Hostname: page-component-8448b6f56d-42gr6 Total loading time: 0 Render date: 2024-04-25T05:41:06.634Z Has data issue: false hasContentIssue false
  • English
  • Français

Response of a Red Fescue-Kentucky Bluegrass Turf to Three Consecutive Annual Applications of Amidochlor, Mefluidide, and Ethephon

Published online by Cambridge University Press:  12 June 2017

Prasanta C. Bhowmik
Prasanta C. Bhowmik*
Affiliation:
Dep. Plant and Soil Sci., Univ. Massachusetts, Amherst, MA 01003
Get access Rights & Permissions [Opens in a new window]

Abstract

A red fescue (Festuca rubra L.)- Kentucky bluegrass (Poa pratensis L.) turf was treated annually with amidochlor {N-[(acetylamino)methyl]-2-chloro-N-(2,6-diethylphenyl)acetamide} at 2.2, 2.8, and 3.4 kg ai/ha, mefluidide {N-[2,4-dimethyl-5-[[(trifluoromethyl)sulfonyl] amino] phenyl] acetamide} at 0.4 kg ai/ha, and ethephon [(2-chloroethyl) phosphonic acid] at 5.6 kg ai/ha for three consecutive years. Recuperative potential of treated turfgrass was determined in the field and in a greenhouse study. Amidochlor and mefluidide treatments injured turfgrass (11 to 64%) four weeks after application. However, turfgrass recovered after eight weeks. Amidochlor at 2.8 to 3.4 kg/ha and mefluidide at 0.4 kg/ha suppressed (75 to 100%) seedhead development. Ethephon at 5.6 kg/ha was ineffective. Turfgrass recovered normally each spring after amidochlor treatments, with no delay in spring green-up. Root length, root weight, and root:shoot weight ratio of the plugs from the greenhouse study were unaffected by three consecutive annual applications of amidochlor, mefluidide, and ethephon. One annual spring application of amidochlor, mefluidide, and ethephon for three consecutive years caused no adverse effects that would limit their use on red fescue-Kentucky bluegrass turf.

Keywords

Festuca rubraPoa pratensismefluidideethephongrowth retardantsroot recuperative potentialgrowth regulatorseedhead suppression
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 35 , Issue 1 , January 1987 , pp. 95 - 98
Copyright
Copyright © 1987 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Bhowmik, P. C. 1984. Mon 4621 and MON 4622: A new growth retardant for cool season turfgrasses. Abstr. Weed Sci. Soc. Am. Pages 33–34.Google Scholar
2. Bhowmik, P. C. 1985. Turfgrass growth and seedhead suppression by means of a new plant growth retardant. Pages 735–744 in Lemaire, F., ed. Proc. 5th Int. Turfgrass Res. Conf., Avignon, France.Google Scholar
3. Christians, N. E. 1985. Response of Kentucky bluegrass to four growth retardants. J. Am. Soc. Hortic. Sci. 110(6):765–769.Google Scholar
4. Dernoeden, P. H. 1982. Effects of growth retardants applied three successive years to a Kentucky bluegrass turf. Proc. Northeast. Weed Sci. Soc. 36:336–343.Google Scholar
5. 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
6. Elkins, D. M., Vandeventer, J. W., and Briskovich, M. A. 1977. Effect of chemical growth retardants on turfgrass morphology. Agron. J. 69:458–461.CrossRefGoogle Scholar
7. Jagschitz, J. A., Stich, J. D., and Wakefield, R. C. 1978. Effect of growth retardants on cool season lawn grasses. Proc. Northeast. Weed Sci. Soc. 32:319–327.Google Scholar
8. Morre, D. J. and Tautvydas, K. J. 1986. Mefluidide-chlorsulfuron-2,4-D surfactant combinations for roadside vegetation management. J. Plant Growth Regul. 4:189–201.Google Scholar
9. Petrovic, A. M., White, R. A., and Kligerman, M. 1985. Annual bluegrass growth and quality as influenced by treatments of growth retardants and wetting agents. Agron. J. 77:670–674.CrossRefGoogle Scholar
10. Steele, R.G.D. and Torrie, T. H. 1980. Principles and procedures of statistics. 2d ed. McGraw-Hill Book Co., New York. 683 pp.Google Scholar
11. Watschke, T. L. 1976. Growth regulation of Kentucky bluegrass with several growth retardants. Agron. J. 68:787–791.Google Scholar
12. Watschke, T. L. 1985. Turfgrass weed control and growth regulation. Pages 63–80 in Lemaire, F., ed. Proc. 5th Int. Turfgrass Res. Conf., Avignon, France.Google Scholar
13. Wehner, D. J. 1980. Growth regulation of Kentucky bluegrass and tall fescue. Proc. Northeast. Weed Sci. Soc. 34:382–388.Google Scholar
14. Welterlen, M. S. and Nash, A. S. 1984. Effects of Mon 4621 and 4623 on Kentucky bluegrass and tall fescue turf. Proc. Northeast. Weed Sci. Soc. 38:307–308.Google Scholar
15. White, D. B., Heng, D., Bailey, T. B., and Foote, L. 1969. Chemical regulation of growth in turfgrass. Pages 481–489 in Proc. First Int. Turfgrass Res. Conf. Sports Turf Inst., Bingley, Yorkshire, U.K. Google Scholar
16. Younger, V. B. and Nudge, F. J. 1974. Growth retardant effects on various grass tissues and organs. Pages 458–462 in Roberts, E., ed. Proc. Second Int. Turfgrass Res. Conf. Am. Soc. Agron. Crop Sci. Soc. Am., Madison, WI.Google Scholar