Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-27T23:52:43.600Z Has data issue: false hasContentIssue false

Effects of Bentazon, Imazaquin, or Chlorimuron on Haloxyfop or Fluazifop-P Efficacy

Published online by Cambridge University Press:  12 June 2017

Kent A. Croon
Affiliation:
Dep. Soil Crop Sci., Tex. A&M Univ., College Station, TX 77843-2474
Morris G. Merkle
Affiliation:
Dep. Soil Crop Sci., Tex. A&M Univ., College Station, TX 77843-2474

Abstract

Field studies were conducted to measure the response of sorghum [Sorghum bicolor (L.) Moench. ‘Conlee's Top Hand’] to foliar applications of haloxyfop {2-[4-[[3-chloro-5-(trifluoromethyl)-2-pyridinyl] oxy] phenoxy] propanoic acid} or fluazifop-P {(R)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl] oxy] phenoxy] propanoic acid} plus either bentazon [3-(1-methylethyl)-(1H)-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide] at 0.84 kg ai/ha imazaquin {2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-3-quinolinecarboxylic acid} at 0.21 kg ae/ha, or chlorimuron {2-[[[[(4-chloro-6-methoxy-2-pyrimidinyl) amino] carbonyl] amino] sulfonyl] benzoic acid} at 12 g ae/ha. Tank-mixing imazaquin or chlorimuron with haloxyfop or fluazifop-P reduced phytotoxicity to sorghum 12 days after treatment (DAT) by 14 to 64% compared to applications of haloxyfop or fluazifop-P alone. Much of this antagonism was reduced 24 DAT as imazaquin and chlorimuron apparently delayed the activity of haloxyfop and fluazifop-P when losses in activity ranged from 13 to 21%. Increases in haloxyfop and fluazifop-P rates tended to reduce the severity of the antagonism. Tank-mixing bentazon with haloxyfop or fluazifop-P did not reduce phytotoxicity to sorghum compared to applications of haloxyfop and fluazifop-P alone.

Type
Research
Copyright
Copyright © 1988 by the 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

1. Arnold, T. L. 1986. Weed control in no-till soybeans with imazaquin. Proc. South. Weed Sci. Soc. 39:72.Google Scholar
2. Buhler, D. D., and Burnside, O. C. 1984. Effect of application factors on postemergence phytotoxicity of fluazifop-butyl, haloxyfop-methyl, and sethoxydim. Weed Sci. 32:574583.CrossRefGoogle Scholar
3. Byrd, J. D. Jr., and York, A. C. 1987. Interaction of fluometuron and MSMA with sethoxydim and fluazifop. Weed Sci. 35:270276.Google Scholar
4. Byrd, J. D. Jr., and York, A. C. 1987. Annual grass control in cotton (Gossypium hirsutum) with fluazifop, sethoxydim, and selected dinitroaniline herbicides. Weed Sci. 35:388394.Google Scholar
5. Chernicky, J. P., and Slife, F. W. 1986. Effects of sublethal concentrations of bentazon, fluazifop, haloxyfop, and sethoxydim on corn (Zea mays). Weed Sci. 34:171174.CrossRefGoogle Scholar
6. Culbertson, D. L., Frans, R. E., and Oliver, L. R. 1986. Postemergence weed control in soybeans with DPX-F6025. Proc. South. Weed Sci. Soc. 39:95.Google Scholar
7. Edmund, R. M. Jr., and York, A. C. 1987. Factors affecting postemergence control of sicklepod (Cassia obtusifolia) with imazaquin and DPX-F6025: spray volume, growth stage, and soil-applied alachlor and vernolate. Weed Sci. 35:216223.Google Scholar
8. Edmund, R. M. Jr., and York, A. C. 1987. Effects of rainfall and temperature on postemergence control of sicklepod (Cassia obtusifolia) with imazaquin and DPX-F6025. Weed Sci. 35:231236.Google Scholar
9. Gerwick, B. C., and Noveroski, R. L. 1984. The basis of antagonism in bentazon combinations with haloxyfop-methyl. Proc. North Cent. Weed Control Conf. 39:8889.Google Scholar
10. Godley, J. L., and Kitchen, L. M. 1986. Interaction of acifluorfen and fluazifop for annual grass control. Weed Sci. 34:936941.Google Scholar
11. Grichar, W. J., and Boswell, T. E. 1986. Postemergence grass control in peanut (Arachis hypogaea). Weed Sci. 34:587590.CrossRefGoogle Scholar
12. Griffin, J. L. 1985. Postemergence weed control in soybeans using AC-252,214 and DPX-F6025. Proc. South. Weed Sci. Soc. 38:79.Google Scholar
13. Hartzler, R. G., and Foy, C. L. 1983. Efficacy of three post-emergence grass herbicides for soybeans. Weed Sci. 31:557561.CrossRefGoogle Scholar
14. Loux, M. M., and Slife, F. W. 1985. Postemergence control of annual morningglory (Ipomoea spp.) in soybeans. Proc. North Cent. Weed Control Conf. 40:72.Google Scholar
15. Minton, B. W., and Shaw, D. R. 1987. Grass and broadleaf herbicide combinations for red rice and barnyardgrass control in soybeans. Proc. South. Weed Sci. Soc. 40:39.Google Scholar
16. Nalewaja, J. D., Gillespie, G. R., and Dexter, A. G. 1984. Postemergence grass and broadleaf herbicide interactions. Proc. North Cent. Weed Control Conf. 39:20.Google Scholar
17. O'Neil, J. B., Lignowski, E. M., Ogg, P. J., Rhodes, A. R., Robinson, P. A., and Stiffler, D. E. 1986. Imazaquin: Summary of 1985 EUP results. Proc. South. Weed Sci. Soc. 39:529.Google Scholar
18. Reynolds, D. B., Murray, D. S., and Basler, E. 1986. Relationship of imposed moisture stress to translocation of four post-emergence grass herbicides. Proc. South. Weed Sci. Soc. 39:406.Google Scholar
19. Steel, R.G.D., and Torrie, T. H. 1980. Principles and Procedures of Statistics. A Biometrical Approach. McGraw-Hill Book Co., New York.Google Scholar
20. Street, J. E. 1983. Economic losses due to weeds. P. 134 in Rogers, L., ed. Research Report. South. Weed Sci. Soc., Champaign, IL.Google Scholar
21. Wharton, T. F., and Shaw, D. R. 1987. Antagonistic responses of graminicides and broadleaf herbicides. Proc. South. Weed Sci. Soc. 40:84.Google Scholar
22. Wilhm, J. L., Meggitt, W. F., and Penner, D. 1986. Effect of acifluorfen and bentazon on absorption and translocation of haloxyfop and DPX-Y6202 in quackgrass (Agropyron repens). Weed Sci. 34:333337.Google Scholar
23. Williams, C. S., and Wax, L. M. 1983. The interaction of bentazon and haloxyfop or sethoxydim. Proc. North Cent. Weed Control Conf. 38:41.Google Scholar