Strategies for Turfgrass Renovation

Management

Practical strategies for the renovation of turfgrass, used to improve existing turf or change grass species for improved performance. The basic strategies discussed include simple overseeding, overseeding following suppression of existing turf, and complete renovation.

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

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.

2010 Evaluation of Fungicides for the Control of Anthracnose on an Annual Bluegrass Putting Green

Picture: Reserve 3.2 oz/1,000 sq. ft. 7/14/10
Picture: Renown – 2 apps applied at 2.5 fl oz/1,000 sq. ft. (7/14/10)
Picture: Fosetyl-Al + Chlorothalanil + Foursome – 2 apps applied at 4.0 + 3.2 +0
Picture: Tourney applied twice at 0.37 oz/1,000 sq. ft.
Picture: Torque 0.6 oz/1,000 sq. ft. (7/28/10)
Picture: Concert after 3 apps @ 5.5 oz/1,000 sq. ft. (7/28/10)
Picture: Reserve after 3 apps @ 3.2 oz/1,000 sq. ft. (7/28/10)
Picture: Trinity after 3 apps @ 1.0 oz/1,000 sq. ft. (7/28/10)
Picture: Untreated (7/28/10)
Picture: Honor + Revolution after 3 apps @ 1.1 + 6.0 oz/1,000 sq. ft. (7/28/10)
Picture: Torque alternated with Affirm + Spectro 90 0.60/0.9+3.0 oz/1,000 sq. ft

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!

Turfgrass Seeding Recommendations for the Pacific Northwest

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A PACIFIC NORTHWEST EXTENSION PUBLICATION • PNW299

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Washington State University • Oregon State University • University of Idaho

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

Figure 1. This healthy lawn is a result of proper cultural practices, which incl
Figure 2. Thatch is a partially decomposed organic layer that develops between t
Figure 4. Catch cans can be used to evaluate the water delivery rate of a sprink
Figure 5. Automatic irrigation systems can be used to apply water efficiently an
Figure 7. A dormant turfgrass stand (below) and an irrigated home lawn (above).
Figure 3. A tall fescue home lawn may require less water than other turfgrass sp
Figure 6. Tree roots have a much higher water requirement than home lawns.

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 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

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

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)

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

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)

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