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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/1997jou1051.pdf
Last checked: 08/04/2010
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| Publication Type:
| Refereed |
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| Author(s): | Murphy, T. R.;
Smith, A. E. |
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| Author Affiliation: | Crop and Soil Sciences Department, The University of Georgia, The Georgia Station, Griffin, Georgia 30223-1797, USA |
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| Title: | Detection and control of dinitroaniline-resistant Eleusine indica (L.) Gaertn. in Cynodon dactylon |
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| Section: | Turf weeds: Contributed papers
Other records with the "Turf weeds: Contributed papers" Section
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| Meeting Info.: | Sydney, Australia: 1997 |
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| Source: | International Turfgrass Society Research Journal. Vol. 8, No. Part 1, 1997, p. 1051-1057. |
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| Publishing Information: | Blacksburg, VA: International Turfgrass Society |
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| # of Pages: | 7 |
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| Keywords: | TIC Keywords: Dinitroaniline herbicides; Herbicide resistance; Eleusine indica; Cynodon dactylon; Identification; Weed control; Oxadiazon; Prodiamine; Pendimethalin; Dithiopyr; Oryzalin; Root growth
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| Abstract/Contents: | "Field and laboratory experiments were conducted in 1993 and 1994 to determine if a population of Eleusine indica grass on a golf course was resistant to dinitroaniline herbicides. Oxadiazon at 4.5, prodiamine at 0.8, pendimethlain at 3.4, oryzalin at 3.4 and dithiopyr at 0.6 kg ai ha⁻¹ were applied to separate plots on a Cynodon dactylon fairway either as a single or repeat application. In August of each year, Eleusine indica grass plants were collected from plots perviously treated with a dinitroaniline herbicide and dithiopyr, as well as from an area of no history of herbicide use. Single, rootless tillers of Eleusine indica plants were suspended in a styro-foam block and floated on a 0.5 strength Hoagland's solution that contained either trifluralin, oryzalin or dithiopyr at concentrations that ranged from 10⁻⁶ to 10⁻⁸ and placed in a grpwth chamber for 21 days. Pendimethalin, oryzalin, prodiamine and dithiopyr did not control Eleusine indica grass. Oxadiazon at all rates and application sequences provided at least 90% Eleusine indica grass control. The tiller bioassay readily detected resistance to dithiopyr and dinitroaniline herbicides. Root growth was extensive for Eleusine plants collected from plots previously treated with pendimethalin, oryzalin, prodiamine and dithiopyr in the presence of a dinitroaniline herbicide and dithiopyr. There was essentially no root growth from Eleusine plants collected from turfgrass areas with no history of dinitroaniline herbicide use." |
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| Language: | English |
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| References: | 10 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Murphy, T. R., and A. E. Smith. 1997. Detection and control of dinitroaniline-resistant Eleusine indica (L.) Gaertn. in Cynodon dactylon. Int. Turfgrass Soc. Res. J. 8(Part 1):p. 1051-1057. |
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MSU catalog number: SB 433 .I52 v. 8 |
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