Full TGIF Record # 251740
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DOI:10.21273/HORTSCI.49.11.1449
Publication Type:
i
Refereed
Author(s):Jones, Patrick A.; Brosnan, James T.; Breeden, Gregory K.; Vargas, Jos茅 J.; Horvath, Brandon K.; Sorochan, John C.
Author Affiliation:Department of Plant Sciences, University of Tennessee, Knoxville, TN
Title:Effect of preemergence herbicides on hybrid bermudagrass divot resistance and recovery
Section:Turf management
Other records with the "Turf management" Section
Source:HortScience. Vol. 49, No. 11, November 2014, p. 1449-1453.
# of Pages:5
Publishing Information:Alexandria, Virginia: American Society for Horticultural Science
Keywords:TIC Keywords: Cynodon dactylon x Cynodon transvaalensis; Digitaria; Dithiopyr; Divot recovery; Herbicide evaluation; Herbicide rates; Herbicide timing; Indaziflam; Oxadiazon; Pendimethalin; Preemergence herbicides; Prodiamine; Weed control
Abstract/Contents:"Divoting is a common occurrence on golf courses and athletic fields. Research was conducted at the University of Tennessee Center for Athletic Field Safety (Knoxville, TN) during 2012-13 evaluating the effects of preemergence (PRE) herbicide applications on hybrid bermudagrass [C. dactylon (L.) Pers. 脳 C. transvaalensis Burtt-Davy, cv. Tifway] divot resistance and recovery. Plots were subjected to the factorial combination of seven herbicide treatments (indaziflam at 35 and 52.5 g路 ha-1; prodiamine at 840 g路 ha-1; pendimethalin at 3360 g路 ha-1; dithiopyr at 560 g路 ha-1; oxadiazon at 3360 g路 ha-1; non-treated control) and three divot timings [1, 2, and 3 months after herbicide treatment (MAT)]. Rates were based on label recommendations for preemergence crabgrass (Digitaria spp.) control. Herbicides were applied on 15 Mar. 2012 and 2013. Divots were generated using a weighted pendulum apparatus designed to impart 531 J of impact energy to the turf sward with a golf club. Divot resistance was quantified by measuring divot volume at each timing while divot recovery was quantified by measuring turf cover in the divot scar using digital image analysis. All herbicide-treated plots produced divots with volumes 鈮 the non-treated control. In 2013, volumes were greater for divots produced 1 MAT (215 cm3) than those created 2 MAT (191 cm3) or 3 MAT (157 cm3). No differences in divot recovery were detected as a result of herbicide treatment in either year. Under the conditions of this study, applications of PRE herbicides at labeled rates did not affect divot resistance or recovery."
Language:English
References:26
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Jones, P. A., J. T. Brosnan, G. K. Breeden, J. J. Vargas, B. J. Horvath, and J. C. Sorochan. 2014. Effect of preemergence herbicides on hybrid bermudagrass divot resistance and recovery. HortScience. 49(11):p. 1449-1453.
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DOI: 10.21273/HORTSCI.49.11.1449
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