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1 October 2016 Bahiagrass Tolerance to Aminocyclopyrachlor in Florida
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Abstract

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.

Nomenclature: Aminocyclopyrachlor; chlorsulfuron; metsulfuron; triclopyr; bahiagrass, Paspalum notatum Flüggé.

Daniel G. Abe, Brent A. Sellers, Jason A. Ferrell, Ramon G. Leon, and D. Calvin Odero "Bahiagrass Tolerance to Aminocyclopyrachlor in Florida," Weed Technology 30(4), 943-948, (1 October 2016). https://doi.org/10.1614/WT-D-16-00060.1
Received: 15 April 2016; Accepted: 1 July 2016; Published: 1 October 2016
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