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Response of Tall Fescue (Festuca arundinacea) to Plant Growth Regulators and Mowing Frequency

Published online by Cambridge University Press:  12 June 2017

Billy J. Johnson
Billy J. Johnson*
Affiliation:
Dep. Agron., Univ. Ga., Ga. Stn., Griffin, GA 30223-1797
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Abstract

Mefluidide, Mon 4620, paclobutrazol plus mefluidide, and flurprimidol plus mefluidide temporarily injured and discolored tall fescue without reducing shoot density. Mefluidide at 0.43 kg ai/ha and Mon 4620 at 2.8 kg ai/ha suppressed vegetative growth of mowed grass 4 weeks while unmowed grass was suppressed for 8 weeks. Mefluidide at 0.14 kg/ha with either flurprimidol at 1.1 kg ai/ha or paclobutrazol at 1.1 kg ai/ha suppressed vegetative growth of mowed tall fescue for 5 and 6 weeks, respectively. Combination treatments also suppressed the growth of nonmowed tall fescue 8 to 10 weeks. Mowing effectively suppressed seedheads for 12 weeks when the grass was mowed at 3 and 6 weeks, while mowing only once at 4 weeks did not. Seedhead suppression was not improved with weekly mowing compared with two mowings. Mowing influenced the performance of plant growth regulators on vegetative growth and seedhead control but not plant injury, quality, or shoot density.

Keywords

Flurprimidol, a-(1-methylethyl)-a-[4-(trifluoromethoxy)phenyl]-5-primidine methanolmefluidide, N-[2,4-dimethyl-5-[[(trifluoromethyl)sulfonyl] amino] phenyl] acetamideMon 4620, N-[(acetylamino)-methyl]-2-chloro-N-2,6(diethylphenyl)acetamidepaclobutrazol, (±)-(R*R*) β-[(4-chlorophenyl)methyl]-α-(1,1-dimethylethyl)-1H-1,2,4-triazole-1-ethanoltall fescue, Festuca arundinacea Schreb. ‘Ky 31’ #3 FESARSeedhead controlflurprimidolimazethapyrmefluidideMHMon-4620paclobutrazolsulfometuronFESAR
Type
Research
Information
Weed Technology , Volume 3 , Issue 1 , March 1989 , pp. 54 - 59
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

Literature Cited

1. Bhowmik, P. C. 1987. Effects of amidochlor on shoot growth and seedhead suppression in cool-season turfgrass. HortScience 22:63–65.Google Scholar
2. Christians, N. E. 1985. Response of Kentucky bluegrass to four growth retardants. J. Am. Soc. Hort. Sci. 110:765–769.Google Scholar
3. Dernoeden, P. H. 1984. Four-year response of a Kentucky bluegrass-red fescue turf to plant growth retardants. Agron. J. 76:807–813.Google Scholar
4. Gomez, K. A., and Gomez, A. A. 1984. Statistical Procedures in Agricultural Research. John Wiley & Sons, New York.Google Scholar
5. Jagschitz, J. A. 1982. Evaluation of growth retardants in cool-season lawn turf. Proc. Northeast. Weed Sci. Soc. 36:334–335.Google Scholar
6. McCarty, L. B., DiPaola, J. M., Lewis, W. M., and Gilbert, W. B. 1985. Tall rescue response to plant growth retardants and fertilizer sources. Agron. J. 77:476–480.Google Scholar
7. Pennucci, A., and Jagschitz, J. A. 1985. The effect of growth retardants on four lawn grasses. Proc. Northeast. Weed Sci. Soc. 39:260–265.Google Scholar
8. SAS Institute. 1982. SAS Users Guide. Cary, NC.Google Scholar
9. Sawyer, C. D., Wakefield, R. C., and Jagschitz, J. A. 1983. Evaluation of growth retardants for roadside turf. Proc. Northeast. Weed Sci. Soc. 37:372–375.Google Scholar
10. Watschke, T. L. 1981. Effect of four growth retardants on two Kentucky bluegrasses (Poa pratensis L.). 1981. Proc. Northeast. Weed Sci. Soc. 35:322–330.Google Scholar