Managing Resistance Evolution in Two Pests to Two Toxins with Refugia

13 Pages Posted: 26 Mar 2004 Last revised: 26 Jan 2012

See all articles by Mike Livingston

Mike Livingston

U.S. Department of Agriculture (USDA) - Economic Research Service (ERS)

Gerald A. Carlson

North Carolina State University - College of Agriculture and Life Sciences

Paul L. Fackler

North Carolina State University - College of Agriculture and Life Sciences

Abstract

We use a regulatory model with resistance evolution in two pests to insecticidal Bt cotton and pyrethroids (a conventional insecticide) to examine non-Bt cotton (refuge) planting requirements designed to manage Bt-resistance evolution in the midsouth. Our analysis suggests that reduced refuge requirements would enhance producer profitability, sprayed refugia are more cost effective than unsprayed refugia, and producers would receive slightly higher returns under dynamic relative to static refuge policies. Pyrethroid susceptibility in one of the pests was a renewable resource, and toxin-mixture effects associated with pyrethroid use in Bt cotton were important considerations for midsouth refuge policies.

Suggested Citation

Livingston, Michael J. and Carlson, Gerald A. and Fackler, Paul L., Managing Resistance Evolution in Two Pests to Two Toxins with Refugia. American Journal of Agricultural Economics, Vol. 86, No. 1, pp. 1-13, February 2004, Available at SSRN: https://ssrn.com/abstract=513272

Michael J. Livingston (Contact Author)

U.S. Department of Agriculture (USDA) - Economic Research Service (ERS) ( email )

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Gerald A. Carlson

North Carolina State University - College of Agriculture and Life Sciences ( email )

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Paul L. Fackler

North Carolina State University - College of Agriculture and Life Sciences ( email )

Box 8109
4344 Nelson
Raleigh, NC 27695-8109
United States
919-515-4535 (Phone)
919-515-1824 (Fax)

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