Hostname: page-component-7c8c6479df-r7xzm Total loading time: 0 Render date: 2024-03-28T07:00:14.292Z Has data issue: false hasContentIssue false

Benchmark Study: IV. Survey of Grower Practices for Managing Glyphosate-Resistant Weed Populations

Published online by Cambridge University Press:  20 January 2017

Joby M. Prince
Affiliation:
Mississippi State University, Mississippi State, MS 39762
David R. Shaw*
Affiliation:
Mississippi State University, Mississippi State, MS 39762
Wade A. Givens
Affiliation:
Mississippi State University, Mississippi State, MS 39762
Micheal D. K. Owen
Affiliation:
Iowa State University, Ames, IA 50011
Stephen C. Weller
Affiliation:
Purdue University, West Lafayette, IN 47907
Bryan G. Young
Affiliation:
Southern Illinois University, Carbondale, IL 62901
Robert G. Wilson
Affiliation:
University of Nebraska, Scotts Bluff, NE 69361
David L. Jordan
Affiliation:
North Carolina State University, Raleigh, NC 27695
*
Corresponding author's E-mail: dshaw@research.msstate.edu

Abstract

In 2010, a grower survey was administered to 1,299 growers in 22 states to determine changes in weed management in the United States from 2006 to 2009. The majority of growers had not changed weed management practices in the previous 3 yr; however, 75% reported using weed management practices targeted at glyphosate-resistant (GR) weeds. Growers were asked to rate their efforts at controlling GR weeds and rate the effectiveness of various practices for controlling/preventing GR weeds regardless of whether they were personally using them. Using the herbicide labeled rate, scouting fields, and rotating crops were among the practices considered by growers as most effective in managing GR weeds. Sixty-seven percent of growers reported effective management of GR weeds. Between the 2005 and 2010 Benchmark surveys, the frequency of growers using specific actions to manage GR weeds increased markedly. Although the relative effectiveness of practices, as perceived by growers, remained the same, the effectiveness rating of tillage and the use of residual and POST herbicides increased.

En 2010, se practicó una encuesta a 1299 productores en 22 estados para determinar los cambios en el manejo de malezas en los Estados Unidos de 2006 a 2009. La mayoría de los productores no había cambiado sus prácticas en el manejo de malezas los tres años anteriores; sin embargo, el 75% reportó el uso de prácticas dirigidas a las malezas resistentes a glyphosate (GR). Se les pidió a los productores evaluar sus esfuerzos en el control de malezas GR y calificar la efectividad de varias prácticas para controlar/prevenir malezas GR, sin importar si ellos las estaban usando personalmente. Usar la dosis recomendada, muestrear los campos y rotar los cultivos estuvieron entre las prácticas consideradas por los productores como las más eficaces en el manejo de malezas GR. El sesenta y siete por ciento de los productores reportó un manejo efectivo de malezas GR. Entre las encuestas de referencia de 2005 y 2010 se incrementó notablemente la frecuencia del uso por parte de los productores de acciones específicas para manejar malezas GR. Aunque la percepción de los productores de la efectividad relativa de las prácticas permaneció igual, se incrementó la calificación de la efectividad del uso de labranza y de herbicidas residuales y pos emergentes.

Type
Education/Extension
Copyright
Copyright © 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

Conover, W. J. 1999. Practical Nonparametric Statistics, 3rd ed. New York John Wiley and Sons. 592 p.Google Scholar
Foresman, C. and Glasgow, L. 2008. US grower perceptions and experiences with glyphosate-resistant weeds. Pest Manag. Sci. 64:388391.Google Scholar
Frisvold, G. B., Hurley, T. M., and Mitchell, P. D. 2009. Adoption of best management practices to control weed resistance by corn, cotton, and soybean growers. AgBioForum 12:370381.Google Scholar
Givens, W. A., Shaw, D. R., Johnson, W. G., Weller, S. C., Young, B. G., Wilson, R. G., Owen, M. D. K., and Jordan, D. 2009a. A grower survey of herbicide use patterns in glyphosate-resistant cropping systems. Weed Technol. 23:156161.Google Scholar
Givens, W. A., Shaw, D. R., Kruger, G. R., Johnson, W. G., Weller, S. C., Young, B. G., Wilson, R. G., Owen, M. D. K., and Jordan, D. 2009b. Survey of tillage trends following the adoption of glyphosate-resistant crops. Weed Technol. 23:150155.Google Scholar
Givens, W. A., Shaw, D. R., and Newman, M. E. 2011. Benchmark study on glyphosate-resistant cropping systems in the USA. III. Grower awareness, information sources, experiences, and management practices regarding glyphosate-resistant weeds. Pest Manag. Sci. In press.Google Scholar
Gustafson, D. I. 2008. Sustainable use of glyphosate in North American cropping systems. Pest Manag. Sci. 64:409416.Google Scholar
Heap, I. 2011. The International Survey of Herbicide-Resistant Weeds. http://www.weedscience.com. Accessed January 31, 2011.Google Scholar
Johnson, W. G. and Gibson, K. D. 2006. Glyphosate-resistant weeds and resistance management strategies: an Indiana grower perspective. Weed Technol. 20:768772.Google Scholar
Johnson, W. G., Owen, M. D. K., Kruger, G. R., Young, B. G., Shaw, D. R., Wilson, R. G., Wilcut, J. W., Jordan, D. L., and Weller, S. C. 2009. U.S. farmer awareness of glyphosate-resistant weeds and resistance management strategies. Weed Technol. 23:308312.Google Scholar
Kruger, G. R., Johnson, W. G., Weller, S. C., et al. 2009. U.S. grower views on problematic weeds and changes in weed pressure in glyphosate-resistant corn, cotton, and soybean cropping systems. Weed Technol. 23:162166.Google Scholar
Prince, J. M., Shaw, D. R., Givens, W. A., Owen, M. D. K., Weller, S. C., Young, B. G., Wilson, R. G., and Jordan, D. L. 2012. Benchmark Study: I. Introduction, Weed Population, and Management Trends from the Benchmark Survey 2010. Weed Technol. 26:525530.Google Scholar
Sammons, R. D., Heering, D. C., Dinicola, N., Glick, H., and Elmore, G. A. 2007. Sustainability and stewardship of glyphosate and glyphosate-resistant crops. Weed Technol. 21:347354.Google Scholar
Shaw, D. R., Givens, W. A., Farno, L. A., et al. 2009. Using a grower survey to assess the benefits and challenges of glyphosate-resistant cropping systems for weed management in U.S. corn, cotton, and soybean. Weed Technol. 23:134149.Google Scholar
Werth, J. A., Preston, C., Taylor, I. N., Charles, G. W., Roberts, G. N., and Baker, J. 2008. Managing the risk of glyphosate resistance in Australian glyphosate-resistant cotton production systems. Pest Manag. Sci. 64:417421.Google Scholar