Autumn Shade

By Bob Vavrek, senior agronomist, North-Central Region
September 17, 2013

Half of this green is shaded during the morning and half receives plenty of sunlight. Note the rapid recovery of aeration holes across the portion of the green in full sun (left) versus the slow recovery of turf across the side of the green in dense shade (right).

Every course has players that, as a result of their love of trees, ignore or discount the fact that dense shade limits turf growth.  Putting green turf is affected the most due to the ultra-low height of cut that already limits the amount of leaf area exposed to sunlight. Most courses aerate greens during fall, which provides an excellent opportunity to clearly demonstrate the negative effects of shade in terms every golfer can understand.

Golfers despise aeration holes even when they understand that cultivating putting greens is necessary to maintain healthy turf. The longer it takes for holes to heal…the longer golfers will be annoyed. These images taken last week from different sides of the same green document the rapid recovery of aeration holes in full sun (left) versus the agonizingly slow recovery of turf across the side of the green in dense morning shade (right).

This example makes it difficult to deny the obvious impact of shade on putting greens and should provide encouragement to address tree concerns that are so often put on the back burner. It’s never too late to remove a problem tree that affects the playing surface on a green or tee and you won’t have to wait long to see better turf.

Source: Bob Vaverk (rvavrek@usga.org)

Information on the USGA’s Turf Advisory Service

Contact the Green Section Staff

Partner Links
AmEx image
AmEx image
AmEx image
AmEx image
Chevron
   

The USGA and Chevron have committed to using the game of golf to encourage students in science, technology, engineering and math (STEM) disciplines. This commitment has led to the creation of extensive golf-focused STEM teaching tools, and has resulted in charitable contributions to support golf-related programs through Eagles for Education™

At U.S. Open Championships the Chevron STEM ZONE™ is an interactive experience highlighting the science and math behind the game of golf through a variety of hands-on exhibits and experiments.

The partnership has also produced educational materials such as the Science of Golf video series and a nationally-distributed newspaper insert which are provided to teachers as tools to enhance existing curriculum in schools. These lessons teach the science behind the USGA’s equipment testing, handicapping, and agronomy efforts.

For more interactive experiences featuring golf-focused STEM lessons, visit the partnership homepage.


Chevron image
Rolex
   

Rolex has been a longtime supporter of the USGA and salutes the sportsmanship and great traditions unique to the game. This support includes the Rules of Golf where Rolex has partnered with the USGA to ensure golfers understand and appreciate the game.

As the official timekeeper of the USGA and its championships, they also provide clocks throughout host sites for spectator convenience.

For more information on Rolex and their celebration of the game, visit the Rolex and Golf homepage.



Rolex image
IBM
   

IBM has partnered with the USGA to bring the same technology, expertise, and innovation it provides to businesses all over the world to the USGA and golf's national championship.

IBM provides the information technology to develop and host the U.S. Open’s official website, www.usopen.com, as well as the mobile apps and scoring systems for the three U.S. Open championships. These real-time technology solutions provide an enhanced experience for fans following the championship onsite and online.

For more information on IBM and the technology that powers the U.S. Open and businesses worldwide, visit http://www.usopen.com/IBM

AmEx image
Lexus
   

Lexus is committed to partnering with the USGA to deliver a best-in-class experience for the world’s best golfers by providing a fleet of courtesy luxury vehicles for all USGA Championships.

At each U.S. Open, Women’s Open and Senior Open, Lexus provides spectators with access to unique experiences ranging from the opportunity to have a picture taken with both the U.S. Open and U.S. Women’s Open trophies to autograph signings with legendary Lexus Golf Ambassadors in the Lexus Performance Drive Pavilion.

For more information on Lexus, visit http://www.lexus.com/

AmEx image
American Express
   

Together, American Express and the USGA have been providing world-class service to golf fans since 2006. By creating interactive U.S. Open experiences both onsite and online, American Express enhances the USGA’s effort to make the game more accessible and enjoyable for fans.

For more information on American Express visit www.americanexpress.com/entertainment


AmEx image