Hostname: page-component-78c5997874-dh8gc Total loading time: 0 Render date: 2024-11-20T00:57:03.451Z Has data issue: false hasContentIssue false
  • English
  • Français

Annual Bluegrass (Poa annua) Resistance to Simazine in Mississippi

Published online by Cambridge University Press:  20 January 2017

K. C. Hutto ,
G. E. Coats  and
J. M. Taylor
K. C. Hutto*
Affiliation:
Department of Plant and Soil Sciences, Mississippi State University, Box 9555, Mississippi State, MS 39762
G. E. Coats
Affiliation:
Department of Plant and Soil Sciences, Mississippi State University, Box 9555, Mississippi State, MS 39762
J. M. Taylor
Affiliation:
Department of Plant and Soil Sciences, Mississippi State University, Box 9555, Mississippi State, MS 39762
*
Corresponding author's E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

Research was conducted in winter of 2000 and spring of 2001 to determine the extent of simazine-resistant annual bluegrass in Mississippi. Samples of annual bluegrass seed or mature plants were collected from 71 locations across the state and grown in the greenhouse. Four weeks after treatment with 22.4 kg ai/ha simazine (10× rate), samples from 31 of 71 locations (30 golf courses and one nongolf course) evaluated in the greenhouse had simazine-resistant annual bluegrass plants. Thus, 43% of the golf courses tested in the greenhouse had triazine-resistant annual bluegrass present. When natural field populations were treated with an equivalent simazine rate, simazine-resistant annual bluegrass plants were observed in 90% of the sites found to be resistant in the greenhouse screen.

Keywords

Simazinetriazineannual bluegrass, Poa annua L. # POAANHerbicide resistancetriazineWAT, weeks after treatment
Type
Note
Information
Weed Technology , Volume 18 , Issue 3 , September 2004 , pp. 846 - 849
Copyright
Copyright © 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

Birschbach, E. D., Myers, M. G., and Harvey, R. G. 1993. Triazine-resistant smooth pigweed (Amaranthus hybridus) control in field corn (Zea mays L). Weed Technol. 7:431–436.Google Scholar
Darmency, H. and Gasquez, J. 1983. Interpreting the evolution of a triazine resistant population of P. annua L. New Phytol 95:299–304.Google Scholar
Foes, M. J., Liu, L., Tranel, P. J., Wax, L. M., and Stoller, E. W. 1998. A biotype of common waterhemp (Amaranthus rudis) resistant to triazine and ALS herbicides. Weed Sci. 46:514–520.Google Scholar
Heap, I. M. 1997. The occurrence of herbicide-resistant weeds worldwide. Pestic. Sci 51:235–243.3.0.CO;2-N>CrossRefGoogle Scholar
Heap, I. M. 2003. The International Survey of Herbicide Resistant Weeds. Web page: http://www.weedscience.com. Accessed: April 10, 2003.Google Scholar
Kelly, S. T., Coats, G. E., and Luthe, D. S. 1998. Identification and Assessment of Simazine Resistance in Annual Bluegrass (Poa annua L). Ph.D. dissertation. Mississippi State University, Mississippi State, MS. 41 p.Google Scholar
Ryan, G. F. 1970. Resistance of common groundsel to simazine and atrazine. Weed Sci. 18:614–616.Google Scholar
Yelverton, F. and Isgrigg, J. 1998. Herbicide-resistant weeds in turfgrass. Golf Course Manag 66:56–61.Google Scholar