Research

Visible differences in turf injury at seven days after application. (Photo: Ross Braun, Ph.D.)

Ryegrass injury and recovery from human insect repellent

Superintendents commonly observe turfgrass injury from human insect repellent (bug spray) overspray on human skin and clothing. The injury most commonly occurs as an outline shape of unaffected footprints with damaged surrounding turf. This injury results in unacceptable turf quality. ...
Bermudagrass cover (Photos: Gregg Munshaw)

Nitrogen and sprigging rate effects on Latitude 36 bermudagrass establishment

Bermudagrass (Cynodon sp.) is widely grown throughout the southern United States for recreational and aesthetic purposes. Bermudagrass provides a heat- and drought-tolerant turfgrass that exhibits vigorous growth and good wear tolerance. Bermudagrass also is popular on golf courses because of ...
Dark purple fairway due to Meyer zoysiagrass seedhead production (Photo: Aaron Patton)

Suppressing Meyer zoysiagrass seedheads

Zoysiagrass (Zoysia spp.) is on about 25,000 acres of golf course turf in the United States. It provides golfers with an excellent ball lie when used in fairways, and its wear and divot tolerance, low nutritional requirement and tolerance to ...
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Sand-capped fairway (Photo: Bert McCarty, Ph.D.)

Sand-capping depth based on moisture retention curves

November 12, 2018 By and
Sand capping is done on golf course fairways and sports fields that drain poorly in an attempt to allow play to resume quickly after rainfall. Sand capping involves applying a relatively thick layer of sand to the top of an ...
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The bottom portion of the stainless steel lysimeter (Photo: Kevin Frank, Ph.D.)

Twenty years of measuring nitrogen leaching from turfgrass

October 15, 2018 By
Turfgrass systems require a diversity of inputs to achieve a functional, high-quality surface. Among inputs that influence performance and quality, fertilizer applications are some of the most critical. Although fertilization is essential, fertilization practices continue to be scrutinized for the ...
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University of Arizona Cooperative Extension demonstration field day (Photo By: Worku Burayu)

Native grasses, groundcovers with turf removed

September 17, 2018 By
To reduce water use, golf courses are reducing turf in non-play areas by xeriscaping, or incorporating desert-adapted plants. There’s a need for salt-tolerant grasses and ornamental plants in the Southwest United States because of high-salinity soils and poor water quality. ...
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