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Bahiagrass Tolerance to Aminocyclopyrachlor in Florida

  • Daniel G. Abe (a1), Brent A. Sellers (a1), Jason A. Ferrell (a2), Ramon G. Leon (a3) and D. Calvin Odero (a4)...


Two varieties of bahiagrass were evaluated under Florida conditions for forage tolerance to the new herbicide, aminocyclopyrachlor (ACP), which is essential for product development decisions. Herbicide treatments included ACP alone at 70 and 140 g ai ha−1, ACP + chlorsulfuron at 69 + 27 and 138 + 54 g ai ha−1, ACP + 2,4-D amine at 70 + 532 g ai ha−1 and 140 + 1,064 g ai ha−1, ACP + triclopyr-amine at 70 + 140 g ai ha−1 and 140 + 280 g ai ha−1, and ACP + metsulfuron at 46 + 7, 78 + 12, and 168 + 26 g ai ha−1, and also included a nontreated check. ‘Argentine’ bahiagrass was the most tolerant forage species, and ‘Pensacola’ bahiagrass was sensitive to ACP + metsulfuron and initially to ACP + chlorsulfuron. Herbicide applications using ACP, when labeled, will likely provide good to excellent control of several weed species, with little long-term impact on bahiagrass forage production when the cultivar is known.

Dos variedades de pasto bahia fueron evaluadas en Florida para determinar la tolerancia del forraje al nuevo herbicida aminocyclopyrachlor (ACP), la cual es esencial para la toma de decisiones en relación al desarrollo del producto. Los tratamientos con herbicidas incluyeron ACP solo a 70 y 140 g ai ha−1, ACP + chlorsulfuron a 69 + 27 y 138 + 54 g ai ha−1, ACP + 2,4-D amine a 70 + 532 g ai ha−1 y 140 + 1,064 g ai ha−1, ACP + triclopyr-amine a 70 + 140 g ai ha−1 y 140 + 280 g ai ha−1, y ACP + metsulfuron a 46 + 7, 78 + 12, y 168 + 26 g ai ha−1, y además se incluyó un testigo sin tratamiento. El pasto bahia ‘Argentine’ fue el más tolerante de las especies de forraje, y el pasto bahia ‘Pensacola’ fue sensible a ACP + metsulfuron e inicialmente a ACP + chlorsulfuron. Las aplicaciones de herbicidas usando ACP, cuando este herbicida esté registrado, brindarán un control de bueno a excelente de varias especies de malezas, con poco daño en el largo plazo sobre la producción de forraje del pasto bahia cuando se conoce el cultivar.


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Associate editor for this paper: Kevin Bradley, University of Missouri.



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Bukun, B, Lindenmayer, RB, Nissen, SJ, Westra, P, Shaner, DL, Brunk, G (2010) Absorption and translocation of aminocyclopyrachlor and aminocyclopyrachlor-methyl in Canada thistle (Cirsium arvense). Weed Sci 58: 96102
Bunnell, BT, Baker, RD, McCarty, LB, Hall, DW, Colvin, DL (2003) Differential response of five bahiagrass (Paspalum notatum) cultivars to metsulfuron. Weed Technol 17: 550553
Durham, MW, Ferrell, JA, Minogue, PJ, MacDonald, GE, Sellers, BA (2016) Evaluation of aminocyclopyrachlor herbicide for turf tolerance and weed control on Florida roadside right-of-ways. Weed Technol 30: 190197
Enloe, SF, Belcher, J, Loewenstein, N, Aulakh, JS, van Santen, E (2012) Cogongrass control with aminocyclopyrachlor in pastures. Forage Grazinglands. DOI: 10.1094/FG-2012-0828-02-RS
Ferrell, J, Sellers, B, Jennings, E (2012) Herbicidal control of largeleaf lantana (Lantana camara). Weed Technol 26: 554558
Flessner, ML, McElroy, JS, Wehtje, GR (2011) Quantification of warm-season turfgrass injury from triclopyr and aminocyclopyrachlor. Weed Technol 25: 367373
Harmoney, KR, Stahlman, PW, Geier, PW, Rupp, R (2012) Effects of a new herbicide (aminocyclopyrachlor) on buffalograss and forbs in shortgrass prairie. Weed Technol 26: 455459
Interrante, SM, Sollenberger, LE, Blount, AR, White, UR, Liu, K, Coleman, SW (2009) Defoliation management of bahiagrass germplasm affects dry matter yield and herbage nutritive value. Agron J 101: 989995
Kyser, GB, DiTomaso, JM (2013) Effect of timing on chemical control of dalmatian toadflax (Linaria dalmatica) in California. Invasive Plant Sci Manage 6: 362370
Lindenmayer, RB, Nissen, SJ, Westra, PP, Shaner, DL, Brunk, G (2013) Aminocyclopyrachlor absorption, translocation and metabolism in field bindweed (Convolvulus arvensis). Weed Sci 61: 6367
McCullough, PE, Hart, SE, Brosnan, JT, Breeden, GK (2011) Aminocyclopyrachlor enhances fenoxaprop efficacy for smooth crabgrass control. Weed Technol 25: 506510
Minogue, PJ, Enloe, SF, Osiecka, A, Lauer, DK (2011) Comparison of aminocyclopyrachlor to common herbicides for kudzu (Pueraria montana) management. Invasive Plant Sci Manage 4: 419426
Newman, YC, Vendramini, J, Blount, A (2010) Bahiagrass (Paspalum notatum): Overview and Management (SS-AGR-332). Gainesville, FL: University of Florida Institute of Food and Agricultural Sciences. Accessed July 1, 2014
Sellers, BA, Ferrell, JA (2011) Forage Grass Tolerance to Pasture Herbicides (SS-AGR-87). Gainesville, FL: University of Florida Institute of Food and Agricultural Sciences. Accessed July 4, 2014
Sellers, BA, Ferrell, JA (2014) Weed Management in Pastures and Rangeland–2014 (SS-AGR-08). Gainesville, FL: University of Florida Institute of Food and Agricultural Sciences. Accessed July 1, 2014
Shaner, DL, ed (2014) Herbicide Handbook. 10th edn. Lawrence, KS: Weed Science Society of America. Pp 4146
[USDA-ERS] U.S. Department of Agriculture–Economic Research Service (2012) Data set: grassland pasture and range, 1945–2007, by state. Accessed November 12, 2012
Vendramini, J (2010) Forage evaluation and quality in Florida. 21st Florida Ruminant Nutrition Symposium. Accessed September 1, 2014



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