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Influence of Sulfonylurea and Other Herbicides on Selected Woody and Herbaceous Species

Published online by Cambridge University Press:  12 June 2017

Robert E. Meyer  and
Rodney W. Bovey
Robert E. Meyer
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Dep. Range Sci., Texas A&M Univ., College Station, TX 77843
Rodney W. Bovey
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Dep. Range Sci., Texas A&M Univ., College Station, TX 77843
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Abstract

Chlorsulfuron and metsulfuron were effective on Texas whitebrush, killing 70 to 75% of the plants at 0.28 kg ai ha, marginally effective on Macartney rose, killing 15 to 43% of the plants at 1.12 kg ha, but ineffective on honey mesquite and huisache, killing no more than 10% of the plants at 1.12 kg ha. Sulfometuron was ineffective on all woody species at 1.12 kg ai ha. Clopyralid and picloram were effective, killing 70 to 92% of the huisache at 2.24 kg ae ha. Tebuthiuron killed 72% of the Texas whitebrush at 1.12 kg ai ha. Sulfometuron generally reduced herbaceous plant cover the year of application. Chlorsulfuron and metsulfuron often resulted in increased grass cover the year of application. Most herbicides reduced broadleaf weeds the year of application. Woolly croton often was the first prominent broadleaf species to return to areas treated with clopyralid and sulfometuron. Few differences occurred among herbicides in herbaceous weed cover the year following treatment.

Keywords

clopyralid, 3,6-dichloro-2-pyridinecarboxylic acidpicloram, 4-amino-3,5,6-trichloro-2-pyridinecarboxylic acidhoney mesquite, Prosopis glandulosa Torr. ♯ PRCJGhuisache, Acacia farnesiana (L.) Willd. ♯ ACAFAwoolly croton, Croton capitatus Michx. ♯ CVNCPClopyralidchlorsulfurondicamba2,4-D, metsulfuronpicloramsulfometurontriclopyrProsopis glandulosaAcacia farnesianaRosa bracteataAloysia gratissimaCroton capitatusPRCJGACAFAROSBCALYLYCVNCP
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 38 , Issue 3 , May 1990 , pp. 249 - 255
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

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