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The Impact of Volunteer Corn on Crop Yields and Insect Resistance Management Strategies

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Author(s): Paul T. Marquardt | Ryan M. Terry | William G. Johnson

Journal: Agronomy (Basel)
ISSN 2073-4395

Volume: 3;
Issue: 2;
Start page: 488;
Date: 2013;
Original page

Keywords: competition | volunteer corn | resistance management | Bt | Cry3Bb1

ABSTRACT
Volunteer corn (VC) has reemerged as a problematic weed in corn/soybean rotational cropping systems. This reemergence and increasing prevalence of volunteer corn has been correlated to an increased adoption of herbicide-resistant (HR) corn hybrids and the adoption of conservation tillage. Since the introduction of HR crops, control options, weed/crop competition, and other concerns (i.e., insect resistance management of Bt traits) have increased the amount of attention that volunteer corn is receiving. The objective of this review is to discuss what is known about VC prior to and after the introduction of HR crops, and to discuss new information about this important weed.
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