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Interaction of Clethodim with Pyrithiobac and Bromoxynil Applied in Low Volume

Published online by Cambridge University Press:  12 June 2017

Joyce A. Tredaway ,
Michael G. Patterson  and
Glenn R. Wehtje
Joyce A. Tredaway
Affiliation:
Department of Agronomy and Soils, Auburn University and Alabama Agricultural Experiment Station, Auburn, AL 36849-5142
Michael G. Patterson
Affiliation:
Department of Agronomy and Soils, Auburn University and Alabama Agricultural Experiment Station, Auburn, AL 36849-5142
Glenn R. Wehtje
Affiliation:
Department of Agronomy and Soils, Auburn University and Alabama Agricultural Experiment Station, Auburn, AL 36849-5142
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Abstract

Greenhouse and field studies were conducted to determine the interaction of clethodim sprayed in low volume with pyrithiobac or bromoxynil and to determine the influence of these mixtures on large crabgrass control. A low-volume, air-assisted spraying system was calibrated to deliver 26 L/ha and was compared to a conventional hydraulic fan spraying system calibrated to deliver 140 L/ha. Greenhouse data indicated that carrier volume had no effect on large crabgrass control with clethodim. The addition of pyrithiobac to clethodim in mixture was antagonistic compared to control with clethodim applied alone. The addition of bromoxynil to clethodim in mixture was synergistic. Field studies showed similar results.

Keywords

Bromoxynil, 3,5-dibromo-4-hydroxybenzonitrileclethodim, (E,E)-(±)-2-[1-[[(3-chloro-2-propenyl)oxy]imino]propyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-onepyrithiobac, 2-chloro-6-[(4,6-dimethoxy-2-pyrimidinyl)thio]benzoic acidlarge crabgrass, Digitaria sanguinalis (L.) Scop. # DIGSAAir assistdriftlow-volume sprayingCOC, crop oil concentrateDAT, days after treatmentLV, low volumeNIS, nonionic surfactantULV, ultra low volumePOST, postemergencePPI, preplant incorporated
Type
Research
Information
Weed Technology , Volume 12 , Issue 1 , March 1998 , pp. 185 - 189
Copyright
Copyright © 1997 by the Weed Science Society of America 

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