Potato Research

, Volume 44, Issue 2, pp 121–125 | Cite as

The economic impact of potato late blight on US growers

  • J. F. Guenthner
  • K. C. Michael
  • P. Nolte
Full Papers


Potato growers have been able to control the fungus,Phytophthora infestans, that causes late blight with fungicides, but at an increasingly higher cost. A Delphi survey was conducted with thirteen experts to estimate the impact of late blight on potato yields, storage losses and fungicide use. It was estimated late-blight fungicides cost $77.1 million and lost revenue for US growers was an additional $210.7 million. These total costs, which average $507 per hectare, do not include non-fungicide control practices.

Additional keywords

fungicides costs Delphi survey Phytophthora infestans 


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Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • J. F. Guenthner
    • 1
  • K. C. Michael
    • 2
  • P. Nolte
    • 3
  1. 1.Department of Agricultural Economics & Rural SociologyUniversity of IdahoMoscowUSA
  2. 2.University of MissouriTrentonUSA
  3. 3.University of IdahoIdaho FallsUSA

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