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Chemical and Mechanical Control of Dogfennel (Eupatorium capillifolium)

Published online by Cambridge University Press:  12 June 2017

Gregory E. Macdonald ,
Barry J. Brecke ,
Daniel L. Colvin  and
Donn G. Shilling
Gregory E. Macdonald
Affiliation:
Univ. Florida, Agronomy Dep., Gainesville, FL 32611
Barry J. Brecke
Affiliation:
Univ. Florida, Agronomy Dep., Gainesville, FL 32611
Daniel L. Colvin
Affiliation:
Univ. Florida, Agronomy Dep., Gainesville, FL 32611
Donn G. Shilling
Affiliation:
Univ. Florida, Agronomy Dep., Gainesville, FL 32611
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Abstract

In field studies effective dogfennel control was obtained with glyphosate, dicamba + 2,4-D, triclopyr + 2,4-D, and fluroxypyr at rates of 1.68, 0.44 + 1.25, 0.56 + 1.12, and 0.28 kg ai/ha, respectively, applied after dogfennel was 75 cm tall. Mowing alone reduced dogfennel regrowth by 81% and when combined with dicamba + 2,4-D or triclopyr + 2,4-D regrowth was reduced over 94%. Triclopyr, dichlorprop, and sulfometuron also controlled dogfennel greater than 90% but metsulfuron did not.

Keywords

Dicamba, 3,6-dichloro-2-methoxybenzoic aciddichlorprop, (±)-2-(2,4-dichlorophenoxy)propanoic acidfluroxypyr, [(4-amino-3,5-dichloro-6-fluoro-2-pyridinyl)oxy]acetic acidglyphosate, N-(phosphonomethyl)glycinemetsulfuron, 2-[[[[(4-methoxy-6-methyl-l,3,5-triazin-2-yl)amino]carbonyl]amino]sulfonyl]benzoic acidsulfometuron, 2-[[[[(4,6-dimethyl-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]benzoic acidtriclopyr, [(3,5,6-trichloro-2-pyridinyl)oxy]acetic acid2,4-D, (2,4-dichlorophenoxy)acetic aciddogfennel, Eupatorium capillifolium (Lam.) Small # EUPCPDevelopmental stagemowingperennialregrowthgrowth stagedicambadichlorpropfluroxypyrglyphosatemetsulfuronsulfometurontriclopyr2,4-DEUPCP
Type
Research
Information
Weed Technology , Volume 8 , Issue 3 , September 1994 , pp. 483 - 487
Copyright
Copyright © 1994 by the Weed Science Society of America 

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