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Influence of Postemergence Herbicides on Tropical Soda Apple (Solanum viarum) and Bahiagrass (Paspalum notation)

Published online by Cambridge University Press:  12 June 2017

Rais U. Akanda ,
J. Jeffrey Mullahey ,
Clyde C. Dowler  and
Donn G. Shilling
Rais U. Akanda
Affiliation:
Southwest Florida Research and Education Center, University of Florida, Immokalee, FL 33934
J. Jeffrey Mullahey
Affiliation:
Southwest Florida Research and Education Center, University of Florida, Immokalee, FL 33934
Clyde C. Dowler
Affiliation:
US Department of Agriculture, Agricultural Research Service, Tifton, GA 31793
Donn G. Shilling
Affiliation:
Department of Agronomy, University of Florida, Gainesville, FL 32611
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Abstract

Greenhouse and field experiments were conducted to evaluate herbicidal efficacy on tropical soda apple and bahiagrass. Acifluorfen, clopyralid, dicamba, fluroxypyr, picloram, and triclopyr were the most effective postemergence herbicides, providing > 90% control of tropical soda apple plants with no injury to bahiagrass 145 days after treatment (DAT). Glyphosate and imazapyr resulted in effective (> 90%) control of both seedling and mature tropical soda apple plants. However, these herbicides caused severe (> 90%) damage to bahiagrass. Control of tropical soda apple with 2,4-D, AC-263,222, diuron, fomesafen, lactofen, MSMA, sulfometuron, and triasulfuron was unacceptable (> 90%).

Keywords

2,4-D, (2,4-dichlorophenoxy)acetic acidacifluorfen, 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acidclopyralid, 3,6-dichloro-2-pyridinecarboxylic aciddicamba, 3,6-dichloro-2-methoxybenzoic acidfluroxypyr, [(4-amino-3,5-dichloro-6-fluoro-2-pyridinyl)oxy]acetic acidglyphosate, N-(phosphonomethyl)glycineMSMA, monosodium salt of MAApicloram, 4-amino-3,5,6-trichloro-2-pyridinecarboxylic acidtriclopyr, [(3,5,6-trichloro-2-pyridinyl)oxy]acetic acidbahiagrass, Paspalum notatum Fluegge # PASNOtropical soda apple, Solanum viarum Dunal SOLVIBroadleaf weedperennial weed control2,4-DAC-263,222acifluorfenclopyraliddicambadiuronfluroxypyrfomesafenglyphosateimazapyrlactofenMSMApicloramsulfometurontriasulfurontriclopyrDAT, days after treatmentTSA, tropical soda applePOST, postemergence
Type
Research
Information
Weed Technology , Volume 11 , Issue 4 , December 1997 , pp. 656 - 661
Copyright
Copyright © 1997 by the Weed Science Society of America 

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