BeaverTurf News

Josh Lewis, Turf Management graduate and course superintendent, helps get Chambers Bay ready for the U.S. Open

UNIVERSITY PLACE, Wash. — Tweaks. Yeah, there were plenty of those made to Chambers Bay, which in six months will play host to the Pacific Northwest’s first-ever U.S. Open. But with the tweaks in place, the fescue growing and the between-the-ropes planning sewn up, getting Chambers Bay ready for the scrutiny that will come in June still requires intense daily attention.

Read more in Sports Illustrated »

Mattox Explores Effective Alternatives to Fungicides

The following links highlight Graduate Assistant Clint Mattox’s efforts to find effective “Alternatives to Traditional Fungicides”.  As you will see Clint’s work is generating a lot of excitement…


2017 Oregon State Microdochium Patch Research Update.pdf3.54 MB

SAFE Scholarship and Grant

STMA’s charity, The SAFE Foundation, is ready to award money for the SAFE Scholarships and the Gary Vanden Berg Internship Grant. It is an easy process to apply and the awards can be thousands of dollars. SAFE will not award a scholarship for less than $1,250 to any student and the Gary Vanden Berg Internship Grant is $1000. The deadline to apply for both awards is Oct. 15. Read the requirements for SAFE Scholarships and for the Gary Vandenberg Internship Grant and how to send your applications for judging (reminder: all materials must be included in one package delivered to STMA headquarters).  If you have questions about the SAFE Scholarships, please contact Leah Craig.

SAFE also has $4,000 it wants to give to two colleges or universities for winning the Student Challenge. This highly competitive contest will be held Fri., Jan. 24, 2014 at the Henry B Gonzalez Convention Center in San Antonio, TX during the STMA Conference. The Study Guide is now online and we encourage you to begin to develop your teams. All student challenge competitors MUST register on line. No paper registration forms will be accepted for the challenge. You can send in a paper form to register for optional events. Contact Kristen Althouse with questions on the Student Challenge.

Thank you!
Sports Turf Managers Association

May is prime time to dethatch and aerate lawns

May is an optimum time to aerate and dethatch your lawn. 

If your lawn is made up of perennial ryegrass or tall fescue, you likely don't have to worry about thatch, said Alec Kowalewski, a turfgrass expert for the Oregon State University Extension Service.

But if it's Kentucky bluegrass or creeping bentgrass, Kowalewski advised dethatching or aerating your lawn once or twice a year in the spring and fall.

Thatch is a layer of decaying roots and stems that build up between grass and the soil. If you can see thatch on the surface of the soil, you've likely got too much, he said.

"The best way to tell if your lawn needs dethatching is to take a shovel and dig out a little piece of soil and look at whether there is thatch layer accumulation," Kowalewski said.

Read more from OSU Extension »

Comparing Different Fungicides for the Control of Microdochium Patch

Full Title: 2010-2011 Evaluation of Fungicides and Fungicide Rotations for Control of Microdochium Patch on an Annual Bluegrass Putting Green

Authors: Dr. Rob Golembiewski, Assistant Professor, Oregon State University and Mr. Brian McDonald, Research Assistant, Oregon State University

2010-11 Microdochium Patch Trial.OSU - final.pdf270.85 KB

Welcome, Dr. Kowalewski

Dr. Kowalewski received his Masters and Ph.D. from Michigan State University.  Prior to joining Oregon State University as the Turfgrass Specialist, Kowalewski taught at Abraham Baldwin Agricultural College and worked as a Research Scientist at the University of Georgia Turf Breeding Program in Tifton, Georgia.  Kowalewski has also served as a resident consultant at the 2008 Olympic Games in Beijing, China, and a Briggs & Stratton Yard Smarts expert.  Dr. Kowalewski has guest lectured on a state, national and international level and released several publications related to golf, sports and municipal turf management.  His research background includes organic weed control, sports turf management, sod production, pre and post-emergence herbicide use, golf green management, and the development of sustainable turfgrass cultivars.

Seeding new ground

It was during the summer of 2002 that Alec Kowalewski discovered his true calling. He was an undergraduate student in studio art (graphic design) at Michigan State University, and he was thinking about a career in website design after graduation.

Kowalewski had worked summers before then at MSU’s turfgrass research center, where he mowed lawns and performed other chores. But in 2002, he got to help replace the football field at Spartan Stadium, where the Michigan State University football team plays its home games.

Read more in the Gazette Times »

Fungicide Trial Evaluation Reports for 2012 Available

The 2012 Fungicide Trial Evaluation Reports for control of anthracnose have been posted to BeaverTurf. Included in the trials were fungicide rotations from Bayer, BASF, Cleary's and Syngenta including the new products, Secure, Daconil Action, Briskway, and Appear.

2012 Evaluation of Fungicides and Fungicide Rotation Programs for the Control of Anthracnose

2012 Evaluation of Syngenta Fungicides and Fungicide Rotation Programs for the Control of Anthracnose

Understanding REDOX and Why Nitrate Alleviates Black Layer

If you attended Session B of the Pest Management Seminar on Wednesday, December 7th, you heard Dr. Joe Vargas talk about black layer. He mentioned that the best way to alleviate it was to apply nitrate fertilizers (coring also helps). To understand why, see the link below to the two page article "A Primer on Soil Redox Potential" by William Berndt, PhD, who did the work while a graduate student of Dr. Vargas.

Phipps Earns National Environmental Award

Class A Golf Course Superintendent and Oregon State Alumni David Phipps has been selected by the GCSAA to receive the 2012 GCSAA President's Award for Environmental Stewardship. The reward will be presented during the 2012 GCSAA Education Conference at Celebrate GCSAA! on February 28. See the full story at:

Dr. Micah Woods, OSU Alum, Visits Corvallis

Micah Woods, 1998 OSU Alum, is the Chief Scientist of the Asian Turfgrass Center ( He recently visited OSU and gave presentations to the OSU Turf Club and Hort 314 Class. Micah shared information on turfgrass practices in Asia, internship/job opportunities, and Asian culture. Micah is just another example of our amazing OSU Turf Alumni giving back to the program.

One-Man Show

As sole turfgrass professor at Oregon State University, Rob Golembiewski does teaching, research, and extension simultaneously. It's a difficult job, but Rob manages to gracefully complete it all for the sake of the students and OSU's Turf Program. Read about his work here:

2011 OSU Turf Field Day Review

Over 100 people attended this year’s OSU Turf Field Day on Friday, September 16th. The attendees were allowed to choose between a golf course oriented track or a landscape/sports turf oriented track with each track providing 10 different research presentations. Following the field day we had 60 people play golf at Trysting Tree and return to the turf farm for a catered dinner. This year’s OSU Turf Alumni & Friends Award recipients were Pat Doran, superintendent at Trysting Tree, and Dave Phipps, superintendent at Stone Creek. Pictures from all of the day’s festivities can be viewed here.

A special thanks to all of the sponsors listed below:

Gold – Wilbur-Ellis, Wilco
Silver – Barenbrug, Pacific Sports Turf, Target Specialty Products, Tee-2-Green
Bronze – Agrium Advanced Technologies, Aquatrols, BASF, Columbia Seeds, Dow AgroSciences, Ewing, Gowan Company, Ostara, Pro-Turf Solutions, Quali-Pro, Seed Research of Oregon, Syngenta



Highland Park District Brings Back Pesticides

Poor field conditions after four years of an organic turf care program have prompted the Highland Park District to bring pesticdes back into its turf care program. See why the change was made and how the Highland Park District intends to preserve some of its organic practices:

Imprelis Injury to Trees


Imprelis is a new herbicide from DuPont™ that has shown to be a very good broadleaf weed control product. Unfortunately, across the United States there have been reports of tree damage (specifically Norway Spruce and White Pine) resulting from spring applications. Below is an outstanding summary written by Dr. Pete Landschoot from Penn State University.


DuPont™ has since released a few articles regarding the issue, including an article detailing strategies when caring for trees under stress, and a letter regarding DuPont's™ intentions to help remedy any issues experienced through the use of its product.

Tree Care:

Response Letter:

Winter Brown Blight Rears Its Ugly Head

The photos on this page, taken at Lewis-Brown Horticulture Farm in Corvallis, Oregon, show the symptoms of Winter Brown Blight (Drechslera siccans) on perennial ryegrass. Winter Brown Blight is a member of the genera Drechslera and includes Net Blotch (Drechslera dictyoides) and Melting Out (Drechslera poae). This disease used to be classified as Helminthosporium.

An older variety of perennial ryegrass was planted in early October (foreground in photo above right). The older variety was chosen because of its lack of drought tolerance in order to conduct research in 2011 with Geohumus, a soil additive for water retention. In the background of the above photograph, you can see a block of darker ryegrasses from the new NTEP trial that were planted about the same time. Two pounds of nitrogen (ammonium sulfate) per 1,000 square feet was applied in late November to both areas. The NTEP trial has dark green turf color and the older variety has an off color "lean" look to it. Upon closer inspection, you can see the Winter Brown Blight (photo at left). These photos illustrate a few points related to Winter Brown Blight. First, It is often much worse on new stands of grass. Second, some varieties are much more susceptible than others. Finally, lighter colored varieties tend to be more susceptible than darker colored varieties.

So what will we do about it? There might be a temptation to fertilize again but high nitrogen fertility levels can stimulate Melting Out (Drechslera poae) which can be much more damaging to the turf. The answer: wait until temperatures warm up and then fertilize, if needed.

2010 Anthracnose Trial

Oregon State's 2010 research trial evaluating the effectiveness of various fungicides to control anthracnose on an annual bluegrass putting green has recently been published and made available on BeaverTurf! Please click here to see the publication.

Sustainable Landscape Management

Tom Cook, retired OSU turfgrass professor, has published a new book detailing the construction and maintenance of sustainable landscapes! The book includes topics such as sustainable landscape design, how to develop an ecosystem, issues regarding the use of chemicals, and approaches for modifying existing lancescapes.  The book can be purchased from Amazon: Sustainable Landscape Management: Design, Construction, and Maintainence!

OGCSA and CSSA Presentations

Tod Blankenship, CGCS, recently presented at the Oregon Golf Course Superintendents Association (OGCSA) October chapter meeting and the Crop Science Society of America (CSSA) annual meeting held in Long Beach, CA. Both of his presentations are now available on BeaverTurf and are available for viewing below.

CSSA 2010 Presentation

The audio and video for the CSSA Presentation may be found here.

Golf Economic Impact

Oregon's Golf Economy Estimated at $1.2 Billion; Contributes More than 27,000 Jobs

Representing the Golf Alliance of Oregon (GAO), Barb Trammell, CEO of the Oregon Golf Association unveiled the results of an economic impact study at Stone Creek Golf Club in Oregon City in mid-October 2010. The research study was conducted on behalf of the Golf Alliance of Oregon, a consortium of the major trade and consumer golf associations.

"This was the first major undertaking of our alliance," noted Trammell. "We came together because it is important that we address the issues that face our industry together and with one voice.

"With the region's economy showing few signs of recovery, the state searching for solutions to its budget mess, and concerns regarding the environment and sustainability, the GAO funded a study to quantify the impact golf has in our communities. The study, conducted by SRI International of Menlo Park, Calif. was also funded in part by Golf 20/20, an initiative of the World Golf Foundation.

"In order to get the attention of decision-makers, it is important that we be able to quantify the contributions of our industry to those that may be affected," added Trammell. "The continued health and growth of the golf industry has a direct bearing on future jobs, commerce, economic development, and tax revenues for a large number of Oregon's communities and industries."

Dr. Peter Ryan, provided details on the project he led on behalf of SRI International and the World Golf Foundation. "The importance of golf in Oregon extends beyond the golf facilities themselves. With $1.2 billion of direct economic activity in 2008, the sheer size of the game of golf makes it a major industry in its own right and a significant contributor to Oregon's economy," said Ryan.

"That makes Oregon's golf industry revenues comparable in size to other important industries here including paper manufacturing ($3.7 billion), software publishing ($1.4 billion), and even the greenhouse and nursery business ($0.9 billion)."In total, Oregon's golf industry generated an economic impact of $2.5 billion, supporting nearly 27,200 jobs with $703.6 million of wage income," he said.

"Golf is an essential component for many local charities and their fundraising efforts," added Trammell. Charitable events hosted on Oregon's golf courses benefited local non-profit organizations with $28.5 million in charitable giving attributed to the game of golf.

"Our industry, including golf course owners, club managers, and golf professionals, are happy to serve as access points for fundraising by local service organizations," said Trammell, who also noted that golf is the only private-sector industry to provide free or significantly discounted fees to high school athletic programs.

Golfer supplies represented the largest golf industry segment (owing to Nike Golf's headquarters in Beaverton, Ore.) amounting to $464.6 million, followed by golf facility revenues totaling $361.7 million and golf-related hospitality and tourism at $221.8.

Real Estate also is benefited by golf. "In 2008, a tough economic year, golf-related residential construction contributed $62.2 million to the state economy, and a "golf premium" generated by sales of existing golf community homes was $11 million," noted Ryan.

Gregory T. Lyman, Environmental Programs Director for the Golf Course Superintendents Association of America discussed golf's focus on stewardship of the environment. "Golf courses provide diverse habitats for a range of wildlife, and Oregon golf courses take their environmental stewardship seriously," said Lyman. "Your state should be proud that it leads the country in the number of Certified Audubon Cooperative Sanctuaries." There are presently 19 golf course certified sanctuaries and Tetherow in Bend, Ore. is Bronze-level signature sanctuary.

About the Golf Alliance of Oregon

Led by the Oregon Golf Association, which represents the most avid golf consumers, the Golf Alliance of Oregon is comprised of the major industry associations for the region including the Oregon Golf Course Owners Association, Pacific Northwest PGA - Oregon Chapter, Oregon Golf Course Superintendents and the Club Managers of Oregon.

To download the two documents associated with the economic impact study, visit for the executive summary and for the full study.

Establishment of the Jason Oliver Memorial Scholarship

With the recent passing of Jason Oliver and the profound effect he had on his peers and the golf industry, please join us as we honor and remember him in a special way.

Jason was a person who had an unquenchable thirst for knowledge and education. He met every learning opportunity with excitement and passion. Jason wanted to be the very best in everything he pursued. His ability to rise to the challenge and excel in the classroom and the golf course (be it playing golf or working on the course) was extraordinary for a person of his age. With hard work, a positive attitude and his persistent nature, Jason put himself through college on scholarships alone. His efforts paid off as he graduated Magna Cum Laude with a 3.83 GPA.

While in school, Jason completed multiple internships at a number of high profile golf courses. These opportunities allowed Jason to receive extensive professional training from some of the most respected golf course superintendents in the country.

During his employment at Stanford, Jason continued his dedication to the golf industry by serving on the Golf Course Superintendent’’s Association of America Assistant Superintendent Committee, as well as serving as the Assistant Superintendent Director for the Northern California Chapter of the GCSAA Board of Directors.

Jason was well on his way to reaching his dream of becoming a Certified Golf Course Superintendent. He also wanted to become the youngest President in the history of the Golf Course Superintendent’’s Association of America. Unfortunately, both of these goals were tragically unfilled.


  • College of Ag Dean’’s list: 2003 2007
  • Graduation honors: Magna Cum Laude
  • USGA Green Section Intern
  • Chick Evans Caddie Scholarship
  • GCSAA –– Allan MacCurrach Scholarship
  • Trans Mississippi Turfgrass Scholarship
  • Royal Oaks Country Club –– Vancouver, WA
  • Pronghorn Golf Club –– Bend, OR
  • Cornerstone Golf Club –– Montrose, CO
  • The Olympic Club –– San Francisco, CA
  • Stanford University Golf Course –– Palo Alto, CA

 Goal: Establish the Jason Oliver Memorial Scholarship

  • In order to continue the living memory of Jason Oliver, please join us as we create an endowed scholarship in his name at the Oregon State University Foundation.
  • The minimum required to establish a perpetual scholarship is $25,000.
  • The scholarship will be awarded annually to a student in the Turf Management Program within the College of Agricultural Sciences Horticulture Department.
If you wish to contribute, please make the gift payable to ““OSU Foundation”” with Jason Oliver Memorial Scholarship on the memo line. Address: 850 SW 35th St. Corvallis, OR 97333

We look forward to your support of this scholarship and creating a lasting remembrance of Jason Oliver.

Akoni Ganir
Assistant Superintendent
Cypress Point Club
Rob Golembiewski, Ph.D.
Assistant Professor
OSU Horticulture
Ken Williams, CGCS
Stanford University Golf Course

If you have any questions please contact Jack Holpuch, Development Officer OSU Foundation at 541 737 9636 or via email at


2010 OSU Turfgrass Research Field Day

The presentations from the 2010 OSU Turfgrass Research Field Day are now available! Simply click on the name of the presentation then play the video by clicking the play icon in the middle of the video.

Congratulations to Jeremy Galvin

 The Turf Management Crew here at Oregon State University would like to congratulate Jeremy Galvin for being awarded a $750 scholarship from the Golf Course Superintendents Association of America's (GCSAA) Scholar Program. Way to go Jeremy!

Looking for a site to do a fairy ring control trial.

We are looking for a site to do a fairy ring control trial in 2011.Fairy Ring Photo  If you are having consistent problems with fairy ring and are willing to allow plots to be set up and different fungicide treatments applied, please call Brian McDonald at 541 231-1149.  The ideal site would be about 2,000 square feet with uniform fairy ring symptoms throughout.  The area could be a golf course fairway, rough, or chipping or nursery green.  Alternatively, a sports turf field or commercial or cemetary lawn could work depending on location.  The site must be within a 2 hour driving distance from Corvallis, Oregon.

BeaverTurf Community Site

Along with the website, we are also launching a BeaverTurf Community site.  An online community for Turf Professionals, the site is intended to:

  • Connect turf professionals in order to build relationships and increase networking
  • Provide a forum for collaboration, discussion, and knowledge sharing
  • Keep turf professionals up to date with the latest and greatest news, research, and resources

Check it out and sign up here

New Turf Website - the new turfgrass website from Oregon State University - is nearing completion.  We hope you like the new site and the information and resources that it provides. 

Please let us know about any bugs, errors, or other problems that you might encounter, as well as any other feedback you may have.  Thanks and happy surfing!

Rob Golembiewski interviewed about winter damage

OSU Turf Specialist Rob Golembiewski was interviewed by Channel 8 out of Portland, OR yesterday.  Click the following link to see the clip.

Reduce or Eliminate Fall Watering

As I drove into campus this morning, I noticed several sprinkler systems running.  After a week of on and off rain, day temperatures in the 70s and night temperatures in the 40s, it is time to reduce watering times and/or days or even better, turn the irrigation system off.  The turf is using very little water this time of the year and it will allow the turf to naturally harden off as the winter months approach.  An additional benefit of turning your irrigation system off is that the lack of moisture will greatly reduce the survivability of European Crane Fly eggs.  So, turn the irrigation off, save some money, and enjoy the beautiful fall!