Skip to main content

Effectiveness of Integrated Pest Management Dissemination Techniques: A Case Study of Potato Farmers in Carchi, Ecuador

  • Maria Mauceri (a1), Jeffrey Alwang (a1), George Norton (a1) and Victor Barrera (a2)

Potato farmers in Ecuador rely on chemical inputs to manage pests and optimize yields. Integrated pest management techniques lower production costs, reduce pesticide exposure, and improve long-term agricultural sustainability. Public extension does not, however, exist in Ecuador, and cost-effective means of communicating complex messages to producers are needed. We analyze cost-effectiveness of alternative dissemination methods, including farmer field schools (FFS), field days, pamphlets, and word-of-mouth transmission. Field days and pamphlets have strong impacts on adoption, especially considering their low costs. FFS are effective, but expensive. Evidence also indicates significant diffusion from FFS to non-FFS farmers, indicating high complementarity across methods.

Corresponding author
*2151 Hutcheson Hall, Virginia Tech, Blacksburg, VA 24061, USA. Telephone: 540-231-6517, fax: 540-231-7417, e-mail:
Hide All
Adesina, A., Mbila, D., Nkamleu, G.B., and Endamana, D.. “Econometric Analysis of the Determinants of Adoption of Alley Farming by Farmers in the Forest Zone of Southwest Cameroon.Agriculture, Ecosystems, and Environment 80(2000):255-65.
Adesina, A., and Zinnah, M.. “Technology Characteristics, Farmers’ Perceptions and Adoption Decisions: A Tobit Model Application in Sierra Leone.Agricultural Economics 9(1993):297311.
Barrera, V., Escudero, L., Norton, G., and Alwang, J.. Encontrando Salidas para Reducir los Costos y la Exposicion a Plaguicidas en los Productores de Papa. Quito, Ecuador: INIAP, 2003.
Barrera, V., Norton, G., and Ortiz, O.. Manejo de las Principales Plagas y Enfermedades de la Papa por los Agricultores en la Provincia del Carchi, Ecuador. Quito, Ecuador: INIAP, 1999.
Batz, F.J., Peters, K.J., and Janssen, W.. “The Influence of Technology Characteristics on the Rate and Speed of Adoption.Agricultural Economies 21(1999):121-30.
Bonabana-Wabbi, J.Assessing Factors Affecting Adoption of Agricultural Technologies: The Case of Integrated Pest Management (IPM) in Kumi District, Eastern Uganda.” M.S. thesis. Virginia Polytechnic Institute and State University, August 1998.
Brown, L.A.Innovation Diffusion: A New Perspective. New York: Methuen, 1981.
Caviglia-Harris, J.L.Sustainable Agricultural Practices in Rondonia, Brazil: Do Local Farmer Organizations Affect Adoption Rates?Economic Development and Cultural Change 52(2003):239.
Crissman, C, Espinosa, P., Ducrot, CE.H., Cole, D.C., and Carpio, F.. “The Carchi Study Site: Physical, Health, and Potato Farming Systems in Carchi Province.” Economic, Environmental, and Health Tradeoffs in Agriculture: Pesticides and the Sustainability of Andean Potato Production, Crissman, C., Antle, J. and Capalbo, S., eds. Boston: Kluwer Academic Publishers, 1998.
Davis, K.Farmer Field Schools: A Boon or Bust for Extension in Africa?Journal of International Agricultural and Extension Education 13(2006):9197.
De Souza Filho, H.M., Young, T., and Burton, M.P.. “Factors Influencing the Adoption of Sustainable Agricultural Technologies Evidence from the State of Espirito Santo, Brazil.Technological Forecasting and Social Change 60(1999):97112.
Ersado, Lire, Amacher, G., and Alwang, J.. “Productivity and Land Enhancing Technologies in Northern Ethiopia: Health, Public Investments, and Sequential Adoption.American Journal of Agricultural Economics 86(2004):321-31.
Feder, G., Just, E.R., and Zilberman, D.. “Adoption of Agricultural Innovations in Developing Countries: A Survey.Economic Development and Cultural Change 33(1985):255-98.
Feder, G., Murgai, R., and Quizon, J.B.. “The Acquisition and Diffusion of Knowledge: The Case of Pest Management Training in Farmer Field Schools, Indonesia.” Journal of Agricultural Economics 55(2004a):221–43.
Feder, G., Murgai, R., and Quizon, J.B.. “Sending Farmers Back to School: The Impact of Farmer Field Schools in Indonesia.” Review of Agricultural Economics 26(2004b):4562.
Feder, G., and Slade, R.. “The Acquisition of Information and the Adoption of New Technology.American Journal of Agricultural Economics 66(1984):312-20.
Godtland, E.M., Sadoulet, E., De Janvry, A., Murgai, R., and Ortiz, O.. “The Impact of Farmer Field Schools on Knowledge and Productivity: A Study of Potato Farmers in the Peruvian Andes.Economic Development and Cultural Change 53(2004):6392.
Goodell, G., Andrews, K.L., and Lopez, J.I.. “The Contributions of Agronomo-Anthropologists to On-Farm Research and Extension in Integrated Pest Management.Agricultural Systems 32(1990):32140.
Griliches, Z.Hybrid Corn: An Exploration of the Economics of Technical Change.Econometrica 25(1957):501-22.
Heckman, J.Instrumental Variables. A Study of Implicit Behavioral Assumptions Used in Making Program Evaluations.Journal of Human Resources 32(1997):441-62.
Lang, J.Notes of a Potato Watcher. College Station, TX: Texas A&M University Press, 2001.
Munoz, F., and Cruz, L.. Manual del Cultivo de Papa [Manual No. 5]. Quito, Ecuador: INIAP, 1984.
Negatu, W., and Parikh, A.. “The Impact of Perception and Other Factors on the Adoption of Agricultural Technology in the Moret and Jim Woreda (District) of Ethiopia.Agricultural Economics 21(1999):205-16.
Nelson, R.J., Orrego, R., Ortiz, O., Mündt, M., Fredix, M., and Vien, N.V.. “Working with Resource-Poor Farmers to Manage Plant Diseases.Plant Disease 85(2001):684-95.
Pontius, J.C., Dilts, R., and Bartlett, A.. “From Farmer Field School to Community IPM: Ten Years of IPM Training in Asia.” Report RAP/2002/15. Bangkok: Food and Agricultural Organization, 2002.
Rahm, M.R., and Huffman, W.E.. “The Adoption of Reduced Tillage: The Role of Human Capital and Other Variables.American Journal of Agricultural Economics 66(1984):405-13.
Robinson, C.The Joint Determination of Union Status and Union Wage Effects: Some Tests of Alternative Models.Journal of Political Economy 97(1989):639-67.
Rola, A., Jamias, S., and Quizon, J.. “Do Farmer Field School Graduates Retain and Share What they Learn? An Investigation in Iloilo, Philippines.Journal of International Agriculture and Extension 9(2002):6576.
Strauss, J., Barbosa, M., Teixeira, S., Thomas, D., and Gomes, R. Jr. “Role of Education and Extension in the Adoption of Technology: A Study of Upland Rice and Soybean Farmers in Central-West Brazil.Agricultural Economics 5(1991):341-59.
Thiele, G., Nelson, R., Ortiz, O., and Sherwood, S.. “Participatory Research and Training: Ten Lessons from the Farmer Field School (FFS) in the Andes.Currents—Swedish Academy of Agricultural Sciences 28(2001):411.
Van de Fliert, E., Jonson, N., and Asmunati, R.. “Beyond Higher Yields: The Impact of Sweet Potato Integrated Crop Management and Farmer Field Schools in Indonesia.” Program Report 1999-2000. Lima, Peru: CIP, 2001.
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Journal of Agricultural and Applied Economics
  • ISSN: 1074-0708
  • EISSN: 2056-7405
  • URL: /core/journals/journal-of-agricultural-and-applied-economics
Please enter your name
Please enter a valid email address
Who would you like to send this to? *



Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed