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Spray Date Effects on Behavior of Herbicides on Brush

Published online by Cambridge University Press:  12 June 2017

Homer A. Brady
Homer A. Brady*
Affiliation:
1102 Timber Management Research Project, Southern Forest Exp. Sta., Forest Service, U. S. Dep. of Agr., Pineville, Louisiana
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Abstract

Dicamba (3,6-dichloro-o-anisic acid), 1,1′-dimethyl-4,4′-dipyridinium ion (paraquat), and (2,4,5-trichlorophenoxy)-acetic acid (2,4,5-T) were applied as foliar sprays to 4-year-old sweetgum (Liquidambar styraciflua L.), green ash (Fraxinus pennsylvanica Marsh.), water oak (Quercus nigra L.), and loblolly pine (Pinus taeda L.). For the three hardwood species the amount of herbicide absorbed and translocated, as measured 4 days after application, was correlated closely with tops killed 1 year later. Applications in May were more effective than those made later in the growing season. Loblolly pine was defoliated by all herbicides but recovered the second season after spraying.

Type
Research Article
Information
Weed Science , Volume 19 , Issue 3 , May 1971 , pp. 200 - 202
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

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