The Economics of Glyphosate Resistance Management in Corn and Soybean Production

Economic Research Report No. ERR-184, U.S. Department of Agriculture, April, 52 pp.

52 Pages Posted: 20 Nov 2015

See all articles by Mike Livingston

Mike Livingston

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

Jorge Fernandez-Cornejo

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

Jesse Unger

University of California, Berkeley

Craig Osteen

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

David Schimmelpfennig

Science & Technology PPQ; Economic Research Service (ERS); USDA Economic Research Service

Timothy Park

Farm and Rural Business Branch, RRED

Dayton M. Lambert

University of Tennessee, Knoxville

Date Written: November 13, 2015

Abstract

Glyphosate, known by many trade names, including Roundup, is a highly effective herbicide. Widespread glyphosate use for corn and soybean has led to glyphosate resistance, which is now documented in 14 weed species affecting U.S. cropland, and recent surveys suggest that acreage with glyphosate-resistant (GR) weeds is expanding. Data from USDA’s Agricultural Resource Management Survey (ARMS), along with the Benchmark Study (conducted independently by plant scientists), are used to address several issues raised by the spread of GR weeds. Choices made by growers that could help manage glyphosate resistance include using glyphosate during fewer years, combining it with one or more alternative herbicides, and, most importantly, not applying glyphosate during consecutive growing seasons. As a result, managing glyphosate resistance is more cost effective than ignoring it, and after about 2 years, the cumulative impact of the returns received is higher when managing instead of ignoring resistance.

Keywords: glyphosate, Roundup, corn, soybean, common property, resistance management practices, weeds, horseweed

JEL Classification: Q12, Q16

Suggested Citation

Livingston, Michael J. and Fernandez Cornejo, Jorge and Unger, Jesse and Osteen, Craig and Schimmelpfennig, David and Park, Timothy and Lambert, Dayton M., The Economics of Glyphosate Resistance Management in Corn and Soybean Production (November 13, 2015). Economic Research Report No. ERR-184, U.S. Department of Agriculture, April, 52 pp. , Available at SSRN: https://ssrn.com/abstract=2690579

Michael J. Livingston

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

1400 Independence Ave SW
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HOME PAGE: http://www.ers.usda.gov/AboutERS/Bios/view.asp?ID=mlivingston

Jorge Fernandez Cornejo (Contact Author)

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

355 E Street, SW
Washington, DC 20024-3221
United States
202-694-5537 (Phone)
202-694-5775 (Fax)

Jesse Unger

University of California, Berkeley

310 Barrows Hall
Berkeley, CA 94720
United States

Craig Osteen

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

355 E Street, SW
Washington, DC 20024-3221
United States

David Schimmelpfennig

Science & Technology PPQ ( email )

4700 River Road
Riverdale, MD 20737
United States
301-851-2324 (Phone)

Economic Research Service (ERS) ( email )

355 E Street, SW
Washington, DC 20024-3221
United States
202-694-5507 (Phone)

USDA Economic Research Service ( email )

355 E Street SW
Washington, DC 20024-3221
United States

Timothy Park

Farm and Rural Business Branch, RRED ( email )

355 E Street, SW
Washington, DC 20024-3221
United States
202.694.5446 (Phone)

Dayton M. Lambert

University of Tennessee, Knoxville ( email )

The Boyd Center for Business and Economic Research
Knoxville, TN 37996
United States

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