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Nutsedge (Cyperus spp.) Control in Peanuts (Arachis hypogaea) with Imazethapyr

Published online by Cambridge University Press:  12 June 2017

W. James Grichar ,
Paul R. Nester  and
A. Ed Colburn
W. James Grichar
Affiliation:
Tex. Agric. Exp. Stn., Yoakum, TX 77995
Paul R. Nester
Affiliation:
Am. Cyanamid Co., The Woodlands, TX 77381
A. Ed Colburn
Affiliation:
Tex. Agric. Ext. Serv., College Station, TX 77843
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Abstract

Experiments were conducted from 1988 through 1991 to evaluate the effectiveness of imazethapyr alone and in combination with metolachlor for control of yellow and purple nutsedge. Imazethapyr alone at 0.07 kg ha–1 controlled yellow nutsedge irregularly while the addition of metolachlor greatly improved control. Metolachlor preplant incorporated (PPI) followed by imazethapyr at ground-crack (GC) or postemergence (POST) controlled 72 to 96% of yellow nutsedge, whereas a tank-mix of metolachlor plus imazethapyr PPI controlled 85 to 96%. The addition of metolachlor to imazethapyr did not result in any improvement in control of purple nutsedge. Metolachlor plus imazethapyr PPI controlled ≥ 85% of purple nutsedge PPI, whereas imazethapyr POST controlled ≥ 94%.

Keywords

Imazethapyr, (±)–2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-ethyl-3-pyridinecarboxylic acidmetolachlor, 2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamidepeanut, Arachis hypogaea L. ‘Florunner’purple nutsedge, Cyperus rotundus L. ♯ CYPROyellow nutsedge, Cyperus esculentus L. ♯ CYPESMetolachlortiming of applicationpurple nutsedgeyellow nutsedgeCYPESCYPRO
Type
Research
Information
Weed Technology , Volume 6 , Issue 2 , June 1992 , pp. 396 - 400
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

Literature Cited

1. Basham, G. W. and Lavy, T. L. 1987. Microbial and photolytic dissipation of imazaquin in soil. Weed Sci. 35:865–870.Google Scholar
2. Brecke, B. J. 1991. Purple nutsedge (Cyperus rotundus) control in peanuts. Proc. South. Weed Sci. Soc. 44:139.Google Scholar
3. Cantwell, J. R., Liebl, R. A., and Slife, F. W. 1989. Imazethapyr for weed control in soybean (Glycine max). Weed Technol. 3:596–601.Google Scholar
4. Cardina, J. and Swann, C. W. 1988. Metolachlor effects on peanut growth and development. Peanut Sci. 15:57–60.CrossRefGoogle Scholar
5. Cole, T. A., Wehtje, G. R., Wilcut, J. W., and Hicks, T. V. 1989. Behavior of imazethapyr in soybeans (Glycine max), peanuts (Arachis hypogaea), and selected weeds. Weed Sci. 37:639–644.Google Scholar
6. Grichar, W. J. and Boswell, T. E. 1986. Postemergence grass control in peanut (Arachis hypogaea). Weed Sci. 34:587–590.CrossRefGoogle Scholar
7. Grichar, W. J. 1991. Control of Texas panicum (Panicum texanum) and southern crabgrass (Digitaria ciliaris) in peanuts (Arachis hypogaea) with postemergence herbicides. Peanut Sci. 18:6–9.Google Scholar
8. Majek, B. 1988. Imazethapyr residue effects on several vegetable crops. Proc. Northeast. Weed Sci. Soc. 42:227.Google Scholar
9. Obrigawitch, T., Abernathy, J. P., and Gipson, J. R. 1980. Response of yellow (Cyperus esculentus) and purple (Cyperus rotundus) nutsedge to metolachlor. Weed Sci. 28:708–715.Google Scholar
10. Ray, B. R. and Wilcox, M. 1969. Chemical fallow control of nutsedge. Weed Res. 9:86–94.CrossRefGoogle Scholar
11. Shaner, D. L., Anderson, P. C., and Stidham, M. A. 1984. Imidazolinones-potent inhibitors of acetohydroxyacid synthase. Plant Physiol. 76:545–546.Google Scholar
12. Shaner, D. L. 1989. Factors affecting soil and foliar bioavailability of imidazolinones. Tech. Inf. Rep., Agric. Res. Div., American Cyanamid Co., Princeton, NJ. 24 p.Google Scholar
13. Vencill, W. K., Wilson, H. P., Hines, T. E., and Hatzios, K. K. 1990. Common lambsquarters (Chenopodium album) and rotational crop response to imazethapyr in pea (Pisum sativum) and snap bean (Phaseo lus vulgaris). Weed Technol. 4:39–43.Google Scholar
14. Walls, F. R., Muzyk, K. R., and Wiley, G. 1989. Influence of timing of imazethapyr applications in peanuts. Proc. Am. Peanut Res. Educ. Soc. 21:55.Google Scholar
15. Wang, T., Whatley, L. L., Congleton, W. F., Hackworth, H. M., Dunn, J. C., and Watkins, R. M. 1986. AC 263,499 herbicide: Development status. Proc. South. Weed Sci. Soc. 39:520.Google Scholar
16. Wehtje, G., Wilcut, J. W., Hicks, T. V., and McGuire, J. 1988. Relative tolerance of peanuts to alachlor and metolachlor. Peanut Sci. 15:53–56.Google Scholar
17. Wilcut, J. W. and Walls, F. R. 1989. Imazethapyr for broadleaf weed control in Virginia peanuts. Proc. Am. Peanut Res. Educ. Soc. 21:57.Google Scholar
18. Wilcut, J. W. 1991. Imazethapyr and AC 263,222 herbicide systems for Georgia peanuts. Proc. South. Weed Sci. Soc. 44:138.Google Scholar
19. Wilcut, J. W., Walls, F. R. Jr., and Norton, D. N. 1991. Imazethapyr for broadleaf weed control in peanuts (Arachis hypogaea). Peanut Sci. 18:26–30.CrossRefGoogle Scholar
20. Wiley, G. L., Muzyk, K. R., and Walls, F. R. 1991. Methods for control of nutsedge in peanuts with imazethapyr. Proc. South. Weed Sci. Soc. 44:141.Google Scholar