Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-27T06:27:09.994Z Has data issue: false hasContentIssue false
  • English
  • Français

Purple Nutsedge (Cyperus rotundus) and Sicklepod (Senna obtusifolia) Response to Glyphosate Mixtures with ALS-Inhibiting Herbicides

Published online by Cambridge University Press:  12 June 2017

A. Subrahmanyeswara Rao  and
Krishna N. Reddy
A. Subrahmanyeswara Rao
Affiliation:
Southern Weed Science Research Unit, U.S. Department of Agriculture, Agricultural Research Service, P.O. Box 350, Stoneville, MS 38776
Krishna N. Reddy*
Affiliation:
Southern Weed Science Research Unit, U.S. Department of Agriculture, Agricultural Research Service, P.O. Box 350, Stoneville, MS 38776
*
Corresponding author's E-mail: kreddy@ag.gov.
Get access Rights & Permissions [Opens in a new window]

Abstract

Greenhouse studies were conducted to evaluate potential interactions among glyphosate mixtures with five acetolactate synthase (ALS)-inhibiting herbicides (chlorimuron, imazamox, imazaquin, MON 12,000, or pyrithiobac) for the control of purple nutsedge and sicklepod at two growth stages. Herbicides were tested alone at 0.5X and 1X rates (1X being suggested use rate for these herbicides) and in combination with glyphosate at 560 (0.5X) and 1,120 (1X) g ai/ha on 3-wk-old plants and at 1,120 g/ha on 6-wk-old plants. Glyphosate alone at 1,120 g/ha gave complete control of purple nutsedge and at least 78% control of sicklepod regardless of growth stage. In 3-wk-old purple nutsedge plants, three of the 20 herbicide combinations were antagonistic and 17 combinations were additive, whereas all five combinations were additive in 6-wk-old plants. In sicklepod, eight combinations were antagonistic and 12 combinations were additive in 3-wk-old plants, and all five combinations were antagonistic in 6-wk-old plants. In 3-wk-old plants, the glyphosate (0.5X) plus imazaquin (0.5X) combination resulted in highest antagonism in purple nutsedge control (79%), and the combination of glyphosate (0.5X) plus imazamox (0.5X) resulted in highest antagonism in sicklepod control (54%). These results indicate that mixing chlorimuron, imazamox, imazaquin, MON 12,000, or pyrithiobac with glyphosate does not increase glyphosate efficacy on purple nutsedge or sicklepod.

Keywords

Chlorimuron, ethyl 2-[[[[4-chloro-6-methoxy-2-pyrimidinyl)amino]carbonyl]amino] sulfonyl]benzoateglyphosate, isopropylamine salt of N-(phosphonomethyl) glycineMON 12,000 (proposed common name, halosulfuron), methyl 5-[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl aminosulfonyl]-3-chloro-1-methyl-1-H-pyrazole-4-carboxylateimazamox, ammonium salt of 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-(methoxymethyl)-3-pyridinecarboxylic acidimazaquin, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imadazol-2-yl]-3-quinolinecarboxylic acidpyrithiobac, sodium salt of 2-chloro-6-[(4,6-dimethoxy-2-pyrimidinyl)thio]benzoic acidpurple nutsedge, Cyperus rotundus L. #CYPROsicklepod, Senna obtusifolia (L). Irwin and Barneby # CASOBAdditiveantagonismchlorimuronimazamoximazaquininteractionsMON 12,000pyrithiobacCYPROCASOBALS, acetolactate synthasePOST, postemergenceWAA, weeks after application
Type
Research
Information
Weed Technology , Volume 13 , Issue 2 , June 1999 , pp. 361 - 366
Copyright
Copyright © 1999 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.)

Footnotes

Current address of first author: Associate Professor, Department of Agronomy, Agriculture College, Acharya N. G. Ranga Agricultural University, Aswaraopet 507 301, Khammam District, Andhra Pradesh, India.

References

Literature Cited

Anonymous. 1998. Crop Protection Reference, 14th ed. New York: C and P Press. 2304 p.Google Scholar
Bridges, D. C. and Walker, R. H. 1985. Influence of weed management and cropping systems on sicklepod (Cassia obtusifolia) seed in soil. Weed Sci. 33:800–804.Google Scholar
Claus, J. S. 1987. Chlorimuron-ethyl (Classic)®: a new broadleaf postemergence herbicide in soybean. Weed Technol. 1:114–115.Google Scholar
Colby, S. R. 1967. Calculating synergistic and antagonistic response of herbicide combinations. Weeds 15:20–22.Google Scholar
Creel, J. M. Jr., Hoveland, C. S., and Buchanan, G. A. 1968. Germination, growth, and ecology of sicklepod. Weed Sci. 16:396–400.Google Scholar
Crowley, R. H., Teem, D. H., Buchanan, G. A., and Hoveland, C. S. 1979. Response of Ipomoea spp. and Cassia spp. to preemergence applied herbicides. Weed Sci. 27:531–535.Google Scholar
Ewing, J. M. and Witt, W. W. 1998. Impact of herbicide mixtures on glyphosate efficacy. Proc. South. Weed Sci. Soc. 51:9–10.Google Scholar
Ferreira, K. L., Burton, J. D., and Coble, H. D. 1995. Physiological basis for antagonism of fluazifop-P by DPX-PE350. Weed Sci. 43:184–191.CrossRefGoogle Scholar
Harvey, R. G. and Fisher, D. W. 1997. Sequential and tank-mix herbicide combinations in no-till glyphosate tolerant soybeans. Weed Sci. Soc. Am. Abstr. 37:89.Google Scholar
Hatzios, K. K. and Penner, D. 1985. Interactions of herbicides with other agrochemicals in higher plants. Rev. Weed Sci. 1:1–63.Google Scholar
Hicks, T. V., Wehtje, G. R., and Grey, T. L. 1998. The interaction of pyridate and 2,4-DB in peanut (Arachis hypogaea), Florida beggarweed (Desmodium tortuosum) and sicklepod (Senna obtusifolia). Weed Sci. 46:284–288.Google Scholar
Holm, L. G., Plucknett, D. L., Pancho, J. V., and Herberger, J. P. 1977. The World's Worst Weeds: Distribution and Biology. Honolulu: University Press of Hawaii. 609 p.Google Scholar
Isaacs, M. A., Murdock, E. C., Toler, J. E., and Wallace, S. U. 1989. Effect of late-season herbicide applications on sicklepod (Cassia obtusifolia) seed production and viability. Weed Sci. 37:761–765.CrossRefGoogle Scholar
Jordan, D. L., York, A. C., Griffin, J. L., Clay, P. A., Vidrine, P. R., and Reynolds, D. B. 1997. Influence of application variables on efficacy of glyphosate. Weed Technol. 11:354–362.Google Scholar
Lencse, R. J., Strahan, R. E., Normand, T. K., and Hogan, W. A. 1998. Postemergence herbicide tankmixes with Roundup Ultra in Louisiana soybeans. Proc. South. Weed Sci. Soc. 51:9.Google Scholar
Mulkey, J. L., Griffin, J. L., Vidrine, P. R., Jordan, D. L., Clay, P. A., and Miller, D. K. 1998. Weed control in soybean with Roundup Ultra and Classic tank mixtures. Proc. South. Weed Sci. Soc. 51:5.Google Scholar
O'Donovan, J. T. and O'Sullivan, P. A. 1982. The antagonistic action of 2,4-D and bromoxynil on glyphosate phytotoxicity to barley (Hordeum vulgare). Weed Sci. 30:30–34.Google Scholar
Reddy, K. N. and Bendixen, L. E. 1988. Toxicity, absorption, translocation. and metabolism of foliar-applied chlorimuron in yellow and purple nutsedge (Cyperus esculentus and C. rotundas). Weed Sci. 36:707–712.Google Scholar
Scott, R., Shaw, D. R., and Barrentine, W. L. 1998. Glyphosate tank-mixtures with SAN 582 for burndown or postemergence applications in glyphosate-tolerant soybean (Glycine max). Weed Technol. 12:23–26.CrossRefGoogle Scholar
Teem, D. H., Hoveland, C. S., and Buchanan, G. A. 1980. Sicklepod (Cassia obtusifolia) and coffee senna (Cassia occidentalis): geographic distribution, germination, and emergence. Weed Sci. 28:68–71.Google Scholar
Webster, T. M. and Coble, H. D. 1997a. Changes in the weed species composition of the southern United States: 1974 to 1995. Weed Technol. 11:308–317.Google Scholar
Webster, T. M. and Coble, H. D. 1997b. Purple nutsedge (Cyperus rotundas) management in corn (Zea mays), cotton (Gossypium hirsutum) rotations. Weed Technol. 11:543–548.Google Scholar
Wehtje, G. and Walker, R. H. 1997. Interaction of glyphosate and 2,4-DB for the control of selected morningglory (Ipomoea spp) species. Weed Technol. 11:152–156.Google Scholar
Wilcut, J. W. 1998. Influence of pyrithiobac sodium on purple (Cyperus rotundus) and yellow nutsedge (Cyperus esculetus). Weed Sci. 46:111–115.CrossRefGoogle Scholar
[WSSA] Weed Science Society of America. 1994. Herbicide Handbook. Lawrence, KS: Weed Science Society of America. 352 p.Google Scholar
[WSSA] Weed Science Society of America. 1998. Herbicide Handbook Supplement. Lawrence, KS: Weed Science Society of America. 104 p.Google Scholar