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Foliar Absorption and Translocation of Dicamba from Aqueous Solution and Dicamba-Treated Soil Deposits

Published online by Cambridge University Press:  12 June 2017

Kassim Al-Khatib ,
Robert Parker  and
E. Patrick Fuerst
Kassim Al-Khatib
Affiliation:
Irrigated Agric. Res. and Ext. Cent., Wash. State Univ. Prosser, WA 99350
Robert Parker
Affiliation:
Irrigated Agric. Res. and Ext. Cent., Wash. State Univ. Prosser, WA 99350
E. Patrick Fuerst
Affiliation:
Dep. Crop and Soils, Wash. State Univ., Pullman, WA 99163
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Abstract

This study was conducted to compare foliar absorption and translocation of dicamba applied to plants as an aqueous solution or as dicamba-treated soil deposits. When applied as an aqueous solution, 65 to 95% of 14C-dicamba was absorbed by pea, alfalfa, and grape; whereas, limited absorption (0.4 to 4.7%) occurred from dicamba-treated soil. Based on dose-response evaluation, the low levels absorbed from treated soil are unlikely to cause crop damage. 14C-dicamba translocation was more than 80% of absorbed 14C in pea, alfalfa, and grape. Acropetal translocation exceeded basipetal translocation.

Keywords

Dicamba, 3,6-dichloro-2-methoxybenzoic acidalfalfa, Medicago sativa L.grape, Vitis vinifera L.pea, Pisum sativum L.Crop injuryherbicide drift
Type
Research
Information
Weed Technology , Volume 6 , Issue 1 , March 1992 , pp. 57 - 61
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

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