2009jan-febnewsletter

TurfNews Volume 71 • No. 1 January – February 2009

T H E N E W S L ET T E R O F T H E O H I O T U R F G R A S S F O U N D AT I O N

42nd Annual Ohio Turfgrass Conference & Show Continuing the Tradition of Success!

INSIDE: Industry NEWS (8) • BROADLEAF WEED CONTROL IN SPRING (16)

TurfNews

T H E N E W S L ET T E R O F T H E O H I O T U R F G R A S S F O U N D AT I O N

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. 71 • No. 1 January – February 2009 TurfNews is produced by the Ohio Turfgrass Foundation 1100-H Brandywine Blvd, Zanesville, Ohio 43701-7303 1-888-OTF-3445 and is available to all members www.OhioTurfgrass.org Back issues of OTF TurfNews are available on our website at www.OhioTurfgrass.org.

- - Proven Soluti

The purpose of the Ohio Turfgrass Foundation is to promote the turfgrass industry in Ohio, to encourage the further research and education in turfgrass science and to speak on matters of policy affecting the turfgrass industry – all of which provide better turf for everyone.

This Issue Sponsored By: ®

Inside Message from the OTF President . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Trade Show Wrap-Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Green Industry News. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Ohio State Golf Turf Spring Tee-Off . . . . . . . . . . . . . . . . . . . . . . . 14

Graduate Student Corner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

New Growth & Technology #1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

New Growth & Technology #2 . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

09 Calendar OF Events Ohio State Golf Turf Spring Tee-off (OTF) February 18 formulation – 19, 2009 of myclobutanil Water-based The Lane, Columbus thatHoliday is easyInntoOnuse and measure 888-683-3445

Exce contr

Controls 19 turf-destroying diseases including OSUspot, SPORTS TURF patch, SHORT COURSE dollar brown summer patch, February 18 – 19, 2009 anthracnose and spring dead spot Holiday Inn On The Lane, Columbus 888-683-3445 Provides preventative and curative

Effective on common Ohio Turfgrass Weekgolf course turf species May 22 – 28, 2009 including bentgrass, bluegrass and ryegrass Effective on numerous Northeast Ohio Lawn ornamental Care Seminarplant (OLCA)species

for even broader spectrum control

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June 18, 2009 Provides long-term disease prevention OARDC/OSU, Wooster 800-510-5296 Tank mix Eagle 20EW with Fore® specialty

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OTF/OSU Turfgrass Research Field Day (OTF) August 12, 2009 OTF Research & Education Center, Columbus 888-683-3445

Will c grass to lab

Non-s

Low o

May b

Can b a bro

Dow AgroSciences Professional Turf, Ornamental and Technical Prod Ohio Lawn Care Outdoor Summer Seminar (OLCA) herbicides and fungicides to professionals in the golf course, lawn ca August 13, 2009 BWC Payment Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 For more on any turf andColumbus ornamental products, contact yo OTF information Research & Education Center, 800-510-5296

Working Safely . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Corporate Sponsor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 2

Ohio Turfgrass Conference & Show December 7 – 10, 2009 Marney Dorsey Greater Columbus Convention Center, Columbus 888-683-3445 Dow AgroSciences

Turf & Ornamental Sales Office 614-356-1703

MESSAGE FROM THE PRESIDENT

You can be assured that the board of directors is doing their best to ensure that the funds that we have are being used as prudently as possible, and we will continue to use forward and proactive thinking in the years to come to ensure that we remain stable during these difficult economic times. While the conference and show is one of the best regional conferences, if not the best conference in the country, we are constantly looking for attendee and vendor feedback so the show can evolve into the best it can be each year. From time to time

Hello, I would like to start off by thanking our 2008 OTF President,

you will see changes in the show and rest assured that we have

Todd Voss, and all the board members for their time, effort, and vision

researched and have thoroughly gone over all options before

they have put into the Ohio Turfgrass Foundation not only this year,

making any changes. We hope that you agree with us that these

but the past several years in which a number of them have served

changes are always for the best, and will help keep OTF on the

on the board. In particular, I would like to recognize Mark Jordan and

cutting edge of the Turfgrass Conference and Shows.

Mark Grunkemeyer, who are leaving the board after many years of service. They both have done a tremendous job in several areas of

Shortly, you will be seeing the release of the Economic Impact

OTF and we are a better place because of all of their efforts.

Survey that the Ohio Turfgrass Foundation funded through the 2008 season. This was a large undertaking, and without allied

I would like to thank all of those who attended the conference and

chapters and other organization’s support, we would be unable to

show this past year. We had an increase in attendees from the

put this Economic Impact Study together. Please take time to read

previous year and we hope this trend continues, even with these

and pass this along to your employers so they understand what a

difficult economic times. You can be assured that OTF is cognizant

commitment this industry has to the state of Ohio and the overall

of these economic challenges and will give you the best education

agricultural development.

and show for your value. While we are not as large as other National Conferences and Shows, we can guarantee you our education and

Finally, I would like to recognize some of the individuals that have

overall trade show is well worth the investment and time.

helped me progress in the turfgrass industry since my graduation from OSU/ATI in 1987. These past Superintendents who I have worked for

I would like to thank you the members, vendors and the companies

include; Dennis Krueger (Briarwood G.C.), Bill Risch (Groveport C.C.),

that support and sponsor several of our events. Without all of you,

Greg Goedde (Moundbuilders C.C.), and Charlie Engster (Blue Ash

OTF would not be possible.

G.C.). Each of these individuals helped in different facets of my career and gave me the tools, resources and understanding of OTF and how

I want to thank the Ohio State University and in particular, the OSU Turf

important it is to support the Green Industry.

Team. These individuals give us a great deal of time and effort, and provide several of the seminars and educational tracks throughout

I would also like to thank my current employer, The City of Blue Ash,

the season. Additionally, thanks to Matt Williams and the individuals

for their commitment and support during the past several years as an

who run the Research Facility. Finally, special thanks to our Director

OTF board member and this current year as OTF President.

of Education, Dr. John Street and Executive Director, Kevin Thompson of Offinger Management.

Good luck as we head into the spring and summer months.

As you are all aware, 2008 has been headlined by the economy, or

Dan Walter, 2009 OTF President

the lack of. I am certain every agency, company, or institution that you manage or are involved with has been affected in some way, and OTF has been part of the same economic downturn as everyone. 3

2008

42ND OTF CONFERENCE & SHOW Experiences Growth in Attendance

4

The 2008 Ohio Turfgrass Conference & Trade Show was THE Place to be for Turf and Landscape Professionals OTF recently announced a 10% increase in attendance figures at the 2008 Ohio Turfgrass Conference & Show over the 2007 event. The 42nd annual event was held December 8 – 11 in Columbus with nearly 2400 turfgrass professionals in attendance. They were treated to over 120 hours of educational sessions and a trade show featuring over 350 booths from nearly 200 leading turfgrass suppliers. The Ohio Turfgrass Research Trust (OTRT) raised more than $17,000 at its auction thanks to all the vendors and members who donated time, products and generosity. The Live Auction continues to raise funds to support scholarships and research funding for OTRT. During a brief program before this year’s keynote speech, OTF awarded $22,000 in student scholarships and $72,000 in research grants to the OSU Turfgrass Science Program. OTF Annual Awards were also presented as Steve Jurick, Miami Valley Golf Association, received the prestigious 2008 OTF Professional of the Year Award Also, Rick Tyler, Blackhawk Golf Club received a 2008 OTF Professional Excellence Award for his commitment to Ohio’s turfgrass industry. Congratulations Steve and Rick, and to all the 2008 student scholarship recipients. Following the awards presentations, world-renowned turfgrass scientist and lecturer, Dr. Al Turgeon, Penn State University, gave this year’s Keynote Speech – “Implications of Global Warming: Cultural Relief and Future Management Strategies”.

National Golf Course Owners Association; Jim Singerling, CEO, Club Managers Association; and Keynote Speaker Joe Steranka, CEO, PGA of America. Allied organizations, including the Ohio Lawn Care Association, Ohio Sports Turf Managers Association, and Ohio Sod Producers Association held their annual meetings in conjunction with the conference and show. The collaborative relationship among these allied industry groups, along with the Ohio Chapters of the GCSA, help make Ohio’s turfgrass industry what it is. Many thanks to the trade show committee of Joe Enciso (chair), Chad Allen, Don Botkin, Mike Dietrich, Bill Easterday, Mark Jordan, Alan Mark, Scott Robinson, Ted Shackleford and John Street. The Program Development Committee earned high praise for developing a great educational program giving turf professionals the opportunity to learn the latest in turfgrass management practices while earning valuable CEU credits. The Program committee is chaired by Dr. John Street, co-chairs Doug Gallant, Kim Kellogg and Todd Voss, and committee members Bob Becker, Kyle Frederick, Dr. Dave Gardner, Deb Holdren, Pam Sherratt, Dr. Dave Shetlar, Don Sutton, Micke Takach and Joe Rimelspach. Thanks to all committee volunteers for its guidance and organization of this great event! The plans are already underway for the 2009 Ohio Turfgrass Conference & Show. Mark your calendars now for December 7 – 10 in Columbus. Please contact OTF with ideas or suggestions on how we can continue to make this the best turfgrass event in the country. You can reach OTF at 888-683-3445 or [email protected].

An exciting addition to this year’s conference was the 3rd Annual Ohio Golf Summit, hosted by Play Golf Ohio. Highlights of the summit included a review of Play Golf Ohio’s Economic Impact study, discussion on enhancing the working relationship between golf’s allied associations and facilities in Ohio, the sharing of ideas for positively impacting the game of golf in Ohio, and multiple presentations by golf’s industry leaders, including Steve Mona, CEO, World Golf Foundation; Mark Woodward, CEO, Golf Course Superintendents Association of America; Charlie Birney, President,

PGA of America CEO, Joe Steranka, gives the keynote at the Ohio Golf Summit.

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GREEN INDUSTRY

NEWS Live Auction Generates More than $17,000 The Live Auction held at the 2008 Ohio Turfgrass Conference & Show raised more than $17,000 for turfgrass research and scholarships. The funds generated by the auction support the Ohio Turfgrass Research Trust (OTRT), the charitable fund-raising arm of OTF. The auction was held in the convention center following the close of the trade show on Wednesday, December 10. Several hundred people gathered to view and bid on the many great items donated by OTF members and exhibitors. In addition to the Live Auction was the Reverse Raffle. OTRT and OTF volunteers sold raffle tickets at $20 each throughout the first 2 days of the show. Winners were selected to receive cash prizes, along with a Grand Prize winner of $1000. Several great items were sold at bargain prices at the auction, including autographed sports memorabilia, rounds of golf at many of Ohio’s exclusive golf courses, a night with the Cincinnati Reds Grounds Crew, a John Deere mini-gator, turf equipment, supplies and more. Two sets of tickets to the Fiesta Bowl generated more than $2200! The goal is to continue growing the auction so that more than $20,000 is raised by the 2009 auction committee, which will be working hard throughout the year soliciting donations from OTF members and suppliers. A special thanks to committee chair Joe Enciso, Todd & Heidi Voss, and Don Lawrence for helping organize and run the auction and reverse raffle. On behalf of the Ohio Turfgrass Foundation and the 6

Ohio Turfgrass Research Trust, thanks to everyone who participated and especially to the donors (see page 7) of this year’s auction. They proved that raising funds for turfgrass research can be fun!

2008 Auction Donors Chris Reinke

Helena Chemical Co.

ADS, Inc.

Deb Holdren

Advan LLC

Hooters

Amega Science

Hurdzan/Fry G.C. Design

The Anderson’s

Keen Mill, Inc.

Barley’s Brewing Company

Liquid Fence Co.

BASF

Markers, Inc.

BauerVoss Consulating

Medina Sod Farms, Inc.

Best Sand

Mid Ohio Electric

Brio

The Motz Group

Brookside Labs

Muirfield Village Golf Club

Buca di Beppo

Napa

Buffalo Wild Wings Century Equipment

O’Shaughnessy’s Public House

Cheeseburger in Paradise

Ohio Turfgrass Foundation

from Ohio Turfgrass Research Trust President Dr. Chuck

Cheesecake Factory

Olen Corporation

Darrah. The check represented $72,000 in research

Cincinnati Reds

Olive Garden

grants and financial support for the operations of the

Claddagh Irish Pub

Pinnacle Golf Club

OTF Research & Education Facility, and $19,000 in

Columbus Blue Jackets Foundation

Polaris Grill

student scholarships. Additional scholarships were awarded to students from other schools in Ohio with

Columbus Turf

Professional Pump & Irrigation Service

Dr. Karl Danneberger

RattleSnake Ridge G.C.

Deep Wood Restaurant

Reynolds Golf & Turf

Double Eagle

Rusty Bucket

Drury Hotels – Columbus Convention Center

Scioto CC Scotts Pro Seed

Experience Columbus

Skyline Chili

FMC

Dr. John Street

GCSAA Giammarcos Italian Restaurant

Syngenta Professional Products

Gold Canyon Candles

SYSCO

The Golf Club

The Toro Co.

Grasshopper Property Maintenance

TurfNet Media Network

Greater Columbus Convention Center

Westfield Group Country Club

Green Velvet Sod Farms

Wolf Creek Co.

The Hair Co.

Wood Bay Turf Technologies

OTF Presents Check for $91,000 to OSU Dr. Bobby Moser, Dean, College of Food, Agriculture and Environmental Sciences, The Ohio State University, accepted OTF’s 2008 check in the amount of $91,000

turf and landscape programs. OTF has donated nearly $4.0 million to turfgrass research and over $450,000 in student scholarships since 1964.

Westerville Sears

Hampton Inn & Suites Downtown Columbus

7

Professional of the Year Awarded to Steve Jurick

Professional Excellence Awarded to Rick Tyler

Steve Jurick (right) accepts his award from John Miller.

Rick Tyler at the Blackhawk Golf Club.

Steve Jurick became the first full time Miami Valley Golf Association

During the OTF awards and scholarships presentation, Rick Tyler,

staff member in October of 1997. At that time the MVGA was in its

Blackhawk Golf Club was recognized for his contributions to Ohio’s

infancy, just beginning to provide services to the area clubs and

turfgrass industry with a 2008 OTF Professional Excellence award.

players. Over the next two seasons the number of clubs offering GHIN

Unfortunately, Rick was unable to attend the awards presentation.

swelled from 8 to 55. The tournament program increased from 8

Brother Kip, accepted the award on Rick’s behalf.

tournaments to 26. Rick attended OSU majoring in agronomy, specializing in turfgrass Before joining the MVGA, Steve developed a strong background

management. While at OSU he interned at Overlook Golf Club in

in golf course management. He served as Head Professional at

Clearwater, Florida and Beacon Woods Country Club in Newport

Glenview Golf Course from 1995-1997 and Woodland and Dunham

Richey, Florida. Rick served as Central Ohio GCSA golf chairman for

Golf Courses from 1990-1995. Prior to his Head Professional Duties,

two years and two additional years as director.

he spent time as an Assistant Professional at Spring Lake Golf Club on the New Jersey Coast and at Manatee Cove Golf Club on the East

In 2001, he worked two weeks in helping for preparation for the US

Coast of Florida.

Senior Open at Salem Country Club in Peabody, Massachusetts. He was a consultant for Jeff Balduff in the preparation for building Rattle

As a player he won local and sectional events, as well as had a few

Snake Ridge Country Club and helped Superintendant Kyle Frederick

strong finishes in national championships. He has played in multiple

with the grow-in.

National Club Professional Championships as well as Nike Tour Events. He still remains somewhat competitive within his Section,

Rick has been Superintendent at Blackhawk Golf Club since 1980.

although his priorities have shifted. He has two wonderful children Madison, 12 and Jackson, 8 attending Steve was the President of the Southern Ohio PGA from 2001-2003.

Olentangy Schools.

He was elected to PGA membership in 1989. In 2002 he received the Horton Smith Award for Education from the Southern Ohio PGA. Steve is originally from Fairborn, Ohio. He has been married since 1992 and has two children. Congratulations Steve! 8

Congratulations Rick!

2008 Scholarships Presented Awarding scholarships to turfgrass students at Ohio schools and universities is an important function of the OTF. OTF has awarded more than $450,000 in student scholarships since 1964. OTF presented scholarships to the following turfgrass students from around Ohio: Ryan Bartels, OSU Robert Emmitt, Cincinnati State Tech. & Community College

to four students who received the 2008 Ronald D. Baker Memorial Scholarships. The Ronald D Baker Memorial Scholarship of the Dayton Foundation was established in 1993 in honor of Ronald D. Baker, a past chairman of Leisure Lawn, Inc., who believed in the necessity of continued educational opportunities for all individuals. The Fund provides scholarships to students at The Ohio State University pursuing a degree in Turfgrass Management. In

Joseph Lachey, OSU

2001, OTRT was granted the privilege of awarding these

Aaron Maze, Clark State Community College

scholarships on behalf of the Baker family.

Mitchell Ringwald, OSU Thomas Tamaska, Cincinnati State Tech. & Community College

Congratulations to the following four students for receiving the 2008 R.D. Baker Memorial Scholarships:

Two special Memorial Scholarships were presented to exceptional students deserving recognition for their outstanding accomplishments in school, work and the community. The 2008 recipients were: Lance Bailey, OSU/ATI (George Biddulph Memorial Scholarship) Brandon Maunz, OSU

Eric Conley, OSU Arly Drake, OSU Renee Geyer, OSU/ATI Eric Radachi, OSU

OTF congratulates all of the 2008 Scholarship recipients and looks forward to their continued contributions to

(Don Sweda Memorial Scholarship)

Ohio’s turfgrass industry. For information regarding 2009 OTF Awards, Grants & Scholarships Committee chair Dan Walter presented an additional $10,000 in scholarships

scholarships contact the OTF office at 888-683-3445 or visit www OhioTurfgrass.org.

OTF President Todd Voss (left) with the 2008 scholarship recipients.

2008 President Recognized

The Organization was formed in 2008 as a group to help turfgrass alumni from the state of Ohio stay connected. The first event was a social gathering held in the basement of Barley’s across the street

Outgoing 2008 OTF President Todd Voss was honored for his

from the convention center. The Event was sponsored by The Scotts-

contributions to Ohio’s turfgrass industry at this year’s Awards

Miracle Gro Company and Advance Sensor Technologies, and would

Presentation. Voss was presented a plaque by Vice President, Dan

not have been possible without their support. About 80 people showed

Walter, who thanked Todd for his many years of dedicated service

up for the first event. There was some light food and beverages,

to OTF. Voss has served on the OTF Board of Directors since 2001,

but more importantly there were friends. The purpose of the event

served on numerous committees, and has been involved with

was to have a venue in which the attendees could get together and

the turfgrass industry since 1986. He is currently Superintendent

just socialize. There is so much to do at the OTF conference, from

at Double Eagle Club in Galena. OTF thanks Todd Voss for his

education to the trade show, the auction, corporate parties and so

dedication and leadership serving as 2008 President.

on, sometimes just getting together with old friends gets over looked. “We wanted to organize an event with the sole purpose to socialize with old friends, former classmates, and industry professionals” said Gina Zirkle. “We also wanted to see what interest’s people would have in such an organization.” There was no charge to attend the social gathering. Alumni had the opportunity to join the association for $15, and a Jim Tressel Autographed football was auctioned off to raise money for the association. With the success of the Social Gathering, and a clear demand for a way to stay connected with alumni and friends within the industry, the group has planned to repeat the social gathering at the 2009 OTF conference as well as offer other networking opportunities, including developing a website and a newsletter that will highlight Ohio Turfgrass alumni activities. If you would like to help with the growth of the Ohio Turfgrass Alumni Association, please

2009 President Dan Walter (left) presents a plaque to Todd Voss.

contact Gina Zirkle at [email protected] or Matt Williams at [email protected].

First Ohio Turfgrass Alumni Social Gathering a Big Success A new addition to the Ohio Turfgrass Foundation conference and show in 2008 was the Ohio Turfgrass Alumni Association Social Gathering. This event and group was organized by Gina Zirkle, a 2004 OSU Alumni, and Research specialist at The Scotts Company, with help from Joe Enciso of Advance Sensor Technologies and Matt Williams of Ohio State. 10

Matt Williams (left) with Gina Zirkle and Joe Enciso.

Bernhard and Co. Makes Significant Donation to Turfgrass Research Facility

Bernhard and Company, manufacturers of Express Duel and Anglemaster reel and bedknife grinders, in cooperation with Reynolds Golf and Turf Equipment, have loaned their reel and bedknife grinding system to the OTF/OSU Turfgrass Research and Education Facility. In a unique partnership, the research facility will have the machines available for maintaining the twenty plus cutting units that are used at the facility to mow the research plots. In addition, OSU plans to add cutting unit theory and maintenance to its education program. Dr. Karl Danneberger, Professor in the Department of Horticulture and Crop Science said “Reel and bedknife maintenance is a complicated subject that has an enormous impact on turfgrass quality. Our students traditionally have not been exposed to this in the classroom or in the field before they graduate, so this donation gives our students the chance to learn the basics of reel sharpening and operation.” “There are so many uses for grinders in education,” says Stephen Bernhard, owner of Bernhard and Company. “It is important for students to understand the implications of developing a sharpening program and how it relates to turf health, appearance and playability. We look forward to a long-standing relationship with OTF and The Ohio State University.” Representatives from Bernhard and Co. and Reynolds Golf and Turf were at the research center recently installing and training facility management on the new machines. If you or your company is interested in making a donation in the support of research and education at Ohio State please contact Matt Williams, [email protected].

OTF Elects 2009 Officers & Trustees

Dan Walter PRESIDENT

Todd Dodge TRUSTEE

Joe Enciso VICE-PRESIDENT

Ryan Gregoire TRUSTEE

Doug Gallant TREASURER

Kim Kellogg TRUSTEE

Don Lawrence TRUSTEE

Dan Walter – President

the VP of Sales for Advanced Sensor Technology. Joe is a member

Dan is originally from Cleveland, OH and began working at

of many local superintendent associations and has been involved

Briarwood Golf Course while enrolled at OSU-ATI. After graduation,

with OTF his entire career. He has served on the OTF Board since

he moved to Columbus and worked at Groveport C.C. under Bill

2004. He is married to Laurie and has three children, Ryan, Ellison

Risch. In 1989 he became Assistant Supt. at Moundbuilders C.C.

and Nathan. Joe enjoys playing golf with friends and spending

in Newark, OH, and worked under Greg Goedde. In 1992 he moved

lots of time with his family. The Ohio State Buckeyes are his other

to Cincinnati and became Asst. Supt for the City of Blue Ash and

pastime. Go BUCKS!

became Superintendent in 1995, the position he currently holds. He is past president of the Greater Cincinnati GCSA and has served

Doug Gallant – Treasurer

on the OTF Board since 2003.

Doug is the Head Groundskeeper for the Cincinnati Reds and was named to his current position in 2001, where he oversees

Dan is married to his wife Renee, a fellow ATI graduate, and has two

all aspects of the daily playing field maintenance. He attended

children, Courtney and Christian. In his spare time he enjoys being

Wilmington College, where he played baseball for two seasons

involved in his children’s extracurricular activities. In addition, he

for former Reds star Brooks Lawrence. He later transferred to

enjoys attending OSU football games with his family and friends. He

The Ohio State University and graduated in 1994 with a degree

enjoys golfing and various other recreational activities.

in turfgrass management. Doug previously worked for Cincinnatibased The Motz Group where, as a project foreman, he helped

Joe Enciso – Vice President

supervise Cinergy Field’s conversion from artificial turf to natural

After graduating from Mechanicsburg High School, Joe attended

grass following the 2000 season. He also was a project foreman

and graduated from The Ohio State University with degrees in

for projects at Pro Player Stadium in Miami, Turner Field in Atlanta,

Agronomy and Business. His advisor was Dr. Karl Danneberger. He

Dodger Stadium in Los Angeles and Ohio Stadium in Columbus. He

has been working in golf course industry since 1982. He is currently

also was a member of the sod crew for SuperBowl XXXIII and Super

12

Bowl XXXV. Doug resides in Georgetown, Ohio, with his wife Lisa,

the owners of Grasshopper Property Maintenance, Inc., a full

daughter Erica and son Zachary.

service company that serves the central and eastern portions of rural Holmes County. In addition to turf management, the

Todd Dodge – Trustee

company offers landscape design, build and maintenance, plus

Todd started his career in golf course maintenance as a teenager

snow removal services.

when his high school team worked on a course in exchange for their greens fees. After receiving his Associate’s Degree in Civil

Kim serves on the Holmes County Chamber Board of Directors and

Engineering Technology from the University of Toledo and his turf

is active in a variety of church and community activities. He has

grass certification from Rutgers University in 1997, he became

a diverse employment background, including law enforcement,

the Superintendent at the Moose Golf Course in Sidney, Ohio. In

community development through voluntary service with the

2002, he moved to Brown’s Run Country Club in Middletown, Ohio

Mennonite church, and sales and management in the ag and

as an Assistant Superintendent. Throughout his career, Todd has

media (print and radio) industries.

been active in the Miami Valley GCSA serving on the chapter’s board from 2000-2002. He received the MVGCSA’s 2007 Assistant

He and his family live in Millersburg, the heart of Amish country.

Superintendent of the Year award for his commitment to the

Sons, Chad and Matt are both involved in Grasshopper. Kim is

chapter. Since 2002, Todd has also been a member of the OTF golf

nominated for his 2nd term as Trustee.

tournament committee. Todd lives in West Chester, Ohio with his wife and is an avid golfer.

Don Lawrence – Trustee Don graduated from Texas Tech University in 1986 with a BA in

Ryan Gregoire – Trustee

Accounting and he earned his Turfgrass Management Certificate

In 1989 when Ryan was just a junior in high school his father

from Michigan State University in 1995. Don recently started his

Cliff thought it would be a great idea to help start Ryan out with a

new position as a Technical Sales Consultant with Midwest Turf

business. By 1990 Agricultural Design was incorporated. In 1991

Consultants after serving as the Superintendent and General

Ryan graduated from Cloverleaf High School and continued his

Manager of Red Hawk Run Golf Course in Findlay for the past 10

education by attending OSU/ATI.

years.

He has provided services such as construction, renovations and

Don recently received the Distinguished Service Award from the

repairs to countless athletic fields throughout Ohio, Indiana,

NWOGCSA for his commitment and work on the board as Secretary

Kentucky and Pennsylvania for a variety of School districts,

and Treasurer for many years.

municipalities, minor leagues and a few Major League ball fields. Don and his wife Lora reside in Findlay and have two daughters, At just the age of 7 Ryan attended many Ohio Turfgrass Foundation

Kimberly (11) and Melissa (8).

conferences with his father and brother becoming an official member himself in 1990. It was his honor and pleasure to be a speaker on the topic of Athletic Field Drainage for the Ohio Turfgrass Foundation 2007 Conference. Ryan and his wife Kelly are the proud parents of three beautiful boys Preston (7), Parker (5) and Peyton (1). Kim Kellogg – Trustee Kim served 6 years on the Ohio Lawn Care Association board, including a term as president in 2004. Kim and his wife, Char, are

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Ohio State Golf Turf Spring Tee-Off to Return February 18 – 19 with the addition of the OSU Sports Turf Short Course The Ohio Turfgrass Foundation, in conjunction with OSU-Extension

OSTMA and OSU. For more information visit www.BuckeyeTurf.com.

and OSU/OARDC, is pleased to present the 6th Annual Ohio State

To register or with questions call 888-683-3445.

Golf Turf Spring Tee-Off Conference, Wednesday, February 18 and Thursday, February 19 at the Holiday Inn on the Lane, Columbus.

ODA Testing for Pesticide Licensing (seating is limited) will be offered from 2:00 – 4:00 pm on Thursday. If planning to take a

This two-day conference will allow golf turf professionals and

test, you need to schedule with the ODA by calling 800-282-1955

students the opportunity to prepare for the challenges they may be

or online at www.ohioagriculture.gov. Select Regulatory Programs

facing this season, along with the latest research updates, and trends

then Schedule an Exam. You must bring a photo ID with you to the

in Ohio’s golf industry. GCSAA Education Points and ODA Pesticide

testing.

License Re-Certification credits are available. The Spring Tee-Off includes a Welcome Reception for all Wednesday participants.

This year’s Ohio State Golf Turf Spring Tee-Off is sponsored by BASF and Helena Chemical. The evening reception is co-sponsored by

New this year, and in conjunction with the Ohio State Golf Turf

Advan LLC and Syngenta.

Spring Tee-Off, will be the addition of the 12th Annual OSU Sports Turf Short Course. Everyone involved in managing athletic fields

GCSAA Education Points

is invited to attend. The Sports Turf Short Course is similar in

Wednesday, February 18 = .70 Education Points

format to the Spring Tee-Off and will be held at the same time

Thursday, February 19 = .60 Education Points

and location. Ohio Department of Ag, Ohio Parks & Recreation

For hotel reservations, please contact the Holiday Inn on the Lane

Association, GCSAA and Sports Turf Managers Association CEU’s

at 614-294-4848 or www.holidayinnosu.com and register as a

will be offered. The Sports Turf Short Course is sponsored by OTF,

guest of the Ohio Turfgrass Foundation.

program SCHEDULE Wednesday, February 18

Thursday, February 19

9:00 am – 10:00 pm

A Year in Preview, Bob Brame, USGA

8:00 am – 9:00 am

Weed Control for Golf Turf

10:00 am – 11:00 pm

OSHA Update, Howie Eberrts, OSHA



Dr. Dave Gardner, OSU (Category 8, 1 hr)

Plan Your Work, Work Your Plan,

9:00 am – 10:00 am

New Insecticide Technology for Ornamentals

But Know What it Costs



Dr. David Shetlar, OSU (Category 6a, 1hr)



Darrin Batisky, Chartiers Country Club

10:00 am – 11:00 am

Nitrogen Fertilizer & Dollar Spot – Chapter 13

12:00 pm – 1:00 pm

Lunch (on your own)



Dr. John Street, OSU (Category 8, 1 hr)

1:00 pm – 2:00 pm

Rules & Maintenance, Bill McCarthy, USGA

11:00 am – 12:00 pm

Maintaining Greens under Low Light Conditions

2:00 pm – 3:00 pm

Management of Aquatic Plants in Ponds



Dr. Karl Danneberger, OSU



Bill Lynch, OSU Extension (Category 3a, 1 hr)

12:00 pm – 1:00 pm

Lunch (on your own)

3:00 pm – 4:00 pm

Golfdom Industry Surveys

1:00 pm – 2:00 pm

Pesticide Regulations Update for Golf Courses



Larry Aylward, Golfdom Magazine



Joanne Kick-Raack, OSU (Category CORE, 1hr)

2:00 pm – 3:00 pm

Diagnosing Spring Diseases and Disorders and

4:00 pm – 5:00 pm

Panel Discussion, Risk Management



Planning Management Strategies for Healthy Turf



Bob Brame, USGA; Howie Eberts, OSHA;



Joe Rimelspach, OSU (Category 8, 1 hr)



Mark Farrell, Westfield Group CC;

2:00 pm – 4:00 pm

ODA Testing – Pesticide Applicator Licensing



Scott Jameson, Vorys, Sater, Seymour & Pease LLP;

3:00 pm – 4:00 pm

Bunker Renovation & Drainage



Jason Straka, Hurdzan/Fry Golf Course Design



Craig Schreiner, Craig Schreiner Golf, Inc.

11:00 am – 12:00 pm

14





Graduate Student Spotlight John Koenig – Plant Pathology

John Koenig graduated from The Ohio State University with a major in Turfgrass Science and a minor in Agricultural Business in 2006. During his time at Ohio State he was an active member of the OSU Turf Club, participating in the STMA and GCSAA turf bowls and was elected as the Liaison/ Head of Marketing in 2004 and Vice President in 2005, receiving several outstanding student achievement awards. His education and work experience at The Ohio State University Athletic Field Maintenance Department, Sylvania Country Club, and Kirtland Country Club and volunteer work at Columbus Crew Stadium has led to a career path that he knows will bring challenges and great satisfaction. To cap his formal academic career, he is pursuing a master degree in Turfgrass Pathology under Dr. Mike Boehm and will be graduating in 2009. His research objective is to determine the relationship between climatic conditions and pathogenicity of Sclerotinia homoeocarpa to optimize fungicide efficacy. In 2006 and 2007 replicated field studies were established at two locations in central Ohio to determine the relationship between climatic conditions and the ideal moment for making preventive fungicide applications. Weather monitoring stations were installed at both locations to record on-site soil moisture, soil temperature, air temperature, precipitation and relative humidity amounts. Sequential applications of propiconazole and chlorothalonil as a combination treatment were applied to asymptomatic fairway turfgrass in the fall of 2006, spring of 2007 and in the fall of 2007 through July 1, 2008. Disease severity was quantified as the number of dollar spot infection centers and percent of dollar spot symptoms per plot using a self-illuminating box specially constructed specially for this project and the APS Press’s Assess Image Analysis software for plant disease qualification. Data was recorded through July of 2007 and 2008 to calculate area under disease progress curves for each treatment and data collection method. Data from this study was presented at the Ohio Turfgrass Foundation’s field day, The American Pathological Society’s conference in Minneapolis Minnesota, The Joint 5 Agronomy Meetings in Houston, Texas and the Plant Pathology Seminar series at Cornell University. To receive an update on his research please contact John at [email protected].

15

NEW GROWTH & TECHNOLOGY

Broadleaf Weed Control in Spring Dr. David Gardner, OSU, Dept. of Horticulture & Crop Science

As spring approaches it becomes important to begin thinking

effective probably for 60-90 days depending on the product used

about your turf weed control programs. Remember that the first

and the rate applied. Broadleaf weeds, whether new or regrowth

step to controlling weeds is to identify which weeds are present

from below ground structures on the surviving original weeds, will

on a site. Proper identification of the weed will assist with two

reappear. Fall applications tend to result in longer term control due

things: 1) selecting the correct herbicide and 2) applying that

to more complete translocation into below ground weed parts. If

herbicide at the right time in the weed’s life cycle in order to

you see weeds this fall, consider making an application with an

maximize control.

ester formulation of an herbicide recommended in table 2.

If you are primarily dealing with annual broadleaf weeds (tables

After determining your target weeds then use table 2 to select

1a or 1b) then you can control these possibly with a preemergence

the best herbicide for the application. Table 3 includes a list of

herbicide (check the label of your crabgrass control product) or

combination herbicides which are commonly applied in order to

postemergence. The issue with using a preemergence herbicide

broaden the spectrum of control on sites with multiple weeds

is usually one of timing. For example, knotweed germinates in

species. Always read the label prior to use of a herbicide. Be

late March, before we recommend application of preemergence

particularly mindful of the reseeding interval if any renovation

herbicides. Late germinating weeds, such as oxalis, germinate very

work is planned, susceptible weed species and the site and or use

late, after most preemergence products have lost effectiveness.

restrictions of the product.

However, the preemergence herbicide will provide some defense. Always check the label and remember to target the application

New Herbicide Formulations

for crabgrass control, making the application sometime in April

Several new herbicide formulations or active ingredients have

when Forsythia are in bloom. If you have some breakthrough then

been released for use in turf during the past few years. There

postemergence products are very effective. However, you will

seem to be three major trends with the emergence of these new

want to target the weeds early in their life cycle, before they have

herbicides. The first is that many of these materials promise to

the chance to set seeds that will become next year’s infestation.

allow the turf manager selectivity, particularly with perennial grass weed control, that even five years ago we would not have

Use tables 1c and 1d to determine if you have perennial broad-

thought possible.

leaf weeds and when the most appropriate time to control them is. Usually fall time applications are recommended for perennial broadleaf control. If you make a springtime application (and most do for obvious reasons) then know that this is going to be 16

continued on page 18

Table 1a – Annual Broadleaf Weeds

(stem on end leaf distinguishes it from white clover)

(has a central taproot and does not root at the nodes)

black medic – Medicago lupulina

mallow – Malva rotundifolia

Corn speedwell – Veronica arvensis

lambsquarters – Chenopodium album

virginia pepperweed

(sometimes is confused with crabgrass when first emerging)

knotweed – Polygonum aviculare

Table 1b – Summer Annual Broadleaf Weeds

(may have a reddish stem and taproot)

(fleshy leaves)

(milky sap distinguishes it from knotweed)

pigweed – Amaranthus blitoides

purslane – Portulaca oleracea

spurge – Euphorbia supina

carpetweed – Mollugo verticillata

pineappleweed – Matricaria matricarioides

(heart-shaped leaves)

Oxalis (yellow woodsorrel) – Oxalis stricta

17

continued from page 16

Certainty will give some selective control of rough bluegrass. Consult the product labels for more specifics about timing, rates, and turf species to which these materials can be applied.

These new herbicides are bispyribac-sodium (Velocity®), me-

The second trend is that there are many formulated products either

sotrione (Tenacity®) and sulfosulfuron (Certainty®). Velcoity pro-

newly released or in various stages of testing that offer “single

vides some selective control of annual bluegrass. Mesotrione will

application” weed control of both broadleaf and grassy weed

selectively control creeping bentgrass. Though not on the label,

species. Q4® and Quincept® are examples of products intended

mesotrione also has activity on nimblewill and orchardgrass.

to control all weeds postemergence with a single application. Both

Table 1c – Perennial Broadleaf Weeds

Figures include recommended timing of herbicide application for best control.

18

White Clover – Trifolium repens (Fall)

dandelion – Taraxacum officinale (Late Spring or Fall)

wild violet – Viola papilionacea (Spring or Fall)

blackseed Plantain – Plantago rugelii (Fall)

buckhorn plantain – Plantago lanceolata (Fall)

canada thistle – Cirsium arvense (Fall)

mouse ear chickweed – Cerastium vulgatum (Fall)

curly dock – Rumex crispus (Fall)

ground ivy – Glecoma hederacea (Spring or Fall)

combine 2,4-D, dicamba, and quinclorac (the active ingredient in

Another emerging trend is that with the increased use of granular

Drive®). Q4® also contains sulfentrazone and thus has activity

herbicides, there has been a significant amount of research into

on yellow nutsedge. Quinclorac is of course not new, but BASF

carriers that more effectively deliver the herbicide to the target

has released a new formulation and increasingly quinclorac is

weed. Because of this, granular herbicide technology seems

appearing in combination products, not just for crabgrass control,

poised to improve considerably in the next few years. More soil-

but also for broadleaf weed control, particularly clover. Several

active herbicides that are more effective when relying on soil

other combination products, that will afford both pre and post-

take-up are being tested. Also, the formulation technology of the

emergence control or broadleaf and grassy weeds with one

granule is improving to increase the amount of contact between

application, are in various stages of testing.

the herbicide with the foliage.

Table 1d – Perennial Broadleaf Weeds

Figures include recommended timing of herbicide application for best control.

bull thistle – Cirsium vulgare (Fall)

chicory – Chicorium intybus (Spring)

field bindweed – Convolvulus arvensis (Early Summer)

Creeping speedwell – Veronica filiformis (Fall)

indian mock strawberry – Duchesnea indica

yarrow – Achillea millefolium (Late Spring to Mid-Summer)

wild carrot – Daucus carota (Spring or Fall)

red clover – Trifolium pratense (Fall)

birdsfoot Trefoil – Lotus corniculatus (Fall)

19

Table 2 – Recommended Herbicides for Broadleaf Weed Control

Summer Annual Broadleaf Weeds Black Medic Carpetweed Common Mallow Corn Speedwell Knotweed Lambsquarters Oxalis (Yellow Woodsorrel)

A

A

B

Pigweed Pineappleweed Prostrate Spurge Purslane Virginia Pepperweed Winter Annual Broadleaf Weeds Common Chickweed Common Groundsel Henbit Prickly Lettuce Shepard’s Purse Sowthistle (Annual) Biennial and Perennial Broadleaf Weeds Birdsfoot trefoil Blackseed Plantain Buckhorn Plantain Bull Thistle Canada Thistle Chicory Creeping Speedwell (Veronica) Curly Dock Dandelion Field Bindweed Ground Ivy (Creeping Charlie) Indian Mock Strawberry Mouse Ear Chickweed Red Clover White Clover Wild Carrot Wild Violet Yarrow Where the recommendation is denoted by a letter, the combination of herbicides with the same letter is recommended. n Best Choice

20

n Effective

B

Sulfentrazone

Carfentrazone

Quinclorac

Triclopyr

Fluroxypyr

Clopyralid

Dicamba

MCPP

MCPA

2,4-DP

2,4-D

Isoxaben

Oxadiazon

Postemergence

Siduron

Dithiopyr

Prodiamine

Pendimethalin

Benefin

Ethofumesate

Weed Species

Bensulide

Preemergence

Pyrfaflufen

Sulfentrazone

Carfentrazone

Triclopyr

Quinclorac

Fluroxypyr

Dicamba

MCPP

MCPA

2,4-DP

2,4-D

PRODUCTS

Clopyralid

Table 3 – Broadleaf Herbicides and Combination Products

Formula 40, Dymec, Weedone LV4, Weedar 64, LESCO A-4D, Weeddestroy AM-40, Opti-Amine, Harball, Barrage HF MCPP 4-Amine, Lescopex, Turfgro MCPP 4K, Mecomec 2.5, Mecomec 4 2 Plus 2 Banvel, Diablo, Vanquish Four-Power Plus, Super D Weedone Trimec Classic, Trimec 899, Trimec 992, Trimec LAF-637, Strike 3, Three Way Selective, Trimec Bent, Bent Selective, Triplet WS, Triplet SF, Trexsan, Mec-Amine-D, Mec Amine-BG, Trimec Plus1 MCPA 4-Amine Tri-Power, Trimec Encore Weedone DPC, Turf D-DP Trimec Turf Ester, Super Trimec, Brushmaster, Weed and Brush Killer Three Way Ester, Tri-ester, Tri-amine, Dissolve, Spoiler Tri-ester II, Tri-amine II Turflon Chaser, Chaser 2, Turflon II amine Cool Power, Horsepower Lontrel Chaser Ultra Confront Momentum Battleship Millenium Ultra 2, Millenium Ultra Plus1 Spotlight Chaser Ultra 2 Battleship III Momentum FX, Momentum FX2 Escalade, Escalade 2, Escalade Low Odor Strike Three Ultra 3 Drive Quincept Quicksilver Shutout Speedzone Powerzone Dismiss Surge Q4 Octane 1

Trimec Plus and Millennium Ultra Plus also contains the crabgrass herbicide MSMA.

21

NEW GROWTH & TECHNOLOGY

Turfgrass Weed Control and Herbicide Update – 2009 Dr. John R. Street, Dr. David Gardner, Deborah Holdren and Pamela J. Sherratt, OSU, Department of Horticulture and Crop Science

I. Annual Grass Weed Control

b) Tenacity (mesotrione), a new Syngenta herbicide, can be ap plied at the time of seeding for preemergence control of several

A. Cultural Control

annual grasses and broadleafs.

The most effective control against the establishment of annual



grass weeds in turfgrass is the culture and maintenance of a dense,

2. Established Turfgrass

healthy stand of turfgrass. This preventative cultural approach is

a) Preemergence annual grass herbicides for 2008 include:

successful only if proper fertilization, mowing, irrigation, pest control,

• Benefin (Balan)

etc. practices are implemented in the culture of the turfgrass.

• Bensulide (Betasan, others)

Unfortunately, in many turfgrass areas, the desirable turfgrass fails

• Pendimethalin (Pre-M, Pendulum, Pendulum Aquacap, others)

to establish sufficient competition to prevent all the germinating

• Oxadiazon (Ronstar)

annual grass weeds from establishing and the need for preventative

• Trifluralin + Benefin (Team Pro)

chemical control results.

• Dithiopyr (Dimension) • Prodiamine (Barricade)

The most common annual grass weeds to encroach Ohio’s turfgrass areas include:

3. Soil Temperature The temperatures listed in table 2 refer to the average soil temp-

• Crabgrass (Large, Smooth)

• Fall Panicum

erature in a 24-hour period over several days. Monitoring soil

• Goosegrass

• Barnyardgrass

temperature (most accurately on site) is one of the best ways to

• Yellow Foxtail

• Annual Bluegrass (Poa annua)

predict weed germination. In the spring, soil temperatures within the landscape can vary considerably, with south and west facing

B. Preemergence Chemical Control

exposures heating up most rapidly. Therefore these areas should be

Most turfgrass managers across the state continue to rely on the use

the main target monitoring sites in the landscape for temperature

of preemergence herbicides for assistance in the control of annual

and degree-day determinations.

grass weeds. It is also important to note that critical soil temperatures for annual 1. Newly Seeded Turfgrass (mowed less than three times)

grassy weed germination vary among species (table 2). Annual

a) Siduron should be applied at the time of seeding or prior to

bluegrass, for example, germinates significantly earlier in the spring

the emergence of the weedy grasses. A second application may

(i.e. 45 F soil temperatures) relative to most other annual weedy

be necessary where weed pressure is heavy.

grasses. Preemergence herbicides will need to be applied very early

22

in the season for maximum efficacy on annual bluegrass. Late fall

germination and emergence in Columbus occurs between April 20

applications of preemergence herbicides may be an alternative

and 25. Normally, target dates for making preemergence crabgrass

approach where annual bluegrass is a key target weed.

treatments in Ohio are:

4. Degree-days

Northern Ohio

April 1 – May 1

Another useful method for predicting crabgrass emergence is

Central Ohio

March 15 – April 15

phenology. Typically, phenology refers to using temperature as a

Southern Ohio

March 1 – April 1

basis for predictive methods because plant growth and development depend on temperature. Fidanza and Dernoden (1996) provided

It is a sound agronomic strategy to apply the preemergence herbicide

useful information to predict crabgrass emergence as influenced by

a little earlier in the spring than to delay the application and miss the

growing degree-days.

target date window. Remember, improper timing is considered one of the major reasons for preemergence herbicide failures.

By monitoring crabgrass emergence patterns in conjunction with calculating degree-days accumulation, turfgrass managers can

Irrigation or rainfall with approximately 1/2" water within several days

develop models as a guide for targeting preemergence herbicide

after a preemergence herbicide application is critical for maximum

applications in their region. It is important to understand that

effectiveness. Irrigation/rainfall serves to move the herbicide off of

biological processes don’t suddenly turn on when a specific degree-

the turf foliage and/or fertilizer granule and into the zone of influence

day total is reached but they occur within a range of degree-days. For

(1-2" of the soil surface) where the herbicide becomes active.

example, in Fidanza’s study at the University of Maryland, crabgrass

Remember, the crabgrass seed is germinating in the soil and it is

first germinated within a degree-day range of 42-78.

when the seedlings are emerging (growing toward the soil surface) that contact with the herbicide is made. Preemergence herbicides do

It is also important to recognize that crabgrass will continue to

not affect ungerminated (dormant) seed.

germinate and emerge for several weeks after initial crabgrass emergence is observed. Fidanza reported peak gemination occurred

Degree-days refers to the accumulation of temperature over time

at 150-225 growing degree-days and then for a considerable time

and it dictates the rate of growth and development of plants and

thereafter.

organisms. Below a certain temperature plants are essentially dormant and growth and development stops. This temperature is

Therefore, preemergence herbicide applied after the initial germ-

referred to as the base temperature. For most organisms the base

ination period will still provide a significant benefit in preventing

temperature is 50 F.

additional crabgrass emergence that occurs before the peak. Degree-day accumulation is the sum of the number of degrees However, crabgrass that has germinated most likely will mature and

(degree-days or degree-day units) by which each day’s average

result in consumer complaints or dissatisfaction. This problem can be

temperature exceeds the base temperature; and it is easy to

addressed by (1) combining a preemergence with a post-emergence

calculate. One degree-day is equal to 1 degree above the base

herbicide if the target date is missed or (2) using a specialty herbicide

temperature in a 24-hour period. (See calculating degree-day

like Dimension (table 3) that has pre- and post-emergence activity.

accumulations chart for a more detailed explanation).

Dimension is the only preemergence herbicide that provides effective postemergence activity when applied prior to tillering.

You calculate degree-days daily and summarize them over time beginning on a specific starting date. Fidanza used soil temperature

5. Calendar Dates

at the 1" depth to calculate degree-days since it correlated well with

The timing of preemergence herbicide applications is the most

smooth crabgrass emergence in the study.

critical component of an effective chemical control program. As a general rule, apply preemergence herbicides one to two weeks prior to crabgrass seed germination in the early spring. Typically, crabgrass

continued on page 24 23

CALCULATING DEGREE-DAY ACCUMULATIONS q Determine each day’s average temperature.* (Daily max. temperature + daily min. temperature/2 = daily average temp.) q Determine the degree-days for each day. (Daily average temperature - base temperature = degree-day temp.) q Total the daily degree-days for each day.

EXAMPLE OF DEGREE-DAY ACCUMULATIONS – (using a base temperature of 54) Degree-day units DATE

Maximum Temperature

Minimum Temperature

Average Temperature

After subtracting 54 F (base)

Cumulative

5/11

72

52

62

8

8

5/12

68

54

61

7

15

5/13

67

49

58

4

19

5/14

71

45

57

3

22

5/15

70

48

59

5

27

*Soil temperature at the 1" depth. Base Temperature for Ohio is 50 degrees F. continued from page 23

carefully check rate and application accuracy, up the preemergence rate more to the upper end of the range, or utilize a follow-up

Over the 3-year period smooth crabgrass first emerged when

sequential application at half rate (Ohio). In OSU research for

minimum soil temperatures averaged 54 F, which was used as the

example, pendimethalin and benefin/trifluralin provide better and

base temperature.

more consistent efficacy at 2 lb a.i./acre than at 1.5 lb a.i./acre.

The proper rate and uniform distribution of the preemergence

C. Postemergence Chemical Control

herbicide is also critical to insure good efficacy. A certain con-

After annual grassy weeds have established in turfgrass areas, their

centration of each preemergence herbicide must be maintained

removal usually necessitates the use of postemergence control

in the upper soil zone at the threshold level during the active

products. The herbicides available for postemergence annual grassy

germination period for season-long control.

weed control in 2009 include (table 3):

Improper distribution, improper rate, and improper pattern overlap

• Fenoxaprop p-ethyl (Acclaim Extra)

can allow for weak spots in the surface chemical barrier that may

• Dithiopyr (Dimension)

result in concentration of the herbicide dropping below the threshold

• Quinclorac (Drive)

level allowing for short and long term (residual) failures. These

• Tenacity (mesotrione)

factors are also ranked high on the list of reasons for preemergence herbicide failure.

Dimension is unique in that it exhibits both preemergence and postemergence activity on crabgrass. It is most efficacious on young

Finally, agronomic programs that are consistently exhibiting short

crabgrass that is not beyond the 1-2 tiller maturity stage. Growth

term or long term preemergence herbicide efficacy failures should

stoppage of crabgrass occurs within 3-5 days after application but

24

actual kill takes 3-5 weeks. It is a good specialty herbicide for use

weed control in turfgrass. Recommended turfgrass use rate is 0.75

where the critical target date for crabgrass germination has been

- 1.00 lb a.i./acre. Season long control requires the application

missed, a postemergence application is required, but seasonal

of both spring and fall treatments. Gallery has no postemergence

preemergence control is still necessary.

activity on broadleaf weeds.

Tenacity will effectively control crabgrass postemergence. The

C. Postemergence Broadleaf Chemical Control

label states that 2 applications are required. In 2008 OSU research,

1. Broadleaf Weed Control on Newly Seeded Turfgrass (new turf-

Tenacity provided good-excellent postemergence crabgrass control

grass mowed fewer than three times)

with one application prior to tillering. A combination of Tenacity

a) Bromoxynil (Buctril) is available for use in nonresidential

and a standard preemergence (i.e. Barricade ) will allow early post

areas. Seedling turfgrass product use rate is 1.0 - 2.0 pt/acre.

control of non-tillered crabgrass and season-long pre control with

Pest weed control is achieved if the weeds are less than 2" tall

one application. Additional research is being conducted at OSU on

when treated.

Tenacity efficacy on tillered crabgrass at various herbicide rates and maturity stages.

b) 2,4-D can safely be used on young turfgrass provided the turf grass has been mowed at least thee times and the use rates do

Drive continues to be a good to excellent postemergence herbicide for crabgrass control. It does appear to provide some variability in efficacy/control in the intermediary crabgrass maturity stage of approximately 2-4 tiller at times. OSU research is continuing to evaluate approaches to address this variability issue. BASF has released a new formulation of Drive called Drive XLR8 that causes more rapid crabgrass discoloration following application and in our 2008 OSU research possible enhanced efficacy at the intermediate crabgrass maturity stage. This research will continue in 2009. The inclusion of sulfentrazone (Dismiss) with Drive to enhance efficacy has resulted in mixed/variable results to date in our OSU research trials. II. Broadleaf Weed Control

not exceed 1.0 lb a.i./acre. c) There traditionally have been two products labeled for control of weeds in newly seeded cool season turf: siduron and brom oxynil. Neither of these products are as effective as other herb icides used in established cool season turf but their safety to turfgrass seedlings makes them a good option. However, research conducted at major universities has concluded that a recent introduction, carfentrazone (marketed as Quicksilver by (FMC), provides safe and effective control of germinating broadleaf weeds in a newly seeded stand of either Kentucky bluegrass (Poa pratensis) or perennial ryegrass (Lolium perenne). The label for Quicksilver has been updated to allow application to these species seven days after emergence. Carfentrazone is a fast acting contact herbicide that has been recommended as an

A. Cultural Control

additive to systemic herbicides, such as 2,4-D or triclopyr, in order

The same preventative cultural controls recommended for addressing

to hasten burndown of the weed. It is important to note that since

annual grass weeds also apply to broadleaf weeds. A sampling of

carfentrzone is a contact herbicide, it will be effective for the control

broadleaf weeds commonly found in Ohio’s turfgrass areas include:

of germinating annual broadleaf weeds in a newly established turf. However, it will not be as effective if used against mature broadleaf

• Dandelion

• Common chickweed

• White clover

• Yellow wood sorrel

• Buckhorn plantain

• Ground ivy

Another promising development for springtime weed control at est-

• Common plantain

• Black medic

ablishment is with quinclorac (marketed Drive). Quinclorac is labeled

weeds during an overseeding operation.

for application any time before or after establishment of tall fescue. B. Preemergence Broadleaf Chemical Control Gallery, a Dow AgroScience’s product introduced in 1989, continues to be the only commercially available herbicide labeled for broadleaf

continued on page 26 25

continued from page 25

It continues to only have an approved label for golf courses and sod farms, but Syngenta is continuing active labeling for lawns/grounds.

And research shows that quinclorac can safely be applied to either

Postemergence treatments on established turf usually require a

Kentucky bluegrass or perennial ryegrass as little as 7 days after

second application at a 2 to 3 week interval and it is not suggested

seedling emergence. The labeled suggests restricting the use on

that the interval be shortened, especially on perennial ryegrass.

seedling turf to 30 days after emergence.

Apply to young actively growing weeds with a NIS type surfactant for best results.

Results of research recently conducted at The Ohio State University also indicate that not only can a combination of quinclorac and

Tenacity is a systemic preemergence and postemergence herb-

carfentrazone be applied to 7 day old seedlings of either of these

icide for the selective contact and residual control of weeds in

species, but that delaying the application to 14 or 21 days after

turfgrasses. It is in the triketone herbicide family and functions

emergence actually results in decreased weed control. This is likely

as a pigment inhibitor. This results in a temporary whitening or

because the herbicides become less effective as the weeds become

bleaching appearance to the target weed foliage. In general,

more mature and capable of competing with the germinating turfgrass.

symptoms appear 5 to 7 days after application and last for several

There was some slight phytotoxicity with the 7 day application, but the turf outgrew this by day 14. 2. Broadleaf Weed Control on Established Turfgrass The list of postemergence broadleaf herbicides for use in established turfgrass and their herbicide class are provided in table 4. The new Confront label does not allow for use on residential turf. It is permitted for use in other turfgrass areas (i.e. golf courses and sports fields). The label restriction is due to the presence of carryover of clopyralid residues in clippings and compost. The substitute for clopyralid is fluroxypyr, sold alone as Spotlight and in combination as Escalade. Other recent changes in herbicide formulations are the addition of carfentrazone and sulfentratzone in low concentrations in combination herbicide formulations for more rapid discoloration of broadleaf weeds. Carfentrazone combos include Speedzone and Powerzone and a sulfentrazone combo is Surge. Octane pyraflufen-

weeks prior to weed necrosis. III. Perennial Grass Weed Control Perennial grassy weeds continue to be a major weed problem for many turfgrass managers across Ohio. The problem lies in the control/removal of these undesirable grass weeds. A few of these grass weeds include: • Tall Fescue (growing in clumps)

• Nimblewill

• Bentgrass (as a contaminant)

• Quackgrass

• Poa trivialis (rough bluegrass)

• Orchardgrass

A. Non-Selective, Systemic Controls Glyphosate (Roundup Pro) and Glufosinate ammonium (Finale) are the two primary nonselective systemic herbicides used in turfgrass management. Roundup Pro is a Monsanto product and is a combination of glyphosate and a surfactant. A new Monsanto Roundup formulation called Roundup Pro Maxx will also be available in 2009.

ethyl) from SeaPro is a new contact herbicide presently being used

Glufosinate ammonium (Finale) is a product of Bayer. Finale, like

in a manner like carfentrazone. It is in the same chemical family

Roundup Pro, has some systemic activity, is foliar absorbed in 2-4

as carfentrazone – the sulfonylureas. See table 4 for all broadleaf

hours and has no soil residual activity.

weed combination options. Visual effects from Finale applications are expressed in 2-4 days after Tenacity (mesotrione) has recently been labeled for postemergence

application. The speed of initial discoloration following applications

control of a wide variety of broadleaf weeds. There are presently

of Roundup Pro and Finale can be further enhanced with the addition

35-40 broadleafs listed on the label (see label for susceptible

of nonselective contact herbicides such as Scythe or Reward.

weeds). Tenacity can also be used for pre and postemergence activity on summer annuals like oxalis and spurge in newly seeded

Glyposate has also been formulated for more rapid burndown of

turf situations.

weeds in QuickPro. QuickPro discolors weeds in two-three days.

26

B. Selective Controls

phytotoxicity if applied at higher rates and improperly. However, it

1. Tall Fescue Control

is an excellent seedhead suppression PGR as it functions as a

The Riverdale product, Corsair (active ingredient – chlorsulfuron),

mitotic inhibitor.

continues to be available for selective tall fescue control in established Kentucky bluegrass. This product should not be used

Proxy (ethephon), a Bayer product, is being used primarily for

on perennial ryegrass. The new Monsanto product, Certainty (active

growth suppression and annual bluegrass seedhead suppression

ingredient sulfosulfuron) is available for selectively removing tall

in some locations of the country (e.g. West Coast). Primo/Proxy

fescue from Kentucky bluegrass. Check the label for rates and

combinations have been used in the Midwest but seedhead con-

species precautions. The potential for stunting, discoloration, and

trol has been variable.

injury to Kentucky bluegrass and perennial ryegrass has resulted in limited use in the latter species.

b) Herbicides Bayer’s Prograss (ethofumesate) is a postemergence herbicide

2. Creeping Bentgrass Control

labeled for eliminating AB from creeping bentgrass, Kentucky

The new Monsanto product, Certainty (actual ingredient – sulfo-

bluegrass and perennial ryegrass. The best efficacy from Prograss

sulfuron), is available for selectively removing rough bluegrass

has occurred with multiple applications in the fall. See label for

from creeping bentgrass when summer applied.

rates and applications, but it’s a multiple fall application program.

The new product from Syngenta, Tenacity (active ingredient mes-

Velocity (bispryibac sodium) is an ALS inhibitor labeled in 2005

otrione), is also available for selectively removing creeping bentgrass

by Valent for postemergence control of annual bluegrass in

from Kentucky bluegrass. It requires multiple applications and

creeping bentgrass. It is presently not labeled for bentgrass

provides good safety on Kentucky bluegrass. It also has activity on

greens. Velocity will kill annual bluegrass in 4-6 weeks depending

a number of other annual grasses and broadleaf weeds (check the

on rate. It is most efficacious and recommended for application

label). Perennial ryegrass is more sensitive to Tenacity than Kentucky

between June 1 and September 15. It produces a banana yellow

bluegrass. Two to three sequential applications are required based

flash/discoloration on annual bluegrass and bentgrass in 4-8

on use rate for optimum control and the 14-21 day application

days and lasts 14-21 days on bentgrass. AB continues to discolor

interval should be adhered to especially on perennial ryegrass.

and decline with kill occurring in 4-6 weeks or longer depending



on the rate/frequency program. The more frequent/low rate



3. Annual Bluegrass (AB)

program (i.e. 10g a.i./acre every 2-3 days) has provided excellent

a) Plant Growth Regulators (PGRs)

and most consistent efficacy. Turf can be reseeded ten days after

Syngenta’s Trimmit (paclobutrazol) and Primo (trinexapac-ethyl)

the final Velocity application.

and SeaPro’s Cutless (flurprimidol) are all gibberellic acid synthesis inhibitors and all cell elongation inhibitors capable of assisting in

4. Other Weeds

the suppression of annual bluegrass and the conversion to a more

Yellow nutsedge is a prevalent perennial weed found in many

desirable species. They are also being used at lower rates to

turfgrass areas in Ohio. This weed is neither a grass nor a broadleaf,

reduce seedstalk length for enhancement of golf playability. Primo

but instead a sedge. Consequently, the annual grass and broadleaf

MAXX is a foliar absorbed PGR used more at lower rates to provide

herbicides have limited impact on this weed. Selective control of

color and quality enhancement rather than AB control. Cutless and

yellow nutsedge in turfgrass areas is limited to the use of Basagran,

Trimmit are used in CB/AB conversion programs in a variety of

Certainty (sulfosulfuron), and Dismiss (sulfentrazone) (see labels

rate frequency programs from traditional heavy rate spring-fall

for rates and timings). Again, be cautious on the use of Certainty on

programs to lighter rate spring-summer-fall programs, and a

KB and PR. OSU research has shown Dismiss to provide excellent

combination of the latter.

postemergence yellow nutsedge control.

Embark T/O and Embark Lite (melfuidide) are used for growth

Sedgehammer (Gowan Co.), previously Manage, is labeled for yellow

suppression and seedhead control of annual bluegrass on golf

nutsedge. It is foliar absorbed and has displayed excellent safety on

courses. Caution must be exercised because Embark can cause

all cool-season turfgrass species. 27

Table 1 – Annual Grassy Weed Control Ratings for Preemergence Herbicides

Chemical Name

Trade Name



Benefin

Balan

Fair-Good

Fair

Fair-Good

Team Pro

Good-Excellent

Good

Good

Benefin/Trifluralin

Crabgrass Goosegrass Annual Bluegrass

Other Points

Bensulide Betasan/Lescosan Good-Excellent Fair Fair-Good Dithiopyr Dimension Excellent Good Good-Excellent

Oxadiazon

Ronstar

Good

Excellent

Good-Excellent



Pendimethalin

Pre-M/Pendulum

Good-Excellent

Good-Excellent

Good-Excellent



Prodiamine

Barricade

Excellent

Excellent

Good-Excellent



Siduron

Tupersan

Good

Fair

Fair

Safe on low-cut Bentgrass Early post activity safe on low-cut Bentgrass Best for Goosegrass

Safe at Seeding

* There have been no changes in preemergence herbicide chemistry for several years.

Table 2 – Soil Temperatures for Annual Grass Germination Critical Soil Temperature*

Weed

F

C

Scientific Name



Large and Smooth Crabgrass

50-55

10-13

Digitaria sanguinalis & ischaemum



Goosegrass

60-65

15-18

Eleusin indica



Barnyardgrass

60-65

15-18

Echinochloa crusgalli



Foxtails

65

18

Setaria spp



Annual Bluegrass

45

8

Poa annua

* Watschke, T.L. 1995. Turfgrass weeds and their management. In Managing Turfgrass Pests.

Table 3 – Postemergence Annual Grassy Weed Herbicides and Their Characteristics Herbicide Crabgrass Goosegrass Yellow Broadleaf Phyto Foliar Combo w/ Pre Activity Rate of Foxtail Activity Absorption Broadleaf Activity Herbicides Acclaim Extra

yes

yes

yes

no

yes

yes

no

no

2-3 weeks

Dimension

yes

no

no

no

no

foliar & root

yes

yes

3-5 weeks



yes

no

yes

clover,

no

yes

yes

no

7-10 days

no

foliar & root

yes

yes

2-3 weeks

Drive



speedwell,



dandelion



Tenacity

yes

-------

-------

several

*Bentgrass is only moderately tolerant of Drive. Use reduced rates.

28

Sulfentrazone

Carfentrazone

Triclopyr

Quinclorac

Fluroxypyr

Dicamba

MCPP

MCPA

2,4-DP

2,4-D

PRODUCTS

Clopyralid

Table 4 – Broadleaf Herbicides and Combination Products

Formula 40, Dymec, Weedone LV4, Weedar 64, LESCO A-4D, Weeddestroy AM-40, Opti-Amine, Harball, Barrage HF MCPP 4-Amine, Lescopex, Turfgro MCPP 4K, Mecomec 2.5, Mecomec 4 2 Plus 2 Banvel, Diablo, Vanquish Four-Power Plus, Super D Weedone Trimec Classic, Trimec 899, Trimec 992, Trimec LAF-637, Strike 3, Three Way Selective, Trimec Bent, Bent Selective, Triplet WS, Triplet SF, Trexsan, Mec-Amine-D, Mec Amine-BG, Trimec Plus1 Tri-Power Selective Trimec Turf Ester, Super Trimec, Brushmaster, Weed and Brush Killer Three Way Ester, Tri-ester, Tri-amine, Dissolve Weedone DPC, Turf D-DP Tri-ester II, Tri-amine II Trimec Encore Turflon Chaser, Chaser 2 Chaser Ultra Chaser Ultra 2 Cool Power, Eliminate, Horsepower Lontrel Confront Momentum Momentum FX Battleship Millenium Ultra 2, Millenium Ultra Plus1 Strike Three Ultra Tru Power Tru Power 2 Spotlight Escalade, Escalade 2, Escalade Low Odor Strike Three Ultra 3 Dismiss Surge Quicksilver Shutout Speedzone Powerzone Drive Q4 *See page 21 for the new addition called Octane.

29

Working Safely During Cold Weather With the cold weather upon us, it’s important to be mindful of the risks

Immersion foot can occur during wet or muddy conditions just

associated with the weather. Although there is no specific regulation

above freezing. If any part of the body is covered with the water or

that addresses the protection of workers from environmental cold, the

mud, it could become chronically swollen, weak and sensitive to the

end result could be very costly. Direct cold related injuries can easily

cold. Again, this can require long term treatment and continue to

be prevented and save you money. Hypothermia, frostbite, immersion

be costly to the employer.

foot and chilblain are examples of direct cold related problems. Hypothermia, for example, has a very high fatality rate. This occurs when the body’s internal temperature drops below 95°F. Hypothermia is a huge threat in frigid weather but can also strike during moderate temperatures. Frostbite occurs when skin, muscle, blood vessels and nerves freeze and form ice crystals. Blood vessels become blocked with tissue

Chilblain is another skin condition that can occur after cold exposure. The symptoms appear on the hands and can include red, swollen skin that feels hot, tender and itchy. Taking precautions during winter months can prevent cold related injuries. Train your employees on proper clothing attire and require the use of hand, foot, head and face protection in three layers. The middle

debris that causes more damage. Frostbite is often irreversible and

layer will serve as an insulator. You should also track the temperature

amputation is sometimes required. If the injured site heals, the victim

and air movement and provide warming shelters for your employees.

may suffer chronic pain or numbness, excessive sweating, abnormal skin color and joint pain. This would require long term care and can

For additional information on risks and prevention of cold related

cost you a lot of money.

injuries, contact RiskControl360° at 1-877-360-3608.

BWC Board of Directors Approves Payment Changes The Ohio Bureau of Workers’ Compensation’s (BWC) Board of Directors

premium payment to BWC for work done in other states and covered

took action to provide some Ohio employers more time to pay

by another state’s policy. Generally, the law also requires out-of-state

premiums and allow employers conducting business outside of the

employers, with employees working in Ohio, to provide workers’

state to reduce their workers’ compensation insurance premiums.

compensation coverage for their workers when they come into Ohio

The board approved a rule change for the 50/50 payment program, which enables Ohio businesses that pay online to split their yearly premiums into two payments. The change allows businesses to pay only 50 percent of their premium costs by February 28 and pay the remaining 50 percent by June 1. Second payments were previously due by May 1. 17,000 employers currently participate in the program. “We know that countless of Ohio employers are under tremendous pressure to meet all of their financial obligations,” said BWC Adminis-

to perform their duties. As a result of the rule changes, Ohio employers must report to BWC the payroll reported to the other state’s insurer. However, they are not required to pay BWC premium on the other state’s payroll. BWC will also now recognize the coverage of an out-of-state employer working in Ohio to the extent that state will honor the BWC coverage for Ohio employers temporarily working in their state. Out-of-state coverage will be honored for a period of up to 90 days.

trator Marsha Ryan. “Increased flexibility for employers in meeting their workers’ compensation obligations will provide immediate relief.”

Once employers notify BWC of their Others States coverage, they can take advantage of this law change when they file their payroll

30

The board also approved rule changes related to Senate Bill 334,

report and pay their premiums for the Jan. 1 to June 30, 2009 payroll

which went into effect in September, and allows businesses to avoid

reporting period.

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Provides preventative and curative control

More concentrated at 2 lb active ingredient/gallon

Effective on common golf course turf species including bentgrass, bluegrass and ryegrass

Will control or suppress more than 40 different annual grassy and broadleaf weeds when applied according to label directions

Effective on numerous ornamental plant species Provides long-term disease prevention Tank mix Eagle 20EW with Fore® specialty fungicide for even broader spectrum control

Non-staining Low odor May be applied with single or split application Can be mixed with Gallery® specialty herbicide for a broader preemergence combination

Dow AgroSciences Professional Turf, Ornamental and Technical Products business offers 17 high-quality insecticides, herbicides and fungicides to professionals in the golf course, lawn care, landscape, nursery and greenhouse markets. For more information on any turf and ornamental products, contact your Dow AgroSciences sales representative.

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www.powerofmore.com Dow AgroSciences has the proven solution for you to earn more on your Turf and Ornamental purchases through The Power of MORE™ program. The program is easy – the more you purchase, the more you earn. The more you earn, the greater your Bonus rebate. That’s the Power of MORE.

®™Trademark of Dow AgroSciences. State restrictions on the sale and use of Eagle 20EW and Dimension apply. Consult the label before purchase or use for full details. Always read and follow label directions.

1100-H Brandywine Blvd Zanesville OH 43701-7303 888-OTF-3445 Fax: (740) 452-2552 www.OhioTurfgrass.org

Presorted Std. US Postage PAID Columbus Ohio Permit No 7536

Return Service Requested

President Dan Walter, City of Blue Ash Golf Course Vice President Joe Enciso, Advanced Sensor Technology Treasurer Doug Gallant, Cincinnati Reds Immediate Past President Todd Voss, Double Eagle Club Director of Education Dr. John R. Street, The Ohio State University Executive Director Kevin Thompson, OTF/Offinger Management Co.

2009 OTF Board of Trustees Term Expires 2010 Mike Dietrich, John Deere Landscapes Kyle Frederick, Rattlesnake Ridge Golf Course Term Expires 2011 Jason Straka, Hurdzan/Fry Golf Course Design Term Expires 2012 Todd Dodge, Brown’s Run Country Club Ryan Gregoire, Agricultural Design, Inc. Kim Kellogg, Grasshopper Property Maintenance Don Lawrence, Midwest Turf Consultants

OSU Turfgrass Science Team HORTICULTURE AND CROP SCIENCE Dr. John Street, Dr. Karl Danneberger, Dr. David Gardner, Dr. Ray Miller, Pamela Sherratt, Deborah Holdren, Matt Williams ENTOMOLOGY Dr. Dave Shetlar, Dr. Parwinder Grewal, JoAnne Kick-Raack, Kevin Power, Dan Digman PLANT PATHOLOGY Dr. Michael Boehm Joseph Rimelspach Todd Hicks SCHOOL OF NATURAL RESOURCES Dr. Ed McCoy AGRICULTURAL TECHNICAL INSTITUTE (ATI) Dr. Daniel Voltz David Willoughby INTRAMURAL SPORTS John Mott ATHLETICS Dennis Bowsher Brian Gimbel INTERNATIONAL PROGRAMS Mike O’Keeffe

1400/0109/061

2009 OTF Officers