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Movement of 14C-Bentazon with Adjuvants into Common Cocklebur (Xanthium strumarium) and Velvetleaf (Abutilon theophrasti)

Published online by Cambridge University Press:  12 June 2017

Brian C. Levene  and
Micheal D. K. Owen
Brian C. Levene
Affiliation:
Iowa State Univ., 2104 Agronomy Hall, Ames, IA 50011
Micheal D. K. Owen
Affiliation:
Iowa State Univ., 2104 Agronomy Hall, Ames, IA 50011
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Abstract

Absorption of 14C-bentazon from the leaf surfaces of common cocklebur and velvetleaf was rapid and most occurred within 4 h after foliar application. Greater 14C in the epicuticular wax (ECW) did not correlate with higher radioactivity in the leaf tissue. There was significantly less ECW on the “mature” leaves of common cocklebur and “juvenile” leaves of velvetleaf. However, the “mature” leaves exhibited greater 14C absorption for both species. The use of 28% urea ammonium nitrate increased 14C-absorption when compared with crop oil concentrate and with no adjuvant.

Keywords

Bentazon, 3-(1-methylethyl)-(1H)-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxidecommon cocklebur, Xanthium strumarium L. # XANSTvelvetleaf, Abutilon theophrasti Medicus, # ABUTHCOCcrop oil concentrateepicuticular wax28% urea ammonium nitrateABUTHXANST
Type
Research
Information
Weed Technology , Volume 8 , Issue 1 , March 1994 , pp. 93 - 98
Copyright
Copyright © 1994 by the Weed Science Society of America 

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References

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