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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Byrd, J. D., Jr.;
York, A. C. |
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| Author Affiliation: | Dept. of Crop Science, North Carolina State University, Raleigh, NC. |
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| Title: | Annual Grass Management in Cotton Using Postemergence Grass Herbicides |
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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. 2. |
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| Publishing Information: | Southern Weed Science Society |
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| Keywords: | TIC Keywords: Postemergence herbicides; Weed control; Fluazifop; Sethoxydim; Trifluralin; Pendimethalin; Digitaria sanguinalis; Fluometuron
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| Abstract/Contents: | "In 1983 and 1984 fluazifop P-butyl (butyl (R)-2 [4-[[5-(trifluoromethyl)-2-pyridinyl] oxy] phenoxyl] propanoate) and sethoxydim were compared to trifluralin and pendimethalin for annual grass control in cotton (Gossypium hirsutum 'Coker 304'). Test sites were selected with heavy infestations of either broadleaf signalgrass (Brachiaria platyphylla (Griseb.) Nash #BRAPP) or large crabgrass (Digitaria sanguinalis (L.) scop. #DIGSA). Trifluralin and pendimethalin were applied preplant incorporated at 0.56 kg ai/ha on sandy loam soil or 0.84 kg ai/ha on silt loam soil. Fluazifop and sethoxydim were applied once or twice at 0.11 or 0.21 kg ai/ha. All plots received the appropriate rate of fluometuron broadcast preemergence. Visual ratings of grass control and crop tolerance, open boll counts, yield, and fiber quality were used to compare treatments. Broadleaf signalgrass and large crabgrass control and cotton yield were similar with the trifluralin and pendimethalin treatments. In 1983, two applications of either fluazifop or sethoxydim were required for acceptable season-long control of broadleaf signalgrass. One application of either fluazifop or sethoxydim gave control similar to trifluralin or pendimethalin. In 1984, trifluralin, pendimethalin and one application of either fluazifop or sethoxydim gave excellent season-long control of broadleaf signalgrass. No differences in broadleaf signalgrass control were observed among sethoxydim and fluazifop application rates in either year. Two applications of fluazifop at 0.11 kg ai/ha or one application of fluazifop at 0.21 kg ai/ha provided good late-season control of large crabgrass and equalled or exceeded that obtained with trifluralin or pendimethalin. Regardless of application rate, two applications of sethoxydim were required to provide late-season control equal to trifluralin or pendimethalin. Yields were not significantly different among trifluralin, pendimethalin, fluazifop, and sethoxydim treatments. There were no differences in fiber length, fiber length uniformity, fiber strength, micronaire, or percent open bolls in late September among the trifluralin, pendimethalin, sethoxydim or fluazifop treatments." |
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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):
Byrd, J. D. Jr., and A. C. York. 1985. Annual Grass Management in Cotton Using Postemergence Grass Herbicides. Proc. Meet. South. Weed Sci. Soc. 38:p. 2. |
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MSU catalog number: SB 611 .S6 v.38 |
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