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Asulam Controls Western Bracken (Pteridium aquilinum) on Forest Land in Western Oregon

Published online by Cambridge University Press:  12 June 2017

R. E. Stewart ,
A. W. Cooley  and
A. Guardigli
R. E. Stewart
Affiliation:
Timber Manage. Res., U.S. Dep. Agric., For. Serv., Washington, D.C. 20013
A. W. Cooley
Affiliation:
Rhodia, Inc., Agric. Div., Monmouth, Junction, NJ 08852
A. Guardigli
Affiliation:
Rhodia, Inc., Agric. Div., Monmouth, Junction, NJ 08852
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Abstract

Aerial sprays of asulam (methyl sulfanilylcarbamate) applied at 3.4 or 6.7 kg/ha to forest plantations in western Oregon effectively controlled western bracken [Pteridium aquilinum (L.) Kuhn var. pubescens Underw.] without damaging Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] seedlings. Asulam also did not damage noble fir (Abies procera Rehd.) seedlings if applied without a surfactant. The half-life of asulam in forest soils ranged from less than 7 to 18 days and vertical movement in the soil profile was minimal. No herbicide residues were found in runoff water from treated areas up to 208 days after application.

Type
Research Article
Information
Weed Science , Volume 27 , Issue 6 , November 1979 , pp. 589 - 594
Copyright
Copyright © 1979 by the Weed Science Society of America 

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References

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