Hostname: page-component-76fb5796d-25wd4 Total loading time: 0 Render date: 2024-04-26T13:41:08.145Z Has data issue: false hasContentIssue false
  • English
  • Français

Control of Annual Bluegrass (Poa annua) in Kentucky Bluegrass (Poa pratensis) Turf with Linuron

Published online by Cambridge University Press:  12 June 2017

J. Christopher Hall  and
C. Ken Carey
J. Christopher Hall
Affiliation:
Dep. Environ. Biol., Univ. Guelph, Guelph, Ont. N1G 2W1, Canada
C. Ken Carey
Affiliation:
Dep. Hortic. Sci., Univ. Guelph, Guelph, Ont. N1G 2W1, Canada
Get access Rights & Permissions [Opens in a new window]

Abstract

Effects of linuron on annual bluegrass control and Kentucky bluegrass cultivar tolerance were studied in field and growth chamber experiments. In controlled environment experiments, linuron at 0.06, 0.12, 0.25, 0.50, and 0.75 kg ai ha-1 was applied to pure stands of annual bluegrass and eight Kentucky bluegrass cultivars. Linuron at the two highest rates controlled annual bluegrass, reducing the clipping dry weight by more than 85% 4 wk after treatment, and by 65 to 92% 6 wk after treatment. Growth of Kentucky bluegrass was reduced with the most severe reduction occurring 2 wk after linuron application. All cultivars exhibited normal growth 8 wk after treatment. In field experiments, linuron at rates from 1.5 to 2.0 kg ai ha-1 controlled annual bluegrass in old (> 5 yr) Kentucky bluegrass stands, and in 16 cultivars of 1-yr and 2-yr-old Kentucky bluegrass stands, with little or no damage. At rates of 1.5, 2.0, and 2.5 kg ai ha-1 linuron, damage to newly seeded cultivars was moderate to severe. However, 6 to 7 wk after linuron application to newly seeded cultivars, stand density and turf quality were equivalent to untreated checks.

Keywords

Linuron, N′-(3,4-dichlorophenyl)-N-methoxy-N-methylureaannual bluegrass, Poa annua L. # POAANKentucky bluegrass, Poa pratensis L. # POAPRPostemergence controllinuronPOAANPOAPR
Type
Research
Information
Weed Technology , Volume 6 , Issue 4 , December 1992 , pp. 852 - 857
Copyright
Copyright © 1990 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. Cooper, R. J., Henderlong, J. R., and Street, J. R. 1984. Annual bluegrass management—getting to the root of the problem. Golf Course Manage. 52(3):39, 41, 43.Google Scholar
2. Goss, R. L. 1964. Preemergence control of annual bluegrass (Poa annua L.). Agron. J. 56:479–481.CrossRefGoogle Scholar
3. Ingratta, R. G., Stephenson, G. R., and Switzer, C. M. 1979. Selective control of annual bluegrass in Kentucky bluegrass turf with linuron. Can. J. Plant. Sci. 59:469–473.CrossRefGoogle Scholar
4. Jacquemin, P. L. and Henderlong, P. R. 1976. Selective control of Poa annua in Kentucky bluegrass. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 30:345–350.Google Scholar
5. Jagschitz, J. A. 1979. Annual bluegrass control in Kentucky bluegrass turf with herbicides. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 33:308–313.Google Scholar
6. Jagschitz, J. A. 1982. Postemergent control of annual bluegrass and bentgrass in Kentucky bluegrass turf. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 36:326–331.Google Scholar
7. Warwick, S. I. 1979. The biology of Canadian weeds. 37. Poa annua L. Can. J. Plant Sci. 59:1053–1066.CrossRefGoogle Scholar