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Insecticide use on vegetables in Ghana: Would GM seed benefit farmers?

Author

Listed:
  • Horna, Daniela
  • Smale, Melinda
  • Al-Hassan, Ramatu
  • Falck-Zepeda, José
  • Timpo, Samuel E.
Abstract
"Tomato, cabbage, and garden egg (African eggplant, or Solanum aethiopicum) are important crops for small-scale farmers and migrants in the rural and peri-urban areas of Ghana. Genetic modification has the potential to alleviate poverty through combating yield losses from pests and diseases in these crops, while reducing health risks from application of hazardous chemicals. This ex ante study uses farm survey data to gauge the potential for adoption of genetically modified (GM) varieties, estimate the potential impact of adoption on farm profits, and highlight economic differences among the three crops. Farmers' expenditures on insecticides are below the economic optimum in all three crops, and the estimated function for damage abatement shows that insecticide amounts are significant determinants of cabbage yields only. Nonetheless, yield losses from pests and disease affect insecticide use. A stochastic budget analysis also indicates a higher rate of return to vegetable production with the use of resistant seeds relative to the status quo, even considering the technology transfer fee for GM seed. Non–insecticide users could accrue higher marginal benefits than current insecticide users. Comparing among vegetable crops with distinct economic characteristics provides a wider perspective on the potential impact of GM technology. Until now, GM eggplant is the only vegetable crop that has been analyzed in the peer-reviewed, applied economics literature. This is the first analysis that includes African eggplant." from authors' abstract

Suggested Citation

  • Horna, Daniela & Smale, Melinda & Al-Hassan, Ramatu & Falck-Zepeda, José & Timpo, Samuel E., 2008. "Insecticide use on vegetables in Ghana: Would GM seed benefit farmers?," IFPRI discussion papers 785, International Food Policy Research Institute (IFPRI).
    • Handle: RePEc:fpr:ifprid:785
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    2. Xingliang Ma & Melinda Smale & David J. Spielman & Patricia Zambrano & Hina Nazli & Fatima Zaidi, 2017. "A Question of Integrity: Variants of Bt Cotton, Pesticides and Productivity in Pakistan," Journal of Agricultural Economics, Wiley Blackwell, vol. 68(2), pages 366-385, June.
    3. Kergna, Alpha & Smale, Melinda & Assima, Amidou & Diallo, Abdoulaye & Weltzien, Eva & Rattunde, Fred, 2017. "The potential economic impact of Guinea-race sorghum hybrids in Mali: A comparison of research and development paradigms," African Journal of Agricultural and Resource Economics, African Association of Agricultural Economists, vol. 12(1), March.
    4. Blair J. Wylie & Kenneth A. Ae-Ngibise & Ellen A. Boamah & Mohammed Mujtaba & Carmen Messerlian & Russ Hauser & Brent Coull & Antonia M. Calafat & Darby Jack & Patrick L. Kinney & Robin Whyatt & Seth , 2017. "Urinary Concentrations of Insecticide and Herbicide Metabolites among Pregnant Women in Rural Ghana: A Pilot Study," IJERPH, MDPI, vol. 14(4), pages 1-13, March.
    5. Falck-Zepeda, Jose Benjamin & Gruère, Guillaume P. & Sithole-Niang, Idah (ed.), 2013. "Genetically modified crops in Africa: Economic and policy lessons from countries south of the Sahara," IFPRI books, International Food Policy Research Institute (IFPRI), number 978-0-89629-795-1.
    6. Honest Machekano & Brighton M. Mvumi & Casper Nyamukondiwa, 2017. "Diamondback Moth, Plutella xylostella (L.) in Southern Africa: Research Trends, Challenges and Insights on Sustainable Management Options," Sustainability, MDPI, vol. 9(2), pages 1-23, February.
    7. Ma, Xingliang & Smale, Melinda & Spielman, David J. & Zambrano, Patricia & Nazli, Hina & Zaidi, Fatima, 2016. "Varietal integrity, damage abatement, and productivity: Evidence from the cultivation of Bt cotton in Pakistan:," IFPRI discussion papers 1520, International Food Policy Research Institute (IFPRI).
    8. Maria Christie & Emily Houweling & Laura Zseleczky, 2015. "Mapping gendered pest management knowledge, practices, and pesticide exposure pathways in Ghana and Mali," Agriculture and Human Values, Springer;The Agriculture, Food, & Human Values Society (AFHVS), vol. 32(4), pages 761-775, December.

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    Keywords

    Biotechnology Developing countries; Genetically modified crops; pesticides; Pests Management; eggplant; damage abatement; stochastic budget analysis;
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