Translator Disclaimer
1 April 2011 Seeds of Change: Corn Seed Mixtures for Resistance Management andIntegrated Pest Management
David W. Onstad, Paul D. Mitchell, Terrance M. Hurley, Jonathan G. Lundgren, R. Patrick Porter, Christian H. Krupke, Joseph L. Spencer, Christine D. Difonzo, Tracey S. Baute, Richard L. Hellmich, Lawrent L. Buschman, William D. Hutchison, John F. Tooker
Author Affiliations +
Abstract

The use of mixtures of transgenic insecticidal seed and nontransgenic seed to provide an in-field refuge for susceptible insects in insect-resistance-management (IRM) plans has been considered for at least two decades. However, the U.S. Environmental Protection Agency has only recently authorized the practice. This commentary explores issues that regulators, industry, and other stakeholders should consider as the use of biotechnology increases and seed mixtures are implemented as a major tactic for IRM. We discuss how block refuges and seed mixtures in transgenic insecticidal corn, Zea mays L., production will influence integrated pest management (IPM) and the evolution of pest resistance. We conclude that seed mixtures will make pest monitoring more difficult and that seed mixtures may make IRM riskier because of larval behavior and greater adoption of insecticidal corn. Conversely, block refuges present a different suite of risks because of adult pest behavior and the lower compliance with IRM rules expected from farmers. It is likely that secondary pests not targeted by the insecticidal corn as well as natural enemies will respond differently to block refuges and seed mixtures.

David W. Onstad, Paul D. Mitchell, Terrance M. Hurley, Jonathan G. Lundgren, R. Patrick Porter, Christian H. Krupke, Joseph L. Spencer, Christine D. Difonzo, Tracey S. Baute, Richard L. Hellmich, Lawrent L. Buschman, William D. Hutchison, and John F. Tooker "Seeds of Change: Corn Seed Mixtures for Resistance Management andIntegrated Pest Management," Journal of Economic Entomology 104(2), 343-352, (1 April 2011). https://doi.org/10.1603/EC10388
Received: 19 October 2010; Accepted: 1 December 2010; Published: 1 April 2011
JOURNAL ARTICLE
10 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top