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Synergistic Interactions of Tebuthiuron with EPTC + R-25788 and Butylate + R-25788 in Corn (Zea mays)

Published online by Cambridge University Press:  12 June 2017

Kriton K. Hatzios
Kriton K. Hatzios*
Affiliation:
Dep. Plant Pathol. and Physiol., Virginia Polytechnic Inst. and State Univ., Blacksburg, VA 24061
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Abstract

Preplant-incorporated applications of commercial formulations of EPTC (S-ethyl dipropylthiocarbamate) and butylate (S-ethyl diisobutylthiocarbamate) plus the herbicide antidote R-25788 (N,N-diallyl-2,2-dichloroacetamide) were evaluated for their interactions with preemergence applications of tebuthiuron {N-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-N,N′-dimethylurea} in corn (Zea mays L., ‘Pioneer 3780’) under greenhouse conditions. The thiocarbamate herbicides plus the antidote were used at 1.1, 2.2, 3.4, and 4.5 kg/ha, and they were evaluated against 0.3, 0.6, and 1.1 kg/ha of tebuthiuron. Shoot dry weight and shoot height of corn seedlings were measured at 24 days after treatment. Growth responses of corn to combination treatments of these herbicides were significantly reduced. Statistical analysis of the data showed that tebuthiuron interacted synergistically with both EPTC and butylate in the presence of the herbicide-antidote R-25788.

Keywords

Thiocarbamate herbicidesherbicide antidotes
Type
Research Article
Information
Weed Science , Volume 29 , Issue 5 , September 1981 , pp. 601 - 604
Copyright
Copyright © Weed Science Society of America 

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