Multidimensional Responses to Disease Information: How Do Winegrape Growers React to Powdery Mildew Forecasts and to What Environmental Effect?

23 Pages Posted: 15 Apr 2020

See all articles by Travis J. Lybbert

Travis J. Lybbert

University of California, Davis - Department of Agricultural and Resource Economics

Nicholas Magnan

International Food Policy Research Institute (IFPRI)

W. Douglas Gubler

affiliation not provided to SSRN

Date Written: March 2016

Abstract

Access to better information can enable adjustments that improve individual and social outcomes. In agriculture, accurate forecasts can be especially valuable to both producers and society at large. We analyze the impact of disease forecasts on the responses of growers along multiple margins of adjustment. Using high‐resolution plot‐level panel data, we analyze how California winegrape growers adjust powdery mildew control strategies in response to disease forecasts. While trials that allow only treatment timing adjustments suggest these forecasts bring large environmental benefits, in practice many growers simultaneously adjust what, when, and how much they spray. We find that the net environmental impact of this multidimensional response may actually be negative.

Keywords: Forecast information, Pesticides, Disease, Agriculture, Environment, IPM, Grapes, California

Suggested Citation

Lybbert, Travis J. and Magnan, Nicholas and Gubler, W. Douglas, Multidimensional Responses to Disease Information: How Do Winegrape Growers React to Powdery Mildew Forecasts and to What Environmental Effect? (March 2016). American Journal of Agricultural Economics, Vol. 98, Issue 2, pp. 383-405, 2016, Available at SSRN: https://ssrn.com/abstract=3575949 or http://dx.doi.org/10.1093/ajae/aav097

Travis J. Lybbert (Contact Author)

University of California, Davis - Department of Agricultural and Resource Economics ( email )

One Shields Avenue
Davis, CA 95616
United States

Nicholas Magnan

International Food Policy Research Institute (IFPRI) ( email )

1201 Eye St, NW,
Washington, DC 20005
United States

W. Douglas Gubler

affiliation not provided to SSRN

No Address Available

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