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Synergistic Mixtures of Sethoxydim and Fluazifop on Annual Grass Weeds

Published online by Cambridge University Press:  12 June 2017

K. Neil Harker  and
P. Ashley O'Sullivan
K. Neil Harker
Affiliation:
Agric. Can. Res. Stn., Bag Service 5000, Lacombe, Alberta, Canada T0C IS0
P. Ashley O'Sullivan
Affiliation:
Agric. Can. Res. Stn., Bag Service 5000, Lacombe, Alberta, Canada T0C IS0
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Abstract

Greenhouse and field experiments were conducted at the Lacombe Research Station to evaluate mixtures of sethoxydim and fluazifop on green foxtail, wild oat, wheat, and barley in canola. In both environments the two herbicides interacted on the grass species in a synergistic manner. Many of the observed responses to mixtures of sethoxydim and fluazifop were 100% greater than those expected assuming an additive interaction between the herbicides. Mixtures with at least 80 g ha-1 of sethoxydim and 80 g ha-1 of fluazifop controlled more than 90% of green foxtail, wild oat, wheat, and barley under field conditions. These experiments indicate that the sethoxydim/fluazifop mixture is both complementary and synergistic. The mixture may allow reduced herbicide application rates and therefore reduced herbicide costs and less potential for negative environmental impact.

Keywords

Fluazifop, (±)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoic acidsethoxydim, 2-[1-(ethoxyimino)-butyl]-5-[2-(ethylthio)-propyl-3-hydroxy-2-cyclohexen-1-onegreen foxtail, Setaria viridis (L.) Beauv. ♯ SETVIwild oat, Avena fatua L. ♯ AVEFAbarley, Hordeum vulgare L.canola, Brassica campestris L. ‘Candle’wheat, Triticum aestivum L.Herbicide mixturesAvena fatuaBrassica campestrisHordeum vulgareSetaria viridisTriticum aestivumAVEFASETVI
Type
Research
Information
Weed Technology , Volume 5 , Issue 2 , June 1991 , pp. 310 - 316
Copyright
Copyright © 1991 Weed Science Society of America 

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References

Literature Cited

1. Alberta Agriculture. 1990. Guide to crop protection in Alberta. Part 1 Chemical. Agdex 606-1.Google Scholar
2. Anderson, M. D., and Arnold, W. E. 1984. Weed control in sunflowers (Helianthus annuus) with desmedipham and phenmedipham. Weed Sci. 32:310–314.Google Scholar
3. Blackshaw, R. E. 1989. HOE-39866 use in chemical fallow systems. Weed Technol. 3:420–428.Google Scholar
4. Blackshaw, R. E. 1989. Synergistic mixes of DPX-A7881 and clopyralid in canola (Brassica napus). Weed Technol. 3:690–695.Google Scholar
5. Chernicky, J. P., Gossett, B. J., and Murphy, T. R. 1984. Factors influencing control of annual grasses with sethoxydim or Ro-13–8895. Weed Sci. 32:174–177.Google Scholar
6. Chow, P.N.P., and MacGregor, A. W. 1983. Effect of ammonium sulphate and surfactants on activity of the herbicide sethoxydim. J. Pestic. Sci. 8:519–527.Google Scholar
7. Colby, S. R. 1967. Calculating synergistic and antagonistic responses of herbicide combinations. Weeds 15:20–22.Google Scholar
8. Fawcett, J. A., Harvey, R. G., Arnold, W. E., Bauman, T. T., Eberlein, C. V., Kells, J. J., Moshier, L. J., Slife, F. W., and Wilson, R. C. 1987. Influence of environment on corn (Zea mays) tolerance to sethoxydim. Weed Sci. 35:568–575.CrossRefGoogle Scholar
9. Flint, J. L., Cornelius, P. L., and Barrett, M. 1988. Analyzing herbicide interactions: a statistical treatment of Colby's method. Weed Technol. 2:304–309.Google Scholar
10. Hamill, A. S., and Penner, D. 1973. Interaction of alachlor and carbofuran. Weed Sci. 21:330–335.Google Scholar
11. Harker, K. N. 1987. Enhancing fluazifop-butyl activity with ammonium sulphate. Research Report of the Expert Committee on Weeds, Western Section. Dec. 1–3, 1987, Victoria, B.C. p. 300–301.Google Scholar
12. Harker, K. N., and O'Sullivan, P. A. 1988. Ammonium sulphate enhances control of annual grass weeds in canola (Brassica campestris) with sethoxydim Can. J. Plant Sci. 68:1087–1093.Google Scholar
13. Hatzios, K. K. 1981. Synergistic interactions of tebuthiuron with EPTC + R-25788 and butylate + R-25788 in corn (Zea mays). Weed Sci. 29: 601–604.Google Scholar
14. Kells, J. J., Meggitt, W. F., and Penner, D. 1984. Absorption, translocation, and activity of fluazifop-butyl as influenced by plant growth stage and environment. Weed Sci. 32:143–149.Google Scholar
15. McInnes, D., Harker, K. N., Blackshaw, R. E., and Vanden Born, W. H. 1989. The influence of ultraviolet light on the phytotoxicity of sethoxydim tank-mixtures with various adjuvants. Proceedings of the Second International Symposium on Adjuvants for Agrichemicals. CRC Press (Accepted).Google Scholar
16. Minton, B. W., Shaw, D. R., and Kurtz, M. E. 1989. Postemergence grass and broadleaf herbicide interactions for red rice (Oryza sativa) control in soybeans (Glycine max) Weed Technol. 3:329–334.Google Scholar
17. Retzinger, E. J., Rogers, R. L., and Mowers, R. P. 1983. Performance of BAS 9052 applied to johnsongrass (Sorghum halepense) and soybeans (Glycine max). Weed Sci. 31:796–800.Google Scholar
18. Reynolds, D. B., Wheless, T. G., Basler, E., and Murray, D. S. 1988. Moisture stress effects on absorption and translocation of four foliar-applied herbicides. Weed Technol. 2:437–441.Google Scholar
19. Riley, D. G., and Shaw, D. R. 1988. Influence of imazapyr on the control of pitted morningglory (Ipomoea lacunosa) and johnsongrass (Sorghum halepense) with chlorimuron, imazaquin, and imazethapyr. Weed Sci. 36:663–666.Google Scholar
20. Riley, D. G., and Shaw, D. R. 1989. Johnsongrass (Sorghum halepense) and pitted morningglory (Ipomoea lacunosa) control with imazaquin and imazethapyr. Weed Technol. 3:95–98.CrossRefGoogle Scholar
21. Sorenson, V. M., Meggitt, W. F., and Penner, D. 1987. The interaction of acifluorfen and bentazon in herbicidal combinations. Weed Sci. 35: 449–456.Google Scholar
22. Waldrop, D. D., and Banks, P. A. 1983. Interactions of 2,4-DB, acifluorfen, and toxaphene applied to foliage of sicklepod (Cassia obtusifolia) . Weed Sci. 31:351–354.Google Scholar
23. Westberg, D. E., Oliver, L. R., and Frans, R. E. 1989. Weed control with clomazone and with other herbicides. Weed Technol. 3:678–685.Google Scholar