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2023 Summer Turfgrass Field Day

Thursday - August 31, 2023 

Morning (8:00 am to 12:30 pm) Field Day and Lunch, OSU Lewis-Brown Horticulture Farm, 33329 Peoria Rd, Corvallis, OR, 97331

Afternoon (1:00 to 6:00 pm): Jason Oliver Golf Tournament and Dinner at Trysting Tree Golf Course 

Registration and Dinner is FREE for all attendees 

Please RSVP to alec.kowalewski@oregonstate.edu 

Presentations

Invasive Species Alert (European Chafer)

Pest Management Seminar

Fungicide Alternatives

Extension Bulletins

Weed Management: Pacific Northwest Pest Management Handbooks

Insects: Pacific Northwest Pest Management Handbooks

Managing Microdochium Patch in Pacific Northwest Turfgrass

Irrigation Rates and Frequencies for Western and Eastern Oregon Turfgrass

Fungicide Rotation Program for Microdochium Patch 

Anthracnose Control in the Pacific Northwest

Microdochium patch management without fungicides

Microdochium patch control alternatives

Annual Bluegrass, Poa annua L. (Cook, 2008)

Trading one problem for another: Sulfur for One

Research Publications

Comparing Methods to Quantify Cover in Turfgrass Research

Using survey results to direct future extension efforts in annual bluegrass management

High soil carbon sequestration rates persist several decades in turfgrass systems: a meta-analysis

Carbon Sequestration in Turfgrass–Soil Systems

Analyzing golf course pesticide risk across the US and Europe—The importance of regulatory environment

Advances in managing organic matter in turfgrass ecosystems

Iron sulfate and phosphorous acid affect turfgrass surface pH and Microdochium patch severity on annual bluegrass

Developing and implementing an integrated weed management program for herbicide resistant Poa annua in turfgrass

First report of Pyricularia grisea causing gray leaf spot of perennial ryegrass (Lolium perenne L.) in Oregon

Nitrogen Fertility Rates Affecting Weed Population Dynamics in a Perennial Ryegrass Stand in Western Oregon

Irrigation Frequen Optimal Fine Fescue Mixture Seeding Dates in the Northern United States

Effects of Nitrogen, Phosphorus and Potassium Rates on Microdochium Patch

Integrated Pest Management Effects on Weed Populations Managed Without Herbicides in the Pacific Northwest

Estimating economic minimums of mowing, fertilizing, and irrigating turfgrass

A justification for continued management of turfgrass during economic contraction

Comparing rates of mineral oil, sulfur, and phosphorous acid on Microdochium patch suppression and turfgrass quality

Suppression of Microdochium patch using rotations of mineral oil, sulfur, and phosphorous acid

Evaluation of selected fungicides for control of Microdochium nivale on annual bluegrass in western Oregon, 2019-2020

Evaluation of selected fungicides for control of Colletotrichum cereale on annual bluegrass in western Oregon, 2019

Evaluation of fungicides and fertilizers for control of Colletotrichum cereale on annual bluegrass in western Oregon, 2019

Adding a Late Fall Application of Proxy (Ethephon) Before Two Traditional Spring Applications Improves Seedhead Control of Annual Bluegrass

Frequent soil surfactant applications influence anthracnose on an annual bluegrass research green.

Combinations of rolling, mineral oil, sulfur, and phosphorous acid affect Microdochium patch severity.

The effects of iron sulfate heptahydrate water carrier volumes on Microdochium patch suppression and turfgrass quality.

The Influence of Iron Sulfate Application Interval on the Suppression of Microdochium Patch on an Annual Bluegrass Research Green in Western Oregon.

Rolling and Biological Control Products Affect Microdochium Patch Severity on an Annual Bluegrass Putting Green

Evaluation of fungicides, phosphites, and nutrients for the control of Anthracnose on annual bluegrass in western Oregon, 2018

Evaluation of fungicide programs for the control of Anthracnose on annual bluegrass in western Oregon, 2018

Winter Foot Traffic on an Annual Bluegrass Putting Green in Western Oregon

Effects of Fungicides on Leaf Spot in Western Oregon, 2016.

Effect of fungicides applied at reduced rates on Microdochium patch in western Oregon, 2017.

Evaluation of winter fertility practices in combination with simulated traffic in order to determine their effects on the suppression of Microdochium patchand turfgrass recovery on annual bluegrass in western Oregon, 2013-2014

Evaluation of fungicide alternatives or the control of Microdochium patch on annual bluegrass in western Oregon, 2013-2014

Evaluation of fungicides for preventative control of gray snow mold in central Oregon, 2010–2011

Evaluation of fungicide programs for the control of anthracnose on annual bluegrass in western Oregon, 2015

Evaluation of fungicides for preventative control of Microdochium patch on annual bluegrass in western Oregon, 2016

Videos

2022 OSU Winter Field Day Video

2021 OSU Winter Field Day Videos

2020 OSU Turf Field Day Videos

OSU Turfgrass Field Trials

Turfgrass Hotline with Clint Mattox: Pacific NW Update

Update on what's new in Microdochium patch control

OSU Partnership with Trysting Tree Golf Club in Corvallis, OR

Clint Mattox Discusses Microdochium Patch Mangement with Frank Rossi

Fall 2016 Fungicide Alternative Update – OSU

The Long Game - reducing pesticides on golf courses

Fine Fescue as a Putting Surface (GCSAA TV)

Tall Fescue on Golf Courses (GCSAA TV)

Tod's Turf Tips

Professional and Continuing Education Turfgrass Management Program

Professional and Continuing Education Turfgrass Management Program

Whether you work for a lawn care company, manage an athletic field, landscape at a city park, work at a golf course or just want the best lawn on your block, our turfgrass management program can help you succeed.  This program is also great for anyone interested in a profession that deals with lawn care. If you work for a hardware or lawn care store and field customer questions or consult with landscape architects, this course will give you the language, knowledge and skills needed to succeed.

List of Courses 

 

Publications

2008 Evaluation of Efficacy of Citrus Oil, Worry Free Moss and Algae Control, Garden Safe Moss and Algae Killer, and Lilly Miller Moss-Out Applications to Control Lawn Moss
July 1, 2008

Oregon State University; Dr. Robert Golembiewski, Assistant Professor; Tom Cook, Associate Professor; Brian McDonald, Research Assistant; Final Report; July 31, 2008 (Updated 9/8/10)

Turfgrass Seeding Recommendations for the Pacific Northwest
December 1, 2010

A PACIFIC NORTHWEST EXTENSION PUBLICATION • PNW299

Cover Image

Washington State University • Oregon State University • University of Idaho

1995 Annual Student Field Day
May 23, 1995

Reports from the 1995 Annual Student Field Day.

*The following is a slideshare presentation.  Click the left or right arrows to navigate through the presentation, or click "full" to view the presentation in full-screen.

1987 OSU Turf Trials
January 1, 1987

Reports from the 1987 OSU Turf Trials

*The following is a slideshare presentation.  Click the left or right arrows to navigate through the presentation, or click "full" to view the presentation in full-screen.

1989 Annual Student Field Day
May 23, 1989

Reports from the 1989 Annual Student Field Day.

*The following is a slideshare presentation.  Click the left or right arrows to navigate through the presentation, or click "full" to view the presentation in full-screen.

1985 OSU Turf Trials
January 1, 1985

Reports from the 1985 OSU Turf Trials

*The following is a slideshare presentation.  Click the left or right arrows to navigate through the presentation, or click "full" to view the presentation in full-screen.

2007 Evaluation of timing and number of fungicide applications for control of Anthracnose on annual bluegrass putting turf
December 21, 2007

Introduction

The first goal of this trial was to evaluate the effects of timing and number of applications on control of anthracnose (Colletotrichum cereale) on an annual bluegrass putting green.

A second goal of this trial was to determine the minimum number of applications necessary to produce acceptable turf quality.

Materials and Methods

1991 Annual Student Field Day
May 21, 1991

Reports from the 1991 Annual Student Field Day.

*The following is a slideshare presentation.  Click the left or right arrows to navigate through the presentation, or click "full" to view the presentation in full-screen.

1984 OSU Turf Trials
January 1, 1984

Reports from the 1984 OSU Turf Trials

*The following is a slideshare presentation.  Click the left or right arrows to navigate through the presentation, or click "full" to view the presentation in full-screen.

2007 Evaluation of Fungicides and Fungicide Programs for the Control of Anthracnose on Annual Bluegrass Putting Greens

Introduction

The purpose of this trial was to evaluate the effectiveness of various fungicides and fungicide programs in controlling anthracnose (Colletotrichum cereale) on annual bluegrass putting greens.

Materials and Methods

The trial was initiated on June 26th on an annual bluegrass putting green located at Emerald Valley Golf Club in Cresswell, Oregon. Subsequent fungicide applications were applied every 3 weeks on July 18th, August 8th, August 29th, and September 19th.

1997 Annual Student Field Day
May 20, 1997

Reports from the 1997 Annual Student Field Day.

*The following is a slideshare presentation.  Click the left or right arrows to navigate through the presentation, or click "full" to view the presentation in full-screen.

Winter Brown Blight Rears Its Ugly Head

2007 Evaluation of One and Two Fall Applications of Various Herbicides for the Control of English Daisy (Bellis perennis) in Lawns
February 28, 2008

Preliminary Report
02/28/2008

Purpose

The purpose of this trial is to evaluate one and two applications of various herbicides for the control of English Daisy (Bellis perennis) growing in lawns.

Materials & Methods

2001 OSU and WSU Turfgrass Field Day
August 14, 2001

Reports from the 2001 OSU and WSU Turfgrass Field Day

*The following is a slideshare presentation.  Click the left or right arrows to navigate through the presentation, or click "full" to view the presentation in full-screen.

1992 Annual Student Field Day
May 19, 1992

Reports from the 1992 Annual Student Field Day.

*The following is a slideshare presentation.  Click the left or right arrows to navigate through the presentation, or click "full" to view the presentation in full-screen.

2007 Evaluation of 3 and 4 Week Timing Intervals of Fungicide Applications for the Control of Anthracnose on Annual Bluegrass Fairways
February 7, 2008

Final Report - February 7, 2008

Introduction

The purpose of this trial was to evaluate different timing intervals of fungicide applications necessary to control anthracnose (Colletotrichum cereale) on annual bluegrass fairways. Three products were evaluated combined with and without Daconil Ultrex: Cleary’s 3336, Cleary’s 3336 Plus, and Banner Maxx.

2003 OSU and WSU Turfgrass Field Day
August 12, 2003

Reports from the 2003 OSU and WSU Turfgrass Field Day.

*The following is a slideshare presentation.  Click the left or right arrows to navigate through the presentation, or click "full" to view the presentation in full-screen.

1993 Annual Student Field Day
May 18, 1993

Reports from the 1993 Annual Student Field Day.

*The following is a slideshare presentation.  Click the left or right arrows to navigate through the presentation, or click "full" to view the presentation in full-screen.

2005 OSU and WSU Turfgrass Field Day
August 9, 2005

Reports from the 2005 OSU and WSU Turfgrass Field Day

*The following is a slideshare presentation.  Click the left or right arrows to navigate through the presentation, or click "full" to view the presentation in full-screen.

1986 Annual Student Field Day
May 29, 1986

Reports from the 1986 Annual Student Field Day

*The following is a slideshare presentation.  Click the left or right arrows to navigate through the presentation, or click "full" to view the presentation in full-screen.

1988 OSU Turfgrass Field Day
January 1, 1988

Reports from the 1988 Turfgrass Field Day.

*The following is a slideshare presentation.  Click the left or right arrows to navigate through the presentation, or click "full" to view the presentation in full-screen. 

Making Sense of All the Post Emergent Herbicide Options in Turf
December 17, 2013

Overview of the presentation by Brian MacDonald

  • Making sense of all the Choices
    • Review the “standard” 3 – way mixes
    • Look at “new kids” on the block
    • Review “alternative” herbicide mixes
  • Review the common weeds and match the herbicides to the weeds.
  • Maximizing weed kill – other factors.
  • Go through a few scenarios.
Golf Economic Impact
October 28, 2010

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.

2010 Evaluation of Fungicides for the Control of Dollar Spot on a Colonial Bentgrass/Annual Bluegrass Fairway
March 7, 2011

Introduction

The purpose of this trial was to evaluate the effectiveness of repeated applications of various formulations of chlorothalanil at two rates, Tourney 50, and two fungicide rotations in controlling dollar spot (Sclerotinia homoeocarpa) on a colonial bentgrass (‘Bardot’)/annual bluegrass fairway.

Management of Microdochium Patch in the PNW
November 1, 2014
Ten years of research into microdochium patch disease.
Comparing Different Fungicides for the Control of Microdochium Patch
The purpose of this trial was to evaluate the effectiveness of various fungicides in controlling Microdochium patch on a bluegrass green.
2012 Evaluation of Syngenta Fungicides and Fungicide Rotation Programs for the Control of Anthracnose
October 4, 2012
The purpose of this trial was to evaluate the effectiveness of various fungicides and fungicide rotations in controlling anthracnose (Colletotrichum cereale) and maintaining plot quality on an annual bluegrass (Poa annua) putting green.
2012 Evaluation of Fungicides and Fungicide Rotation Programs for the Control of Anthracnose
September 21, 2012
The purpose of this trial was to evaluate the effectiveness of various fungicides and fungicide rotations in controlling anthracnose (Colletotrichum cereale) and maintaining plot quality on an annual bluegrass (Poa annua) putting green.
Microdochium Patch Fungicide Control Strategies
August 15, 2010

Avoiding Buildup of Resistant Fungi

  • Most failures are probably not due to fungal resistance to fungicides.
     
  • Fungal resistance is most likely to develop where you over use systemic fungicides and don’t alternate modes of action.

    Examples in the PNW on Microdochium Patch: Clearys 3336, Chipco 26GT, and Heritage.
     
  • Pathologists have numerous theories on the best strategies for managing fungicides to avoid resistance.
2010 Evaluation of Fungicides for the Control of Anthracnose on an Annual Bluegrass Putting Green
January 5, 2011

Introduction

The purpose of this trial was to evaluate the effectiveness of various fungicides and fungicide rotations in controlling anthracnose (Colletotrichum cereale) on an annual bluegrass putting green.

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!

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.

Efficient Lawn Irrigation in the Intermountain West
October 11, 2010

Introduction

Maintaining a healthy, aesthetically pleasing lawn depends on many variables including turfgrass species; mowing height and frequency; fertilization; and insect, disease, and weed control. Proper irrigation, despite being one of the most important factors in maintaining a healthy lawn, is the most often overlooked variable in lawn care (figure 1).

2008 Evaluation of Efficacy of Citrus Oil, Worry Free Moss and Algae Control, Garden Safe Moss and Algae Killer, and Lilly Miller Moss-Out Applications to Control Lawn Moss
May 27, 2008
Oregon State University; Dr. Robert Golembiewski, Assistant Professor; Tom Cook, Associate Professor; Brian McDonald, Research Assistant; Final Report; May 27, 2008 (updated 9/8/10)
2008 Bentgrass Tolerance to Citrus Oil, Worry Free Moss and Algae Control, Garden Safe Moss and Algae Killer, and Lilly Miller Moss-Out Applications to Control Lawn Moss
May 1, 2008
Oregon State University; Dr. Robert Golembiewski, Assistant Professor; Tom Cook, Associate Professor; Brian McDonald, Research Assistant; Final Report; May 1, 2008 (Updated 9/8/10)
2008 Perennial Ryegrass and Annual Bluegrass Tolerance to Citrus Oil, Worry Free Moss & Algae Control, Garden Safe Moss and Algae Killer, and Lilly Miller Moss-Out Applications to Control Moss in Lawns
May 21, 2008
Oregon State University; Dr. Robert Golembiewski, Assistant Professor; Tom Cook, Associate Professor; Brian McDonald, Research Assistant; Final Report; May 21, 2008 (updated 9/8/10)
2008 Evaluation of Roundup Formulations for Control of Cool Season Turfgrass Species
January 12, 2009
Oregon State University; Dr. Robert Golembiewski, Assistant Professor; Tom Cook, Associate Professor; Brian McDonald, Research Assistant; Final Report; January 12, 2009 (Updated 9/8/10)
2009-2010 Evaluation of Preventative Fungicide Applications For the Control of Gray Snow Mold on An Annual Bluegrass/Kentucky Bluegrass Fairway
May 24, 2010

Objective

The purpose of this trial was to evaluate a single preventative application of various fungicides for the control of gray snow mold on a golf course fairway.

Materials and Methods

The trial was initiated on October 23rd (after the last mowing) on the 11th fairway of the Meadows Golf Course (4,160 feet elevation) located in the Sun River Resort in Sun River, Oregon, 15 miles south of Bend.

2009 Evaluation of Fungicides for the Control of Anthracnose on an Annual Bluegrass Putting Green
December 22, 2009

Introduction

The purpose of this trial was to evaluate the effectiveness of various fungicides and kelp in controlling anthracnose (Colletotrichum cereale) on annual bluegrass putting greens.

2010 Evaluation of Fungicides for the Control of Microdochium Patch on an Annual Bluegrass Putting Green
August 20, 2010

Introduction

The purpose of this trial was to evaluate the effectiveness of various fungicides in controlling Microdochium patch (Microdochium nivale) on an annual bluegrass putting green.

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, rou

2008 OSU and WSU Turfgrass Field Day
August 19, 2008

Reports from the 2008 OSU and WSU Turfgrass Field Day

*The following is a slideshare presentation.  Click the left or right arrows to navigate through the presentation, or click "full" to view the presentation in full-screen.

2009 WSU and OSU Turfgrass Field Day
January 1, 2009

Reports from the 2009 WSU and OSU Turfgrass Field Day.

*The following is a slideshare presentation.  Click the left or right arrows to navigate through the presentation, or click "full" to view the presentation in full-screen.

Practical Lawn Establishment and Renovation
April 1, 2004

This publication will take you through the steps needed to successfully plant a new lawn or renovate an old one. If you follow these steps, you will get it right the first time!

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.


http://www.kgw.com/news/local/Golf-courses-hit-hard-by-winter-82132132.html

BeaverTurf Community Site

Along with the BeaverTurf.com 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!  http://beaverturf.ning.com

New Turf Website

BeaverTurf.com - 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!

Necrotic Ring Spot on Turf in Oregon

Describes necrotic ring spot disease and methods of prevention and control.

Fertilizing Lawns
January 1, 2005

Explains how to optimize a fertilization program for a home lawn. Discusses how to select and use fertilizers, the roles of various elements (nitrogen, phosphorus, potassium, sulfur, pH, calcium, magnesium, and iron) in lawn fertilization, and the value of soil tests for each element. Provides sample calendars of necessary and optimal times for fertilizer applications for western, central, and eastern Oregon.

Fertility Management for Annual Bluegrass
October 30, 2007

Putting greens in Oregon range from 80% to almost 100 % annual bluegrass.  The reality of golf course maintenance in the Pacfic North West is that annual bluegrass will eventually dominate turf on tees, greens, and fairways.

*The following is a slideshare presentation.  Click the left or right arrows to navigate through the presentation, or click "full" to view the presentation in full-screen.