Research

A new index for sodicity risk assessment of irrigation water

Golf courses with poor quality irrigation water must worry about sodium accumulation in soil. Sodium adsorption ratio (SAR) is the primary criterion of estimating sodium hazard of irrigation waters. However, SAR has been shown to underestimate the risk of sodium ...
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Winter bermudagrass overseeding: Does it hurt or help?

Bermudagrass (Cynodon dactylon) is the choice for golf course fairways and tees in the South and in the Transition Zone because it tolerates close mowing (less than 3/4 inch) and forms a dense, durable and persistent turf. One of the ...
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Invisible intruders

March 26, 2018 By
In the summer of 2015, Mark Newton, CGCS at Canyon Farms Golf Club in Lenexa, Kan., was worried he might lose his job. He and his two assistant superintendents were spot-watering greens up to five times a day. His greens ...
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Hydrocarbon machine fluid injury on greens: What do we know?

March 26, 2018 By
Motorized turfgrass management equipment uses hydrocarbon-based machine fluids, including fuels, lubricants and hydraulic oils. Leaks of these machine fluids injure turf, especially on greens (Photo 1). The most pronounced visual symptom of machine-fluid injury is an area of turf exhibiting ...
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Spring bulbs add color to dormant warm-season turf

March 26, 2018 By and
Warm-season turfgrasses in the Transition Zone can go dormant for up to six months of the year. Early-spring bulbs add color to dormant lawns, yet their persistence in the turfgrass environment largely is unknown. In addition to aesthetics, flowering bulbs ...
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Demystifying Pythium diseases of golf course turfgrasses

February 26, 2018 By and
Pythium diseases are exceptionally important in turfgrass management. Yet, these diseases are oversimplified in how they are presented in the literature and commonly confused with one another. For example, in the “Compendium of Turfgrass Diseases,” Pythium diseases are lumped together ...