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Weed Control in Florida Pastures With the Use of Aminocyclopyrachlor

Published online by Cambridge University Press:  20 January 2017

Daniel G. Abe
Affiliation:
Agronomy Department, University of Florida Range Cattle Research and Education Center, 3401 Experiment Station, Ona, FL 33865
Brent A. Sellers*
Affiliation:
Agronomy Department, University of Florida Range Cattle Research and Education Center, 3401 Experiment Station, Ona, FL 33865
Jason A. Ferrell
Affiliation:
Agronomy Department, University of Florida, P.O. Box 110500, Gainesville, FL 32611
Ramon G. Leon
Affiliation:
Agronomy Department, University of Florida West Florida Research and Education Center, 4253 Experiment Drive, Jay, FL 32565
D. Calvin Odero
Affiliation:
Agronomy Department, University of Florida Everglades Research and Education Center, 3200 East Palm Beach Road, Belle Glade, FL 33430
*
Corresponding author's E-mail: sellersb@ufl.edu.

Abstract

Studies under Florida conditions for susceptibility of pasture weed species to the new herbicide, aminocyclopyrachlor (ACP), are essential. Sensitivity of weed species was dependent upon the species and environment. Whitehead broom was not susceptible to ACP. Dogfennel control was consistently above 85% 1 yr after treatment with ACP at 140 g ha−1 and all ACP premixes. Milkpea was initially sensitive to all ACP treatments, but regrowth was evident in all treatments after 1 yr at one location. All ACP treatments resulted in 100% control of tropical soda apple 1 yr after treatment at one location, but less than 50% control at a second location. Herbicide applications with ACP, when labeled, will likely provide good to excellent control (80 to 100%) of several weed species.

Los estudios bajo condiciones de Florida sobre la susceptibilidad a aminocyclopyrachlor (ACP) de especies de malezas en pastos, son esenciales. La sensibilidad de especies de malezas dependió de la especie y del ambiente. Spermacoce verticillata no fue susceptible a ACP. El control de Eupatorium capillifolium estuvo consistentemente arriba de 85% 1 año después del tratamiento con ACP a 140 g ha−1 y con todas las premezclas con ACP. Galactia sp. fue inicialmente sensible a todos los tratamientos con ACP, pero rebrotes fueron evidentes en todos los tratamientos después de un año, en una localidad. Todos los tratamientos con ACP resultaron en 100% de control de Solanum viarum a un año después del tratamiento en una localidad, pero solamente en 50% de control en una segunda localidad. La aplicación de herbicidas con ACP, cuando esté registrado, probablemente propiciará un control de bueno a excelente (80 a 100%) de varias especies de malezas.

Type
Research Article
Copyright
Copyright © Weed Science Society of America 

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Footnotes

Associate Editor for this paper: Ian Burke, Washington State University.

References

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