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Resistance of Goosegrass (Eleusine indica) to Dinitroaniline Herbicides

Published online by Cambridge University Press:  12 June 2017

Laurence C. Mudge ,
Billy J. Gossett  and
Tim R. Murphy
Laurence C. Mudge
Affiliation:
Agron. Dep., Clemson Univ., Clemson, SC 29631
Billy J. Gossett
Affiliation:
Agron. Dep., Clemson Univ., Clemson, SC 29631
Tim R. Murphy
Affiliation:
Agron. Dep., Clemson Univ., Clemson, SC 29631
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Abstract

The presence of a dinitroaniline-resistant biotype of goosegrass [Eleusine indica (L.) Gaertner. ♯3 ELEIN] was confirmed in the northeastern area of South Carolina. It was also found in seven adjoining counties. It showed resistance to seven dinitroaniline herbicides but not to herbicides from six other chemical groups. One biotype was not affected by trifluralin (α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine) at 3.4 kg ai/ha where a dinitroaniline-susceptible biotype was controlled at 0.3 kg/ha. Under similar conditions, another biotype showed resistance to trifluralin at 0.6 kg/ha but was controlled at 1.1 kg/ha, indicating that at least two unique biotypes may exist.

Keywords

Weed resistanceweed biotypestrifluralinELEIN
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 32 , Issue 5 , September 1984 , pp. 591 - 594
Copyright
Copyright © 1984 by the Weed Science Society of America 

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References

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