Less Mowing And More Rolling Benefit Poa annua Greens

By Pat Gross, director, Southwest Region
August 4, 2011

Courses in California are seeing positive results on Poa annua greens by reducing mowing and increasing rolling frequency to six times per week 

During recent visits in California, very positive results have been observed at courses that adopt a slightly different protocol for managing Poa annua putting greens – less mowing and more rolling.  Oregon State University Researchers Golembiewski, Blankenship and McDonald have shown that rolling greens daily and mowing four days per week produced better green speed than mowing daily and rolling on a frequency of only three days per week.  California superintendents who use the Oregon State protocol are seeing healthier turf, improved surface quality, and no significant difference in speed on the days the greens are rolled only.

Although many superintendents roll greens two or three times per week in combination with mowing, they have been cautious about increasing the rolling frequency due to concerns about increased soil compaction and additional wear caused by rolling equipment on the edges of greens.  So far, the superintendents who use this new protocol have not seen any detrimental effects with the increased rolling frequency and have been very pleased with the appearance and playing quality of the greens.

As with any new product or practice, we recommended that you test the procedures on a small scale and evaluate the results.  Here are a few key points to consider, based on conversations with superintendents using this new protocol:

  •  
  •  
    • Continue to make routine applications of the growth regulator product trinexapac-ethyl (Primo MAXX, T-Nex) to maintain a balanced growth rate.
    • Roller operators should be very careful when changing direction or turning the machine to avoid abrasion and wear on the edges of greens.
    • Rotate the direction of rolling as much as possible to prevent wear damage.

     

    Source: Pat Gross, pgross@usga.org and 714-542-5766

     

    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