Research

Are you driving fertility on one axle?

June 20, 2017 By
When time and budgets are tight, a superintendent might be tempted to choose between soil testing and more involved plant tissue analysis. Don’t. “Soil testing and plant analyses are like tandem axles under vehicles and trailers,” says Cliff Snyder, nitrogen ...

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Soil testing under the microscope

June 19, 2017 By
In the first chapter of the Soil Science Society of America’s 1990 book, “Soil Testing and Plant Analysis,” authors Peck and Soltanpour write that “Success or failure of soil testing varies depending upon the amount and quality of research data ...

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Accurate or precise?

June 19, 2017 By
When you are deciding whether or not to spray, it is important to know whether your threshold levels should be termed accurate or precise. Consider a superintendent who estimates that clover has infested more than five percent of a fairway. ...

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photo by: Luqi Li

Super Science: Managing unmellow yellow nutsedge

May 22, 2017 By , and
Yellow nutsedge is a difficult-to-control weed that increasingly is a problem on golf courses. Its yellow-green color, coarse foliage and fast growth decrease visual quality, uniformity and, in the worst case, playability. Yellow nutsedge is a perennial that reproduces primarily ...

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Clark Talks Turf: Digging deep into fraze mowing

May 2, 2017 By
Brian Whitlark is a USGA agronomist in the West Region. Brian conducts course consulting visits, writes for USGA publications and is a conference speaker. Brian has observed several golf courses using fraze mowing to improve their turf. You may reach ...

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Nematodes in southern turfgrasses

May 2, 2017 By
Nematodes have been recognized as significant pests of turfgrasses in the South for more than 60 years, corresponding with increased U.S. economic vitality after World War II and heightened interest in golf. That heightened interest added dollars to promote better ...

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