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Chemical and Mechanical Control of Dogfennel (Eupatorium capillifolium)

Published online by Cambridge University Press:  12 June 2017

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

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.

Type
Research
Copyright
Copyright © 1994 by the Weed Science Society of America 

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