Research

Under the microscope: Pythium blight

May 20, 2013 By Karl Danneberger, Ph.D.

Pythium blight (pathogen: Pythium spp. P. aultimum, P. aphanidermatum) during hot humid weather can be a serious problem on creeping bentgrass (Agrostis stolonifera) and annual bluegrasss (Poa annua) greens and to a lesser extent bermudagrass (Cynodon dactylon). Generally, this disease ...

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A multi-site contact fungicide for dollar spot control

May 1, 2013 By Clark Throssell, Ph.D.

Mike Agnew, Ph.D., is a senior field technical manager for Syngenta Turf and Landscape. Agnew is active in the development of many of Syngenta’s plant protectants, especially fungicides. He can be reached at michael.agnew@syngenta.com. Q: Secure is new to the turf ...

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Protecting turf from the sun’s rays

May 1, 2013 By Karl Danneberger, Ph.D.

Solar radiation consists of a broad spectrum of wavelengths, from very short (cosmic rays) to very long (radio waves). Light that’s visible to the human eye makes up a narrow portion of the radiation spectrum, ranging from 380 to 775 ...

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Improve the efficacy of Tenacity for creeping bentgrass control

May 1, 2013 By Joelle Harms

By Deying Li, Ph.D. Since the launching of Tenacity (mesotrione) as a turfgrass herbicide by Syngenta in 2009, many studies have been conducted by researchers to take advantage of this unique product. One of its uses is selective control of ...

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Phosphorus fertilization effects on Poa annua

May 1, 2013 By Joelle Harms

By Beth Guertal, Ph.D., and Scott McElroy, Ph.D. Annual bluegrass (Poa annua L.) is a common and persistent winter annual weed in southern landscapes. Previous research has indicated that phosphorus (P) may affect populations of annual bluegrass. Thus, the objective ...

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Good greens in early spring

April 1, 2013 By Clark Throssell, Ph.D.

Aaron Patton, Ph.D., is an assistant professor of turfgrass science at Purdue University and devotes a portion of his research to improving golf course playing conditions. He can be reached at ajpatton@purdue.edu. Q: What can superintendents do to provide greens that ...

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