Research

Sand-capped fairway (Photo: Bert McCarty, Ph.D.)

Sand-capping depth based on moisture retention curves

November 12, 2018 By Bert McCarty, Ph.D. and Philip Brown, Ph.D.

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 ...

Read More

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 Kevin W. Frank, Ph.D.,

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 ...

Read More

University of Arizona Cooperative Extension demonstration field day (Photo By: Worku Burayu)

Native grasses, groundcovers with turf removed

September 17, 2018 By Kai Umeda

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. ...

Read More

Treatment of iron deficiency and chlorosis

August 15, 2018 By Bill Kreuser, Ph.D.

Iron (Fe) chlorosis of Kentucky bluegrass and creeping bentgrass can be a perennial summer problem. Symptoms usually include light yellow or lime-green leaves in July and August. Scientists believe that iron chlorosis is a root dysfunction that occurs when soils ...

Read More

Intense snow mold pressure (Photo: Paul Koch)

The thin white line: Snow mold control

August 15, 2018 By Paul Koch, Ph.D

Snow mold is one of the primary diseases of golf course turf in Wisconsin, as it is in much of the northern United States. Depending on your location, snow mold can be a disease that costs tens of thousands of ...

Read More

Woman burying oats in thatch. Photos Courtsey of Megan Kennelly and Jack Fry (Figure 3B)

Don’t get overmatched: Dispatch that large patch

July 30, 2018 By Megan Kennelly, Ph.D. and Jack Fry, Ph.D.

Large patch is a fungal disease of zoysiagrass (Zoysia japonica, Z. matrella, Z. pacifica and various Zoysia hybrids) and several other warm-season grasses. This article focuses on the disease in zoysiagrass, which is becoming more popular in warm and transitional ...

Read More