Abstract
Ecological weed management (EWM) is a scientifically established management approach that uses ecological patterns to reduce weed seedbanks. Such an approach can save organic farmers time and labor costs and reduce the need for repeated cultivation practices that may pose risks to soil and water quality. However, adoption of effective EWM in the organic farm community is perceived to be poor. In addition, communication and collaboration between the scientific community, extension services, and the organic farming community in the US is historically weak. In order to uncover the most persistent obstacles to promoting effective weed management in organic agroecosystems, we use the mental models approach to generate an expert model based on interviews with experts (e.g., weed scientists, weed ecologists, and extension personnel) and theories from the behavioral sciences. The expert model provides two main insights: (1) EWM is a complex strategy that may cause farmers to use heuristics in management decisions and (2) the long-term benefits of EWM, rather than the risks, need to be emphasized in communication with and outreach to organic farmers. The basis for new research topics and outreach material that incorporates these insights from the expert model are discussed. We briefly explain how the expert model is an incomplete picture of on-farm practices, but provides the basis for the second step of our mental models research, the farmer interviews and farmer decision model development.
Similar content being viewed by others
References
Allen, P. 2004. Together at the table: sustainability and sustenance in the American agrifood system. University Park: The Pennsylvania State University Press.
Anderson, R. 2010. A rotation design to reduce weed density in organic farming. Renewable Agriculture and Food Systems 25(3): 189–195.
Ascher, T., R.S. Wilson, and E. Toman. 2012. The importance of affect and perceived risk in understanding support for fuels management among wildland-urban interface residents. International Journal of Wildland Fire 22: 267–276.
Bastiaans, L., M.J. Kropff, J. Goudriaan, and H.H. van Laar. 2000. Design of weed management systems with a reduced reliance on herbicides poses new challenges and prerequisites for modeling crop-weed interactions. Field Crops Research 67: 161–179.
Bastiaans, L., R. Paolini, and D.T. Baumann. 2008. Focus on ecological weed management: What is hindering adoption? Weed Research 48(6): 481–489.
Beck, D. 2008. Systems approach to no-till in the future. Pierre: Dakota Lakes Research Farm.
Bell, M. 2004. Farming for us all: Practical agriculture and the cultivation of sustainability. University Park: Pennsylvania State University Press.
Bostrom, A., B. Fischhoff, and M.G. Morgan. 1992. Characterizing mental models of hazardous processes: A methodology and application to radon. Emmitsburg: National Emergency Training Center.
Bostrom, A., M.G. Morgan, B. Fischhoff, and D. Read. 1994. What do people know about global climate change? Mental models. Risk Analysis 14(6): 959–970.
Bronfman, N.C., and E.L. Vazquez. 2011. A cross-cultural study of perceived benefit versus risk as mediators in the trust-acceptance relationship. Risk Analysis 31: 1919–1934.
Brossard, D., and B. Lewenstein. 2009. A critical appraisal of models of public understanding of science: using practice to inform theory. In Communicating science: new agendas in communication, ed. L. Kahlor, and P. Stout, 11–39. Florence: Routledge.
Brown, T. 1984. The concept of value in resource allocation. Land Economics 60: 231–246.
Burton, R., C. Kuczera, and G. Schwarz. 2008. Exploring farmers’ cultural resistance to voluntary agri-environmental schemes. Sociologia Ruralis 48(1): 16–37. doi:10.1111/j.1467-9523.2008.00452.x.
Cardina, J. 2010. Managing weeds in organic field crops. Paper presented at the OEFFA Developing a Farm Plan.
Cox, H. 1913. Controlling Canada thistles. US Department of Agriculture 545: 1–14.
Damasio, A. 1994. Descartes’ error: Emotion, reason, and the human brain. New York: Cambridge University Press.
Davis, A.S., and M. Ngouajio. 2005. Introduction to the symposium beyond thresholds: Applying multiple tactics within integrated weed management systems. Weed Science 53(3): 368.
Delate, K. 2009. Organic grains, oilseeds, and other specialty crops. In Organic farming: the ecological systems, ed. C.A. Francis, 113–136. Madison: American Society of Agronomy, Inc., Crop Science Society of America, Inc., Soil Science Socieety of America, Inc.
Epstein, S. 1994. Integration of the cognitive and psychodynamic unconscious. American Psychologist 49: 709–724.
Fischhoff, B., J.S. Downs, and W.B. Bruine de Bruin. 1998. Adolescent vulnerability: a framework for behavioral interventions. Applied Preventive Psychology 7: 77–94.
Frederick, S., G. Loewenstein, and T. O’Donoghue. 2002. Time discounting and time preference: A critical review. Journal of Economic Literature 40: 351–401.
Gallandt, E.R. 2006. How can we target the weed seedbank? Weed Science 54(3): 588–596.
Gallandt, E.R., and T. Molloy. 2008. Exploiting weed management benefits of cover crops requires pre-emption of seed rain. In Cultivating the future based on science: 2nd conference of the International Society of Organic Agriculture Research (ISOFAR).
Hanson, J., R. Dismukes, W. Chambers, C. Greene, and A. Kremen. 2004. Risk and risk management in organic agriculture: views of organic farmers. Renewable Agriculture and Food Systems 19(04): 218–227. doi:10.1079/RAFS200482.
Hatcher, P.E., and B. Melander. 2003. Combining physical, cultural, and biological methods: prospects for integrated non-chemical weed management strategies. Weed Research 43(5): 303–322.
Institute, The Rodale. 2013. The farming systems trial. http://rodaleinstitute.org/our-work/farming-systems-trial/farming-systems-trial-30-year-report/. Accessed 1 Dec 2013.
Irwin, A. 1995. Citizen science: a study of people, expertise, and sustainable development. New York: Routledge.
Jackson, L. 1997. Ecology in agriculture. San Diego: Academic Press.
Johnson, W.G., and K.D. Gibson. 2006. Glyphosate-resistant weeds and resistance management strategies: an Indiana grower perspective. Weed Technology 20(3): 768–772.
Kahneman, D. 2003. A perspective on judgment and choice: mapping bounded rationality. American Psychologist 58(9): 697–720.
Kempton, W., J. Boster, and J. Hartley. 1997. Environmental values in American culture. Cambridge: The MIT Press.
Kleindorfer, P. 1999. Understanding individual’s environmental decisions: a decision sciences approach. In Better environmental decisions: strategies for government, businesses, and communities, ed. K. Sexton, A. Marcus, W.K. Easter, and T. Burkhardt, 37–56. Washington, DC: Island Press.
Kloppenburg, J. 1991. Social theory and the de/reconstruction of agricultural science: Local knowledge for an alternative agriculture. Rural Sociology 56(4): 519–548.
Legleiter, T.R., and K.W. Bradley. 2008. Glyphosate and multiple herbicide resistance in common waterhemp (Amaranthus rudis) populations from Missouri. Weed Science 56(4): 582–587. doi:10.1614/ws-07-204.1.
Liebman, M., C.L. Mohler, and C.P. Staver. 2001. Ecological management of agricultural weeds. Cambridge: University Press.
Llewellyn, R.S., R.K. Lindner, D.J. Pannell, and S.B. Powles. 2004. Grain grower perceptions and use of integrated weed management. Australian Journal of Experimental Agriculture 44(10): 993–1001.
Lyson, T. 2004. Civic agriculture: reconnecting farm, food, and community. Medford: Tufts University Press.
March, J.G. 1994. A primer on decision making: how decisions happen. New York: The Free Press.
Martinez-Ghersa, M.A., C.A. Worster, and S.R. Radosevich. 2003. Concerns a weed scientist might have about herbicide-tolerant crops: A revisitation. Weed Technology 17(1): 202–210.
Mauro, I.J., and S.M. McLachlan. 2008. Farmer knowledge and risk analysis: Postrelease evaluation of herbicide-tolerant canola in Western Canada. Risk Analysis 28(2): 463–476.
Mirsky, S.B., E.R. Gallandt, D.A. Mortensen, W.S. Curran, and D.L. Shumway. 2010. Reducing the germinable weed seedbank with soil disturbance and cover crops. Weed Research 50(4): 341–352.
Mohler, C.L., and S.E. Johnson. 2009. Crop rotation on organic farms. National Resource, Agriculture, and Engineering Service (NRAES) Cooperative Extension.
Morgan, M.G., B. Fischhoff, A. Bostrom, and C.J. Atman. 2002. Risk communication: A mental models approach. Cambridge: Cambridge University Press.
Morss, R.E., O.V. Wilhelmi, M.W. Downton, and E. Gruntfest. 2005. Flood risk, uncertainty, and scientific information for decision making: lessons from an interdisciplinary project. Bulletin of the American Meteorological Society 86(11): 1593–1601. doi:10.1175/bams-86-11-1593.
Nazarko, O.M., R.C. Van Acker, and M.H. Entz. 2005. Strategies and tactics for herbicide use reduction in field crops in Canada: A review. Canadian Journal of Plant Science 85(2): 457–479.
Owen, M.D.K. 2001. Importance of weed population shifts and herbicide resistance in the USA corn belt. In The BCPC conference: weeds, 407–412. Brighton: The BCPC Conference.
Parker, J.S., R. Moore, and M. Weaver. 2007. Land tenure as a variable in community based watershed projects: some lessons from the Sugar Creek Watershed, Wayne and Holmes Counties, Ohio. Society and Natural Resources 20(9): 815–833.
Parker, J.S., R.S. Wilson, J.T. LeJeune, and D. Doohan. 2012. Including growers in the “food safety” conversation: enhancing the design and implementation of food safety programming based on farm and marketing needs of fresh fruit and vegetable producers. Agriculture and Human Values 29(3): 303–319.
Peters, E. 2008. The functions of affect in the construction of preferences. In The construction of preference, ed. S. Lichtenstein, and P. Slovic. Cambridge: Cambridge University Press.
Pfeiffer, E. 2008. Weeds and what they tell. Junction City: Biodynamic Farming and Gardening Association Inc.
Riemens, M.M., R.M.W. Groeneveld, M.J.J. Kropff, L.A.P. Lotz, R. Jan Renes, W. Sukkel, and R.Y. van der Weide. 2010. Linking farmer weed management behavior with weed pressure: More than just technology. Weed Science 58: 490–496.
Sass, J., and A. Colangelo. 2006. European Union bans atrazine, while the United States negotiates continued use. International Journal of Occupational and Environmental Health 12: 260–267.
Schonbeck, M. 2010. Twelve steps toward ecological weed management in organic vegetables. eOrganic. http://www.extension.org/pages/18539/twelve-steps-toward-ecological-weed-management-in-organic-vegetables. Accessed 1 Dec 2013.
Simon, H.A. 1959. Theories of decision making in economics and behavioral science. The American Economic Review 3: 253–283.
Slagle, K., R. Zajac, J. Bruskotter, R.S. Wilson, and S. Prange. 2013. Building tolerance for bears: A communications experiment. Journal of Wildlife Management 77: 863–869.
Slovic, P. 1987. Perception of risk. Science 236: 280–285.
Slovic, P., M.L. Finucane, E. Peters, and D.G. Macgregor. 2007. The affect heuristic. European Journal of Operational Research 177(3): 1333–1352.
Swanton, C.J., K.J. Mahoney, K. Chandler, and R.H. Gulden. 2008. Integrated weed management: Knowledge-based weed management systems. Weed Science 56(1): 168–172.
Swanton, C.J., and S.D. Murphy. 1996. Weed science beyond the weeds: the role of integrated weed management (IWM) in agroecosystem health. Weed Science 44: 437–445.
Swanton, C.J., and S.F. Weise. 1991. Integrated weed management: The rationale and approach. Weed Technology 5(3): 657–663.
Tversky, A., and D. Kahneman. 1974. Judgment under uncertainty: Heuristics and biases. Science 185: 1124–1131.
Walters, C. 1999. Weeds: control without poisons. Austin: Acres USA.
Weber, E.U. 2006. Experience-based and description-based perceptions of long-term risk: Why global warming does not scare us (yet). Climatic Change 77(1–2): 103–120. doi:10.1007/s10584-006-9060-3.
Wilson, R.S. 2009. Targeting the farmer decision making process: a pathway to increased adoption of integrated weed management. Crop Protection 28(9): 756–764.
Acknowledgments
We would like to thank all of the interviewees for their time and continued feedback. We would also like to thank Dr. Emmy Regnier for proof reading the manuscript and offering her expertise in weed management. This research was supported by the United States Department of Agriculture, Organic Agriculture Research and Extension Initiative competitive grant program “Mental Models and Participatory Research to Redesign Extension Programming for Organic Weed Management” (USDA Award No. 2009-51300-05653).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Zwickle, S., Wilson, R. & Doohan, D. Identifying the challenges of promoting ecological weed management (EWM) in organic agroecosystems through the lens of behavioral decision making. Agric Hum Values 31, 355–370 (2014). https://doi.org/10.1007/s10460-014-9485-7
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10460-014-9485-7