaf weeds, but not with perennial broadleaf weeds, then application of postemergence materials in the fall is not necessary since these weeds are nearing the end of their life cycle. It is better to control seeds of these weeds next spring using a preemergence herbicide or a postemergence material applied early in the weed’s life cycle. Species Prostrate Pigweed Amaranthus blitoides Prostrate Spurge Euphorbia supina Common Mallow Malva rotundifolia Black Medic Medicago lupulina Yellow Woodsorrel Oxalis stricta Prostrate Knotweed Polygonum aviculare Purslane Portulaca oleracea Henbit Lamium amplexicaule Common Chickweed Stellaria media prodiamine, dithiopyr, isoxaben, pendimethalin, ethofumesate prodiamine, bensulide, dithiopyr, isoxaben, pendimethalin dithiopyr, isoxaben, pendimethalin, ethofumesate, oxadiazon prodiamine, isoxaben dithiopyr, isoxaben, pendimethalin prodiamine, dithiopyr, isoxaben, pendimethalin, oxadiazon Preemergence Control Options bensulide, isoxaben, ethofumesate, oxadiazon

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clopyr or clopyralid in a three-way herbicide combination (Table 4). These new combinations offer increased choices and spectrums of weed control. Remember that the products containing clopyralid will no longer be available for residential lawn applications. In addition, several new combination products are now available without 2,4-D. MCPA has been around for many years and has a very similar mode of action and spectrum of control. It is, however, a little more expensive to manufacture. However, with some of the

environmental concerns that have been raised about 2,4-D, it has become necessary to register products that do not have 2,4-D in them. These products will generally work the same as 3-ways with 2,4-D and can therefore be used in areas where 2,4-D usage is no longer desired or permitted.

Some Final Notes Concerning Broadleaf Weed Control
It is very important to select the right herbicide and the most appropriate formulation in order to get the best possible control. Consult the label to determine whether the addition of a surfactant is warranted. Remember that many of the broadleaf herbicides are available as both amine and ester formulations. Dr. Street provides good discussion of amines versus esters in this past March-April issue of OTF news. Ester formulations are more effective than amine formulations, especially as temperatures decline. Esters, however, are more volatile and more care around ornamentals must be exercised with these materials when temperatures are above 60 degrees. Remember that postemergence herbicides are most effective if applied during sunny weather with no rainfall within 24 hours of application. How late these materials can be applied depends on weather conditions. In general, if the plant tissue is losing quality due to frost or cold temperatures, it is probably too late to get enough herbicide into the root system for effective control. However, depending on weather conditions, effective control with these materials can be achieved with applications as late as the second week of December. Herbicides applied in the very late fall have been observed to have what appears to be little effect two or three weeks after application. But, when the same areas are revisited in the spring, control can, in fact, approach 100%.

Table 3.
Perennial broadleaf weeds commonly found in turfgrass. Fall is the best time to apply herbicides, such as 2, 4-D, MCPP, or triclopyr, to control weeds. Species Mouse ear Chickweed Cerastium vulgatum Canada Thistle Cirsium arvense Ground Ivy Glecoma hederacea Buckhorn Plantain Plantago lanceolata Blackseed Plantain Plantago rugelii Curly Dock Rumex crispus Dandelion Taraxacum officinale White Clover Trifolium repens Wild Violet Viola papilionacea triclopyr MCPP, clopyralid, or dicamba 2,4-D or dicamba 2,4-D or dicamba 2,4-D, MCPP, dicamba 2,4-D, MCPP, dicamba 2,4-D, MCPP or other combination dicamba Most Effective Control MCPP or dicamba

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Table 4.
Herbicides labeled for the control of perennial broadleaf weeds commonly found in turfgrass. Perennial broadleaf weeds are most effectively controlled in the fall. Always consult the label prior to use. Herbicide Class Phenoxies Herbicide 2,4-D 2,4-DP MCPA MCPP Benzoic Acid Benzonitrile Pyridinoxies Dicamba Bromoxynil Triclopyr Clopyralid Quinclorac Sulfonylurea Triazoline Chlorsulfuron Carfentrazone — — Mecomec, MCPP-p 4 Amine Banvel Buctril Turflon Lontrel Drive Cosair — Example Product Dymec, Weedestroy AM-40 Amine Salt

Phenoxy and Dicamba Combinations 2,4-D, MCPP, Dicamba 2,4-D, 2,4-DP, Dicamba 2,4-D, 2,4-DP, MCPP 2,4-DP, MCPA, MCPP MCPA, MCPP, Dicamba Trimec Classic, Trimec Bentgrass, Trimec Turf Ester, Trimec 992, Trimec 899, Trimec LAF-687 Super Trimec, Mec Amine-BG Dissolve, Triamine, Triamine Jet-Spray Triamine II Trimec Encore, Tri-Power Selective Carfentrazone Combinations Carfentrazone, 2,4-D, MCPP, Dicamba SpeedZone Carfentrazone, MCPA, MCPP, Dicamba Powerzone Pyridinoxy Combinations 2,4-D and Triclopyr Triclopyr and Clopyralid 2,4-DP, MCPA, Clopyralid 2,4-D, Clopyralid, Dicamba MCPA, Triclopyr, Dicamba MCPA, Clopyralid, Dicamba Chaser Confront Chaser Ultra Millenium Ultra Cool Power, HorsePower TruPower

OTF TurfNews • Vol 64 • No. 5 • 2002 • Page 22

Member Spotlight
“My greatest professional satisfaction is seeing golfers enjoying themselves.”
Being superintendent of a golf course presents a wide variety of responsibilities and challenges: turf grass maintenance; soils; irrigation; budgeting; management and administrative responsibility. As Dan says, “You have to take care of everything that is living and breathing, plus a whole lot more.” It is the diversity of this work and the challenges that managing the largest office in the world brings, in which he finds a great deal of professional satisfaction. The biggest challenge is to get the work done without infringing upon the golfers. Dan attributes his ability to do this by recognizing his assistants and staff. He states, “That is what I am there for, to provide a service”. These are clear examples of his focus on people and a reflection of his very positive attitude. Dan speaks proudly of the Blue Ash organization and the people who support it. He has found the satisfaction of sharing his knowledge and experience with others not only by the education and guidance of his staff but also by leadership. He started by regularly attending the Ohio Turfgrass Foundation Annual conference. He became president of the local chapter of the Golf Course Superintendents Association of America, which led to being a member of OTF’s Education Planning Committee. Becoming a member of the board is a potential for the future. Being superintendent of Blue Ash, a community golf course of noteworthy recognition and over 38,000 players in a period of only nine months is a daunting responsibility. In his early years Dan quickly found himself immersed in his job. He was fortunate however to balance his life perspective and recognize the importance of putting your family first. He has been married to his wife Renee for nine years and has two children Christian and Courtney. Dan Walter has an outstandingly positive attitude. It differentiates him, permeates and contributes to his accomplishments. He loves his family and his job. At an early age, he has already attained the ultimate success in life.

Dan Walter, Superintendent, City of Blue Ash Golf Club

D

an Walter is a success. It’s not about money, title or power but about the ultimate satisfaction an individual attains when they have established a meaningful career and have extended themselves to give back to their profession and their community. It is also about balance; keeping ones family needs in perspective with the demands of ones career. Dan is the superintendent of Blue Ash Golf Course, just north of Cincinnati, Ohio. He joined the course as an assistant and became the superintendent in September 1995. Kidwell and Hurdzan designed Blue Ash in 1979, as one of the first community courses in Ohio. Known for its rolling terrain and undulating greens, it is recognized today as one of the top 75 public golf courses in America. For Dan, finding his career path wasn’t too difficult. The youngest of a family of five, Dan’s father was an avid golfer, playing on an average of twice a week. This inherent exposure to the game, coupled with some guidance by his high school counselor, resulted in the attainment of a degree in turfgrass management from the Ohio State University Agricultural and Technical Institute.

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New Growth and Technology
The Ohio State University

Putting Green Root Zones: The Science Behind the Systems
By Dr. Ed McCoy
The Ohio State University School of Natural Resources

Introduction

T

here is presently much confusion over what constitutes the ideal putting green root zone. Various experts and authorities have published guidelines for root zones, and practitioners are faced with the dilemma of deciding which recommendation is correct for their application. What I have found is that many different root zones will produce a quality putting green provided the root zone is properly married to its intended situation. An ideal rooting medium achieves the correct balance between capacities to a) transmit water and air, and to b) retain water and nutrients. Yet, for areas experiencing frequent foot and maintenance traffic, this medium should also c) resist compaction. The choice between emphasizing the transmission or retention capacities of a putting green root zone depends on the amount of play and player expectation, and the available resources for management input. Thus, for a facility with heavy play, high player expectations, and sufficient management resources, the tendency is to accentuate water and air transmission over the retention aspects of the root zone. This is because the required frequency of fertilizer and irrigation inputs is less worrisome than the chance the turf surface will be compromised by wear or weather. With less intense play and resources also less available then water and nutrient retention are often accentuated over the transmission aspects. Of course, if the facility faces heavy use, high expectations, but little resources for maintenance, then likely no root zone will prove satisfactory and expectations will never be met. Thus, since some traffic is always present, the ideal root zone should consist mostly of sand. It doesn’t really matter whether this high sand content root zone

resulted from an initial construction or from decades of sand topdressing on a push-up green, the effect is the same. The effect is the same a surface soil layer where most turf roots reside that contains an appreciable quantity of a specified sand. From there, ideal root zones may contain only a specified sand or contain sand amended with soil, organic materials, internally porous inorganic amendments, or any combination.

Properties Used to Describe Putting Green Root Zones
Central to a suitability assessment of a root zone is the particle size distribution. This describes the composition of the root zone and is a coarse scale measure of likely success or failure when used in a putting green. That is, if a root zone does not contain a suitable particle size distribution, then there is little chance that it could be successful for a putting green. At a finer scale are one or several soil physical property indices. These indices are used to judge whether the root zone accentuates either the transmission or retention capabilities. Soil property indices commonly related to water and air transmission are the saturated hydraulic conductivity (also called Ksat or permeability) and the non-capillary porosity. Indices related to water and nutrient retention are the capillary porosity and cation exchange capacity (CEC). Within the industry and during research on high traffic turfgrass root zones, the saturated hydraulic conductivity is the most commonly used index of the transmission properties of a root zone. It is a soil property whose concept is easy to grasp and is sensitive to subtle differences in root zone composition. Yet this same sensitivity results in difficulties in the precision of its measurement and repeated measurements of Ksat from a single stockpile may yield rather

OTF TurfNews • Vol 64 • No. 5 • 2002 • Page 24

large variation. Thus, although this is a very useful index, this property of a mix may often be abused by specifying too narrow of a range in values that must be achieved. Further, since water transmission and retention are often mutually exclusive concepts for a soil, we can often express the degree to which either is accentuated by the value of the saturated hydraulic conductivity alone. This is the approach I have adopted in this article.

The Range of Root Zones Found in Putting Greens
Putting greens are exposed to a variety of climates, must meet diverse performance expectations, and respond to differing levels of use and management input. Consequently, it is not surprising that root zones found in successful putting greens can exhibit a rather wide range of properties. It is important to note, however, that a root zone’s success also depends on its depth and properties of the underlying media. The range of particle sizes found in putting greens is given in the figure “Range of Particle Sizes in Putting Green Root Zones,” showing the cumulative percent passing (or retained) as a function of particle size. The arrows along the upper scale denote particle diameters corresponding to those for Fineness Modulus (FM) calculation. The range is from a root zone (labeled A) containing the finest sand fraction to the root zone (labeled B) containing the coarsest sand fraction. Root zone B also contains about 18% silt and clay so that the dashed line also shows only the sand fraction of root zone B. The range of acceptable particle sizes as shown in this figure is much wider than one would normally expect. If fact, both the published guidelines for USGA greens and California sand greens are contained within this range.

Specifically, root zone A is fine-medium sand having a FM equal to 1.0, a mid-particle diameter, or D50 value of 0.2 mm, and a D90/D10 uniformity coefficient of 2.5. The sand fraction of root zone B contains appreciable amounts of medium, coarse, and very coarse sand, has a FM equal to 2.6, a D50 value of 0.6 mm and a D90/D10 uniformity coefficient of 8. Again, root zone B contains about 82% sand, the remaining mineral fraction being silt and clay. This added quantity of silt and clay in root zone B results in an overall FM value of 2.1 and a D50 value of 0.5 mm. Root zone A consists as a pure or 100% sand medium and would not typically contain any of the commonly used amendments. On the other hand, root zone B would likely contain organic amendments totaling up to 5% organic matter by weight, in addition to the sizable silt and clay content. Root zones A and B represent endpoints with several general trends in soil composition and properties between these two points. These trends follow the ordering of from root zone A to root zone B where firstly and most obviously the sand fraction becomes increasingly coarser. Second, the sand fraction commonly becomes less uniform. Thirdly, there is an increasing content of silt and clay, introduced either as a component of the sand fraction or purposely introduced into the mix. Finally, in terms of root zone composition, there is a general trend of increasing organic matter content through amendment of the root zone with various organic materials. There is also a trend between root zones A and B regarding the manner whereby the root zone was formed. Though not always the case, root zone A would likely be formed during initial green construction. Root zone B, on the other hand, is commonly formed through years of core cultivation and sand topdressing applied to a native soil or push-up green; creating a high sand content root zone that also contains silt and clay from the native soil.

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Hydraulic Conductivity of Root Zones
These two diverse root zones, A and B, are also expected to exhibit very different hydraulic conductivity values. Although somewhat speculative due to the inherent variable nature of this index, root zone A would likely yield values ranging from 15 to 25 inh-1. The values for root zone B would range from 1 to 4 inh-1. Though the values for root zone A may appear large to some, they are actually rather moderate and not the largest that may occur. The values for root zone B, however, correspond with the lower limit for high traffic turfgrass areas. The general trend, from A to B, in Ksat values, is not nearly as direct as the trends observed in root zone composition. Starting from the range of 15 to 25 inh-1 for root zone A, saturated hydraulic conductivity values do not simply decline to the 1 to 4 inh-1 range observed for root zone B. Rather, as a uniform, clean (lacking silt and clay) and un-amended sand becomes more coarsely textured, the saturated conductivity increases owing to the larger diameters of inter-particle pores. This increase in hydraulic conductivity with larger particle size is show, starting from a particle diameter of 0.2 mm, in the figure “Generalized, Root Zone Hydraulic Conductivity.” Yet, the agronomic limit of increasing Ksat with progressively coarser textured sand is around 50 to 60 inh-1. This is particularly true for cool season turfgrass, where above this limit; a viable turf can only be established and retained with great difficulty. Essentially, above this point, the transmission attributes of the root zone are overemphasized, resulting in grossly insufficient retention of water and nutrients. Consequently, to maintain Ksat within a reasonable range and achieve a better balance between transmission and retention capability, properties of the root zone must change as mid-particle diameters exceed about 0.33 mm. As shown in the “Generalized, Root Zone Hydraulic Conductivity” figure by 1) increasing the proportion of silt and clay, 2) increasing the organic matter content, and 3) using a less uniform sand, each serves to lower the hydraulic conductivity. These are also the features of the trend in root zones from A to B that serve to maintain Ksat within a reasonable range as the sand texture becomes coarser.

Putting This into Perspective
Published guidelines for a California green root zone generally recommend the use of pure sand having D50 values ranging from 0.2 to 0.3 mm. As we have shown, these uniform, unamended, fine to medium sands have Ksat values from 20 to about 50 inh-1 and correspondingly fall within and acceptable, agronomic limit. Thus, even though the balance is tilted toward the transmission attribute of the root zone, a quality green is clearly achievable. On the other hand, a uniform and clean sand having a D50 value greater than 0.33 mm is expected to exceed the agronomic limit for Ksat of 50 to 60 inh-1. What we are looking at here is predominately medium sand. Interestingly, this D50 value is near the lower limit of the particle size range for a USGA green. Consequently, when we think of a USGA root zone we often think of something other than pure, clean sand. Whereas amending of the sand is not necessarily dictated by the USGA, it appears necessary from an agronomic point of view since medium to coarse sands may also need to contain some silt and clay or organic matter to maintain a reasonable permeability. There seems to be here, more of a balance between transmission and retention capability. Push-up greens that have evolved from decades of core cultivation and sand topdressing commonly have a shallow, sandy root zone with higher contents of silt, clay and organic matter. If the topdressing sand was on the fine side of our range, then I would be concerned about these root zones having insufficient transmission capability (mostly for air). Yet if the topdressing sand was on the coarser side of our range; again these greens should serve quite well. It is easy to see, however, that in these root zones, the water and nutrient retention capability is emphasized. From the above interpretation, it is clear that the most popular, successful and long-lived green root zones are not unrelated and isolated systems. Rather, they all fall within an encompassing umbrella where the goals of 1) adequate water and air transmission, 2) adequate nutrient and water retention, and 3) and compaction resistance are met.

OTF TurfNews • Vol 64 • No. 5 • 2002 • Page 26

OTF TurfNews • Vol 64 • No. 5 • 2002 • Page 27

New Growth and Technology

School of Natural Resources Turfgrass Soils Research Program
Dr. Ed McCoy
The Ohio State University School of Natural Resources

Mission
To explore regions under the turf where no man has gone before. In cooperation with agronomists, plant pathologists, and entomologists, apply the disciplines of soil physics and chemistry to contribute to more sustainable, high quality turf management systems. The SNR crew stresses an integrated approach to turfgrass management, starting with the drainage system, continuing to the root zone area, and then on up to the plant, while not forgetting the importance of cultural practices.

OTF TurfNews • Vol 64 • No. 5 • 2002 • Page 28

Faculty/Staff
Ed McCoy, Associate Professor, School of Natural Resources, OARDC, Williams Hall, Wooster Billie J. Lindsay, Research Associate, School of Natural Resources, Kottman Hall, Columbus Stephen M. Schneider, Research Associate, School of Natural Resources, Kottman Hall, Columbus

Ed McCoy
Ed is a classically trained soil physicist who may be more comfortable with equations than shovels, but has spent some time on either end of both. Over the past decade or so, he has focused his research program on turfgrass soils for high traffic areas. Through this study he has come to fully appreciate the unique and wonderful properties of sand. But more than this, he has come to realize that the essential functioning of soils for high traffic areas depends on the interactions between the root zone, the layering of soil materials, the drainage system and how the whole fit into the landscape. This is one message he tries to convey in the turfgrass soils course he teaches at OSU. He has conducted research on manufactured soils, the role of organic and inorganic amendments in high sand content root zone, the hydrology of modern putting green designs, putting green turf water use, and trenchless drainage system installation for putting greens. His products from this research range from trade journal articles (hopefully understandable by all) to technical articles (likely understandable by only a few academic types). He has also patented innovative drainage technology.

Billie J. Lindsay
Research Associate, MSc., Environmental Science, School of Natural Resources Billie feels like she has come full circle in her professional career with her return to the OSU Turf Research Facility. Billie remembers putting out fungicide field trials during a hot summer in 1977, while working as an undergraduate for Dr. Phil Larsen, Plant Pathology Dept. This was back when the rhizotron at the OSU Turf Research Facility was new and Billie was young. Since that time, she has worked on research projects in the Agronomy Dept. and now the School of Natural Resources in the area of beneficial reuse of byproducts and effects on soil properties. This summer, along with the SNR crew, Billie has focused on the installation of a sports turf root zone project. The feasibility of using recycled foundry sand and other byproducts in sports turf root zones will be explored. Billie is looking forward to working with the OSU Turfgrass Interdisciplinary Team to evaluate the nine different treatments in the root zone project. She is also working on a proposal with Drs. Gardener, McCoy, and Street to look at various top dressing blends using mineral and organic materials.

Dave sponsors the Annual Grub Dig, an event where industry representatives come to learn how their products perform.

OTF TurfNews • Vol 64 • No. 5 • 2002 • Page 29

Stephen M. Schneider
Steve graduated in 2001 with a B. S. in Natural Resources with a major Forestry. He got interested in turf research after his internship in the Dept. of Plant Pathology in the summer 2001. Dr. Mike Boehm and Joe Rimelspach sparked his interest in turf through their constant willingness to teach and answer any questions. He started working with Billie Lindsay in April 2002. This year he and his undergraduate student workers installed the project to test different substances as root zones for sports fields. This turned out to be quite a complicated installation to accommodate a 1% sloped subgrade, two root zone depths of six and 12 inches, subsurface and surface drainage, irrigation, and nine treatments randomly replicated three times. The study includes different recycled soils. Steve would like to do further research with recycled soils and strip mine reclamation for agricultural products.

Students

Thomas Christensen
Thomas grew up in Worthington, Ohio and is currently a student at The Ohio State University. Presently at the Ohio Turfgrass Foundation Research and Education Center he is part of the team that is working on the sports turf root zone project. Thomas’s father, James is currently employed with The Ohio State University as an assistant professor in the School of Natural Resources teaching applied statistics. Thomas’s sister, Catie, is currently a fifth year physical therapy major at the University of Minnesota and plans on going to graduate school after her fifth year. Thomas’s mother, Char, is the activity director at First Community Village in Columbus. Following his work on the sports turf root zone project, Thomas hopes to continue his education in acturarial science at The Ohio State University and hopes to one day become an investment banker for a major Wall Street firm.

George Cooke
George is a sophomore at Ohio State majoring in Landscape Horticulture. George grew up in Chillicothe, Ohio. He is currently assisting Billie Lindsay and Steve Schneider with the Sports Turf Root Zone project. George has enjoyed the experience of working on this project this summer and being part of the OSU Turf Research team. After graduation, George would like to work for a company that manages greenhouses or perhaps manage his own.

OTF TurfNews • Vol 64 • No. 5 • 2002 • Page 30

The Ohio Sod Producers Annual Field Day
Caterpillar tractor pulling a Dutzi ground preparation tool.

A new automatic self-stacking har vester by Trebro was on display.

Mike Ward, 2002 OSPA President, presents a plaque while thanking 2001 President Daniel Huggett for his dedication to Ohio’s sod industry. Lots of equipment was on hand, including this Magnum Harvester.

Attendees tried their hand with a Navigator forklift.

Eastgate Sod, Batavia, OH 3. 100 degree temperatures welcomed more hosted the Ohio Sod Producers Association annual Field Day on August
than 75 attending sod producers and participating suppliers of sod production services, equipment and supplies. After a brief meeting of the OSPA membership, at which the new relationship with the Ohio Turfgrass Foundation was explained by OSPA President Mike Ward, the group enjoyed a delicious lunch catered by the famous Montgomery Inn Ribs. The afternoon program allowed everyone the opportunity to view and demo some of the latest sod production equipment while touring the Eastgate Sod farm. A special thanks goes out to the following suppliers for exhibiting their products and equipment at the Field Day. • Bucyrus Equipment • The Cisco Companies • Harr’s Forklift Service • Kongskilde Ltd. • Steiner-Brower • Cargotec, Inc. • George F. Ackerman Co. • J & K Sod Blades • Dutzi North America • Trebro Mfg.

Brower Equipment’s Ian True answers questions from many interested producers.

OTF TurfNews • Vol 64 • No. 5 • 2002 • Page 31

PRESRT STD U.S. POSTAGE PAID COLUMBUS, OH PERMIT #7780

PO Box 3388 Zanesville, OH 43702–3388 888–OTF–3445 Fax (740) 452–2552

OTF Board of Trustees
Trustees Term Expires 2003 Dr. Chuck Darrah CLC LABS Mark Grunkemeyer Buckeye Ecocare Mark Jordan Westfield Companies Country Club Trustees Term Expires 2004 Boyd Montgomery Sylvania Recreation Lin Ropp UHS Todd Voss Double Eagle Golf Club Trustees Term Expires 2005 Glen Pottenger Larch Tree Golf Course

2002 OTF Officers
President Mark Heinlein The Motz Group Vice President John Mowat Century Equipment Treasurer George Furrer Lesco, Inc. Immediate Past President Len Dunaway Xenia Power Equipment Director of Education Dr. John R. Street The Ohio State University Executive Director Kevin Thompson OTF/Offinger Management Co.

OSU Turfgrass Science Team
Dr. Michael J. Boehm The Ohio State University Dept. Plant Pathology Dr. Karl Danneberger The Ohio State University Dept. Hort. & Crop Science Mr. Michael Fulton The Ohio State University Agricultural Technical Institute Dr. David Gardner The Ohio State University Dept. Hort. & Crop Science Dr. Parwinder Grewal OARDC/OSU Dept. Entomology Dr. Ed McCoy OARDC School of Natural Resources Mr. Joseph W. Rimelspach (Chairman) The Ohio State University Dept. Plant Pathology Ms. Pamela Sherratt The Ohio State University Dept. Hort. & Crop Science Dr. Dave Shetlar The Ohio State University Dept. Entomology Dr. John R. Street The Ohio State University Dept. Hort. & Crop Science Dr. Daniel Voltz The Ohio State University Agricultural Technical Institute Mr. David A. Willoughby The Ohio State University Agricultural Technical Institute

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