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Degradation of Benefin and DCPA in Thatch and Soil from a Kentucky Bluegrass (Poa pratensis) Turf

Published online by Cambridge University Press:  12 June 2017

K. A. Hurto ,
A. J. Turgeon  and
M. A. Cole
K. A. Hurto
Affiliation:
Dep Plant and Soil Sci., Univ. of Massachusetts, Amherst, MA 01003
A. J. Turgeon
Affiliation:
Dep Hortic., Univ. of Illinois, Urbana, IL 61801
M. A. Cole
Affiliation:
Dep. Agron., Univ. of Illinois, Urbana, IL 61801
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Abstract

The rates of degradation of 14C-benefin (N-butyl-N-ethyl-α,α,α-trifluoro-2,6-dinitro-p-toluidine) and 14C-DCPA (dimethyl tetrachloroterephthalate) were significantly faster in thatch than in soil from a Kentucky bluegrass (Poa pratensis L.) turf. These results suggest that herbicides applied preemergence in turf will persist for shorter periods of time because of the carbon-enriched medium (thatch) and that higher rates or more frequent applications may be required to maintain concentrations at effective levels.

Keywords

Herbicide persistenceplant litter
Type
Research Article
Information
Weed Science , Volume 27 , Issue 2 , March 1979 , pp. 154 - 157
Copyright
Copyright © 1979 by the Weed Science Society of America 

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References

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