Golf Course Management

JAN 2018

Golf Course Management magazine is dedicated to advancing the golf course superintendent profession and helping GCSAA members achieve career success.

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Page 129 of 219

120 GOLF COURSE MANAGEMENT 01.18 The RESEARCH SAYS • We tested 11 PGR and herbicide treatments on bermudagrass roughs to determine whether their use could effectively reduce turf height and seedhead cover. • Finale caused more severe damage initially, but the turf recovered quickly. Products containing imazapic caused delayed damage that lasted longer. • Treatments with Primo and the high rate of Legacy produced the lowest turf height. • PGRs and low rates of herbicides show potential for reducing mowing frequency in roughs. Additional research would help identify means of reducing turf phytotoxicity. totoxicity by adding low rates of nitrogen, iron or, possibly, a biostimulant. An additional cost-saving step could possibly involve boom - less (flood-type) sprayers, assuming treatment coverage remains acceptable. These sprayers would eliminate the need for a rigid boom and allow faster application. Literature cited 1. Crownover, M. 2010. How many acres are needed for an 18-hole golf course? Golfweek (http://golftips. course-1812.html) Accessed Dec. 4, 2017. 2. McCarty, L.B. 2011. Best golf course management practices. 3rd edition. Prentice Hall, Upper Saddle River, N.J. 3. Ross, M., and D. Childs. 1996. Herbicide mode- of-action summary. Purdue University Cooperative Extension Service, Publication WS-023-W. (www. Accessed Nov. 28, 2017. 4. Sherratt, P. 2013. All about plant growth regulators. SportsField Management (www.sportsfieldmanage - growth-regulators/) Accessed Nov. 28, 2017. 5. Totten, F.W., J.E. Toler and L.B. McCarty. 2006. 'Tif - way' bermudagrass growth regulation with the use of % seedhead cover Figure 5. Bermudagrass seedhead cover (%) of plots treated with various PGR and herbicide products four weeks after initial application. Bars designated with different letters are statistically different. A EFG EFG FG CDE BCD BC D-G BCD B DEF G Seedhead cover (%) trinexapac-ethyl and flurprimidol. Weed Technology 20(3):702-705. Philip Brown ( is a graduate stu - dent; Don Garrett, CGCS, is superintendent of the Walker Course; and Bert McCarty is professor of turfgrass sci - ence and management at Clemson University, Clemson, S.C.

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