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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Wells, D. W.;
Constantin, R. J. |
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| Author Affiliation: | Hammond Research Station, Louisiana Agric. Exp. Station, Louisiana State University Agric. Center, Hammond, LA. |
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| Title: | Response of Centipede to Selected Herbicide Treatments |
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| Meeting Info.: | Held: January 14-16, 1985, Houston, TX. |
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| Source: | Proceedings of the 38th Southern Weed Science Society. Vol. 38, 1985, p. 99. |
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| Publishing Information: | Southern Weed Science Society |
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| Keywords: | TIC Keywords: Eremochloa ophiuroides; Responses; Herbicide resistance; Oxadiazon; Phytotoxicity; Color; Sethoxydim; Quizalofop; Poppenate-methyl; Fluazifop-butyl; Bromoxynil; Weed control; Herbicide rates
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| Trade Names: | SC-1084 |
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| Geographic Terms: | Southeastern USA |
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| Abstract/Contents: | "Centipede (Eremochloa ophiuroides) has grown in popularity in the southeastern United States due to its acceptable turf quality with a minimum of care. Centipede is adapted to a relatively wide range of soils, particularly those with low fertility and pH. Even though centipede compete well with weed pests once it is well established, weeds can be a problem and centipede has not shown the tolerance to herbicides that has been observed in some of the other Southern turfgrass species. Grass weed pests are particularly difficult to remove from centipede turf once they have germinated. Selected pre- and post-emerge chemicals were applied to actively growing centipede turf to evaluate turf tolerance. Oxadiazon 2% granules were applied to actively growing centipede at 2, 4, and 8 lbs. a.i./A. All treatments caused some initial contact burn to leaf blades where granules stuck. This injury was removed by mowing. No injury was found at any rate to new growth occurring after application. Several of the new grass-specific chemicals were applied directly over-the-top of actively growing centipede and evaluations where made of phytotoxicity, color, percent leaf blade reduction, and percent growth reduction at 2 and 7 weeks after application. Sethoxydim (.25, .50, 1.00 lbs. a.i./A) gave acceptable ratings in all areas at both rating dates. DPX-Y6202, SC-1084, Dowco-453, FOE-34401 (all at .125 and .25 lbs. a.i./A), and fluazifop-butyl (.25 and .50 lbs. a.i./A) had very high percent growth reduction ratings which are considered too high for centipede sod production uses. The lower rates of fluazifop-butyl, SC-1084, and FOE-34401 had phytotoxicity, color, and percent leaf blade reduction ratings considered acceptable only to eliminate serious grass weed pests in established centipede. Sulfometuron methyl, which has pre- and post-emerge activity on both broadleaf and grass-type weeds, gave acceptable ratings in all areas at the .125 kbs. a.i./A rate. The .25 lbs. a.i./A rate was acceptable except for percent growth reduction which was 25% at 2 weeks and reduced to 15% at 7 weeks. Bromoxynil (.5, 1.0, 2.0, 4.0 lbs a.i./A) applied post-emerge for broadleaf weed control on actively growing centipede caused some temporary injury (acceptable for sod production) at the lowest rate to severe injury at the highest rate. Color quality was also reduced as rates increased. Evaluations 6 weeks following application indicated recovery at all rates." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wells, D. W., and R. J. Constantin. 1985. Response of Centipede to Selected Herbicide Treatments. Proc. Meet. South. Weed Sci. Soc. 38:p. 99. |
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MSU catalog number: SB 611 .S6 v.38 |
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