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Honeyvine Milkweed (Ampelamus albidus) Response to Foliar Herbicides

Published online by Cambridge University Press:  12 June 2017

Loren J. Moshier
Affiliation:
Dep. Agron., Kansas State Univ., Manhattan, KS 66506
Oliver G. Russ
Affiliation:
Dep. Agron., Kansas State Univ., Manhattan, KS 66506
Joseph P. O'Connor
Affiliation:
Dep. Agron., Kansas State Univ., Manhattan, KS 66506
Mark M. Claassen
Affiliation:
Dep. Agron., Kansas State Univ., Manhattan, KS 66506

Abstract

A 3-yr experiment and a 1-yr experiment in continuous winter wheat (Triticum aestivum L. ‘Newton’) and two 3-yr experiments in continuous grain sorghum [Sorghum bicolor L. (Moench.) ‘Co-op SG-10’ or ‘DeKalb DX-42Y’] were conducted to evaluate selected foliage-applied herbicides for control of honeyvine milkweed [Ampelamus albidus (Nutt.) Britt # AMPAL]. Glyphosate [N-(phosphonomethyl)-glycine] applied at 3.4 kg ae/ha, glyphosate plus dicamba (3,6-dichloro-2-methoxybenzoic acid) applied at 1.7 plus 0.6 kg ae/ha, and glyphosate plus 2,4-D [(2,4-dichlorophenoxy)acetic acid] applied at 1.7 plus 1.1 kg ae/ha in summer between harvesting and planting winter wheat and in spring prior to planting grain sorghum effectively reduced honeyvine milkweed regrowth 1 yr after initial application in both cropping systems. One or two additional annual applications did not provide complete control in either cropping system. Applications of 2,4-D at 2.2 kg ae/ha dicamba at 1.1 kg ae/ha and 2,4-D plus dicamba at 1.1 plus 0.6 kg ae/ha were effective if applied consecutively for 3 yr in continuous winter wheat but not in continuous grain sorghum.

Type
Weed Control and Herbicide Technology
Copyright
Copyright © 1986 by the Weed Science Society of America 

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References

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