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Horsenettle (Solanum carolinense) Control in Tall Fescue (Festuca arundinacea) and Clover (Trifolium sp.) Pastures with Mixtures of 2,4-D and Picloram

Published online by Cambridge University Press:  20 January 2017

Joseph E. Beeler ,
G. Neil Rhodes ,
Gary E. Bates ,
Christopher L. Main  and
Thomas C. Mueller
Joseph E. Beeler
Affiliation:
Plant Sciences Department, 252 Ellington Plant Science Building, 2431 Joe Johnson Drive, University of Tennessee, Knoxville, TN 37996-4561
G. Neil Rhodes
Affiliation:
Plant Sciences Department, 252 Ellington Plant Science Building, 2431 Joe Johnson Drive, University of Tennessee, Knoxville, TN 37996-4561
Gary E. Bates
Affiliation:
Plant Sciences Department, 252 Ellington Plant Science Building, 2431 Joe Johnson Drive, University of Tennessee, Knoxville, TN 37996-4561
Christopher L. Main
Affiliation:
Plant Sciences Department, 252 Ellington Plant Science Building, 2431 Joe Johnson Drive, University of Tennessee, Knoxville, TN 37996-4561
Thomas C. Mueller*
Affiliation:
Plant Sciences Department, 252 Ellington Plant Science Building, 2431 Joe Johnson Drive, University of Tennessee, Knoxville, TN 37996-4561
*
Corresponding author's E-mail: [email protected]
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Abstract

Herbicide treatments (4:1 ratio of 2,4-D amine:picloram) at 0.7 and 1.4 kg ae/ha at early postemergence (10- to 15-cm horsenettle height), midpostemergence (early flower), and late postemergence (fruit initiation) applied both early and late in the growing season provided >80% horsenettle control. Horsenettle density at season's end in all treated plots was less than 0.25 stems/m2, whereas untreated plots contained about 5 stems/m2. Horsenettle control the next spring was between 47 and 66% for all rates and application timings, and horsenettle density in treated plots was less than 3 stems/m2 as opposed to about 6 stems/m2 in the untreated plots. Clover drilled into the treated area the year after herbicide application was injured, indicating clover establishment the season after application of this package mixture would be difficult.

Keywords

2,4-Dpicloramclover sp., Trifolium sp.horsenettle, Solanum carolinense L. #3 SOLCACrop toleranceEPOST, early postemergenceLPOST, late postemergenceMPOST, midpostemergence.
Type
Research
Information
Weed Technology , Volume 18 , Issue 4 , December 2004 , pp. 1091 - 1095
Copyright
Copyright © Weed Science Society of America 

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References

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