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Control of Five Broadleaf Weeds in Sugarbeets (Beta vulgaris) with Glyphosate

Published online by Cambridge University Press:  12 June 2017

Edward E. Schweizer  and
Larry D. Bridge
Edward E. Schweizer
Affiliation:
Presently: Res. Assoc, Monsanto Agric. Prod. Co., St. Louis, MO 63166
Larry D. Bridge
Affiliation:
Presently: Res. Assoc, Monsanto Agric. Prod. Co., St. Louis, MO 63166
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Abstract

Field experiments were conducted to study the feasibility of applying glyphosate [N-(phosphonomethyl) glycine] postemergence with a recirculating sprayer and a vertical roller for the control of common lambsquarters (Chenopodium album L.), common sunflower (Helianthus annuus L.), kochia [Kochia scoparia (L.) Schrad.], redroot pigweed (Amaranthus retroflexus L.), and velvetleaf (Abutilon theophrasti Medic.) in sugarbeets (Beta vulgaris L.). Glyphosate was applied twice each year at 1.7 kg/ha with a recirculating sprayer in 1977 and 1978, or twice as a 20% (v/v) solution with a vertical-roller applicator in 1979. By harvest, 70 to 74% of the total population of treated common sunflower, kochia, and redroot pigweed, 61% of the common lambsquarters, and 30% of the velvetleaf was dead. Root yields in glyphosate-treated plots, when averaged over 3 yr, were increased 5800, 8500, 12 500, and 13400 kg/ha at densities of 6, 12, 18, and 24 broadleaf weeds (equal densities of common lambsquarters, kochia, and redroot pigweed)/30m of row, respectively. Where equal densities of common sunflower and velvetleaf competed with sugarbeets, root yields in glyphosate-treated plots, when averaged over 2 yr, were increased 4400, 11900, 11700, and 10700 kg/ha, respectively, at these same densities.

Keywords

Chenopodium albumHelianthus annuusKochia scopariaAmaranthus retroflexusAbutilon theophrastiweed lossescompetition
Type
Research Article
Information
Weed Science , Volume 30 , Issue 3 , May 1982 , pp. 291 - 296
Copyright
Copyright © 1982 by the Weed Science Society of America 

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References

Literature Cited

1. Brimhall, P. B., Chamberlain, E. W., and Alley, H. P. 1965. Competition of annual weeds and sugarbeets. Weeds 13:33–35.CrossRefGoogle Scholar
2. Dale, J E. 1979. Application equipment for Roundup – the rope wick applicator. Proc. Beltwide Cotton Prod. Res. Conf. pp. 138–141.Google Scholar
3. Dale, J. E. 1981. Control of johnsongrass (Sorghum halepense) and volunteer corn (Zea mays) in soybeans (Glycine max . Weed Sci. 29:708–711.CrossRefGoogle Scholar
4. Dawson, J. H. 1974. Full-season weed control in sugarbeets. Weed Sci. 22:330–335.CrossRefGoogle Scholar
5. Dawson, J. H. 1975. Cycloate and phenmedipham as complementary treatments in sugarbeets. Weed Sci. 23:478–485.CrossRefGoogle Scholar
6. Hendrick, L. W., Meggitt, W. F., and Penner, D. 1974. Selective use of phenmedipham and EP-475 in Michigan for weed control in sugarbeets. J. Am. Soc. Sugar Beet Technol. 18:97–107.CrossRefGoogle Scholar
7. McWhorter, C. G. 1970. A recirculating spray system for postemergence weed control in row crops. Weed Sci. 18:285–287.CrossRefGoogle Scholar
8. Schweizer, E. E. 1974. Weed control in sugarbeets with cycloate, phenmedipham, and EP-475. Weed Res. 14:39–44.CrossRefGoogle Scholar
9. Schweizer, E. E. 1980. Herbicides applied sequentially for economical control of annual weeds in sugarbeets (Beta vulgaris . Weed Sci. 28:152–159.CrossRefGoogle Scholar
10. Schweizer, E. E. 1981. Broadleaf weed interference in sugarbeets (Beta vulgaris . Weed Sci. 29:128–133.CrossRefGoogle Scholar
11. Steel, R.G.D. and Torrie, J. H. 1960. Principles and Procedures of Statistics. McGraw-Hill, New York. 481 pp.Google Scholar
12. Thomas, T. M. and Burke, J. 1975. Sequential application of herbicides for season-long weed control in sugarbeet. Proc. 3rd Int. Meeting Selective Weed Control in Beet Crops, Paris. pp. 21–38.Google Scholar
13. Weatherspoon, D. M. and Schweizer, E. E. 1971. Competition between sugarbeets and five densities of kochia. Weed Sci. 19:125–128.CrossRefGoogle Scholar
14. Wilson, R. G. Jr. and Anderson, F. N. 1981. Control of three weed species in sugarbeets (Beta vulgaris) with an electrical discharge system. Weed Sci. 29:93–98.CrossRefGoogle Scholar
15. Wyse, D. L. and Habstritt, C. 1977. A roller herbicide applicator. Proc. North Cent. Weed Control Conf. 32:144–145.Google Scholar
16. Yun, Y. M. and Sullivan, E. F. 1980. Pest management systems for sugarbeets in the North American Central Great Plains Region. J. Am. Soc. Sugar Beet Technol. 20:454–476.CrossRefGoogle Scholar