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Changes in the Weed Species Composition of the Southern United States: 1974 to 1995

Published online by Cambridge University Press:  12 June 2017

Theodore M. Webster
Affiliation:
Department of Crop Science, North Carolina State University, Raleigh, NC 27695-7620
Harold D. Coble
Affiliation:
Department of Crop Science, North Carolina State University, Raleigh, NC 27695-7620

Abstract

The Southern Weed Science Society has conducted an annual survey of the most troublesome weeds in several major crops since 1971. The objective of this summary was to characterize shifts in weed populations over a 22-yr period in four major agronomic crops. For corn, soybean, cotton, and peanut, the largest increases in rank as the most troublesome weeds were found with sicklepod and bermudagrass. The largest decreases were found with johnsongrass, crab-grasses, and common cocklebur. Morningglories and nutsedges remained relatively constant weed problems over the 22-yr period. Sicklepod, nutsedges, and morningglories were the three most troublesome weeds averaged over all crops because they are so well established and relatively difficult to control. Pigweeds (Palmer amaranth, sandhills amaranth, tumble pigweed, and water-hemps) have become increasingly important in soybean, peanut, and cotton in a limited number of states.

Type
Research
Copyright
Copyright © 1997 by the Weed Science Society of America 

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References

Literature Cited

Barrentine, W. L. and Kendig, J. A. 1995. Identification and characterization of common cocklebur (Xanthium strumarium) biotypes resistant to the ALS/AHAS inhibitor herbicides. Proc. South. Weed Sci. Soc. 48:173.Google Scholar
Buchanan, G. A. 1974. Weed survey—southern stales. South. Weed Sci. Soc. Res. Rep. 27:215249.Google Scholar
Buhler, D. D. 1995. Influence of tillage systems on weed population dynamics and management in corn and soybean in the central USA. Crop Sci. 35:12471258.CrossRefGoogle Scholar
Buhler, D. D., Stoltenberg, D. E., Becker, R. L., and Gunsolus, J. L. 1994. Perennial weed populations after 14 years of variable tillage and cropping patterns. Weed Sci. 42:205209.Google Scholar
Coble, H. D. 1994. Future directions and needs for weed science research. Weed Technol. 8:410412.Google Scholar
Doll, J. D. and Quinones, A. 1983. 1983 Survey of perennial weeds in Wisconsin. Proc. North Cent. Weed Control Conf. 38:5360.Google Scholar
Dowler, C. C. 1994. Weed survey—southern states—grass crop subsection. Proc. South. Weed Sci. Soc. 47:279299.Google Scholar
Dowler, C. C. 1995. Weed survey—southern states—broadleaf crops subsection. Proc. South. Weed Sci. Soc. 48:290305.Google Scholar
Elmore, C. D. 1983. Weed survey: analysis and summary. South. Weed Sci. Soc. Res. Rep. 36:182184.Google Scholar
Elmore, C. D. 1984. Weed survey—southern states. South. Weed Sci. Soc. Res. Rep. 37:192198.Google Scholar
Grichar, W. J. 1992. Yellow nutsedge (Cyperus esculentus) control in peanuts (Arachis hypogaea). Weed Technol. 6:108112.Google Scholar
Hatzios, K. K. 1995. Report of the Herbicide Resistant Weeds Committee. Proc. South. Weed Sci. Soc. 48:xliii.Google Scholar
Horak, M. J. and Peterson, D. E. 1995. Biotypes of Palmer amaranth (Amaranthus palmeri) and common waterhemp (Amaranthus nulls) are resistant to imazethapyr and thifensulfuron. Weed Technol. 9:192195.Google Scholar
Kendig, J. A. and Barrentine, W. L. 1995. Identification of ALS-cross-resistant common cocklebur (Xanthium strumarium) in the mid-south. Proc. South. Weed Sci. Soc. 48:173.Google Scholar
Loux, M. M. and Berry, M. A. 1991. Use of a grower survey for estimating weed problems. Weed Technol. 5:460466.Google Scholar
McWhorter, C. G. 1984. Future needs in weed science. Weed Sci. 32:850855.CrossRefGoogle Scholar
Mitich, L. W. and Kyser, G. B. 1987. WSWS survey of common and troublesome weed in twelve western states. Proc. West. Soc. Weed Sci. 40:3659.Google Scholar
Murdock, E. C. 1995. Herbicide resistance: historical perspective and current situation. Proc. Weed Sci. Soc. N.C. 13:3.Google Scholar
Selleck, G. W. 1980. Fall panicum: weed on the increase. Weeds Today 11:15.Google Scholar
Smeda, R. J., Barrentine, W. L., Snipes, C. E., and Rippee, J. H. 1995. Assays to identify graminicide resistance in johnsongrass (Sorghum halepense). Proc. South. Weed Sci. Soc. 48:170.Google Scholar
Triplett, G. B. and Lytle, G. D. 1972. Control and ecology of weeds in continuous corn grown without tillage. Weed Sci. 20:453457.Google Scholar
Wilcut, J. W., York, A. C., and Wehtje, G. R. 1994. The control and interaction of weeds in peanut (Arachis hypogaea). Rev. Weed Sci. 6:177205.Google Scholar