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Effect of Acifluorfen and Bentazon on Absorption and Translocation of Haloxyfop and DPX-Y6202 in Quackgrass (Agropyron repens)

Published online by Cambridge University Press:  12 June 2017

Jerry L. Wilhm ,
William F. Meggitt  and
Donald Penner
Jerry L. Wilhm
Affiliation:
Dep. Crop Soil Sci., Michigan State Univ., East Lansing, MI 48824
William F. Meggitt
Affiliation:
Dep. Crop Soil Sci., Michigan State Univ., East Lansing, MI 48824
Donald Penner
Affiliation:
Dep. Crop Soil Sci., Michigan State Univ., East Lansing, MI 48824
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Abstract

Translocation of 14C-haloxyfop {2-[4-[[3-chloro-5-(trifluoromethyl)-2-pyridinyl] oxy] phenoxy] propanoic acid} in quackgrass [Agropyron repens (L.) Beauv. # AGRRE] from the treated area (the middle 2.5 cm of the second of three leaves) to the lower leaves was reduced in plants in which 0.56 kg/ha of acifluorfen {5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acid} or bentazon [3-1-methylethyl)-(1H)-2,1,3-benzothiadiazin-4(3H)-one-2,2-dioxide] was added in tank mixture to a 0.07 kg ai/ha application of haloxyfop. Reduced translocation did not occur when haloxyfop rates were increased to 0.28 and 1.1 kg/ha. Bentazon reduced absorption of 14C-DPX-Y6202 {2-[4-[(6-chloro-2-quinoxalinyl)oxy] phenoxy] propionic acid} when applied in tank mixtures with 0.28 and 1.1 kg ai/ha DPX-Y6202. There was less 14C-DPX-Y6202 in the leaf tips of plants treated with 0.07 kg/ha DPX-Y6202 plus 0.56 kg/ha acifluorfen in tank mixture. Relatively small amounts of both 14C-haloxyfop and DPX-Y6202 accumulated in the rhizome and adjacent shoots and acifluorfen did not influence translocation to these plant parts. Considerably more 14C-haloxyfop than 14C-DPX-Y6202 was absorbed by quackgrass. Treatment of quackgrass with acifluorfen or bentazon 24 h prior to application of 14C-haloxyfop or 14C-DPX-Y6202 did not influence absorption or translocation.

Keywords

Herbicide interactionAGRRE
Type
Physiology, Chemistry, and Biochemistry
Information
Weed Science , Volume 34 , Issue 3 , May 1986 , pp. 333 - 337
Copyright
Copyright © 1986 by the Weed Science Society of America 

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References

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