Research

Marco Schiavon, Ph.D., University of California-Riverside, discusses the effectiveness of plant growth regulators, soil surfactants and fertilizer treatment combinations to conserve water on golf course fairways. (Photo: Mike Kenna)

Product combos improve irrigation efficiency

April 2, 2020 By Marco Schiavon, Ph.D.

In California and in much of the Southwestern United States, golf courses irrigate to supplement annual precipitation for turfgrass growth. However, because of diminishing water resources and rising costs, sufficient evapotranspiration (ET) replacement may not be available during the summer ...

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Anthracnose symptoms (Photo: Mike Kaminski)

Experts’ Insights: Anthracnose

April 2, 2020 By Christina Herrick

Anthracnose is not a new problem on golf courses. In fact, a team of researchers from around the country and Canada have worked for more than 20 years to dispel anthracnose myths and promote best management practices. This research team ...

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Eggs deposited in putting green height (0.125 in.) were loose or outside plant. (Photo: Mike Kenna)

Impact of greens cutting heights on annual bluegrass weevil

April 2, 2020 By Ben McGraw, Ph.D.

The annual bluegrass weevil (Listronotus maculicollis) is the most destructive insect pest of golf course turf in eastern North America. At Penn State University, we observed putting greens are rarely damaged, yet collars adjacent to the same putting greens are ...

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Adult Chaetocnema minuta isolated from damaged perennial ryegrass

A new pest in the desert Southwest

March 11, 2020 By Adam Van Dyke, M.S., CPAg and Ben McGraw, Ph.D.

As if growing turf in the Mojave Desert (the area surrounding southeastern California, southern Nevada, southwest Utah and northwest Arizona) isn’t difficult enough, turfgrass managers in the region may be dealing with an emerging insect pest issue. Regular sampling of ...

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Experts’ Insights: Spring dead spot

March 2, 2020 By Christina Herrick

Experts weight in on how superintendents can contend with three different species of fungi that cause spring dead spot on golf courses. ...

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Moving fungicides down in soil

February 20, 2020 By Wendell Hutchens, Travis Gannon, Ph.D., Dave Shew, Ph.D., Khalied Ahmed and Jim Kerns, Ph.D.

Fungicides are the most common means of crown- and root-disease suppression, so optimizing the product is economical and beneficial to turfgrass health. ...

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