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The Influence of Terbufos on the Response of Five Corn (Zea mays) Hybrids to CGA-136872

Published online by Cambridge University Press:  12 June 2017

David L. Holshouser ,
James M. Chandler  and
Harold R. Smith
David L. Holshouser
Affiliation:
Soil Crop Sci. Dep., Texas A&M Univ., TX 77843
James M. Chandler
Affiliation:
Soil Crop Sci. Dep., Texas A&M Univ., TX 77843
Harold R. Smith
Affiliation:
CIBA-GEIGY Corporation, College Station, TX 77843
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Abstract

Field experiments were established to investigate the influence of terbufos on the response of five corn hybrids to postemergence applications of CGA-136872. In 1987, Asgrow RX404, Dekalb DK656, Funk's G4673A, and Pioneer P3165 were tolerant to CGA-136872 when no soil insecticides were applied. In 1988, terbufos was applied at 1.1 kg ai ha-1 in-furrow at planting. Injury was observed on all hybrids following CGA-136872 application in 1988. With the exception of Funk's G4307, all hybrids were tolerant to CGA-136872 in 1989 when no soil insecticide was used. When terbufos was applied in-furrow, injury increased with increasing herbicide rate for these hybrids.

Keywords

CGA-136872, 2-[[[[[4,6-bis(difluoromethoxy)-2-pyrimidinyl]amino]carbonyl]amino]sulfonyl]benzoic acid methyl esterterbufos, (S-[(tertbutylthio)methyl]-O,O-diethyl phosphorodithioate)corn, Zea mays L. ‘Asgrow RX404’, ‘Dekalb DK656’, ‘Funk's G4307’, ‘Funk's G4673A’, ‘Pioneer P3165’
Type
Research
Information
Weed Technology , Volume 5 , Issue 1 , March 1991 , pp. 165 - 168
Copyright
Copyright © 1990 by the Weed Science Society of America 

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