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The Effect of Dicamba and Picloram on Quackgrass, Bromegrass and Kentucky Bluegrass

Published online by Cambridge University Press:  12 June 2017

W. H. Vanden Born
W. H. Vanden Born*
Affiliation:
Weed Science and Crop Ecology, Department of Plant Science, University of Alberta, Edmonton, Alberta
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Abstract

Watering with 1 surface cm or more following spray treatment with dicamba (2-methoxy-3,6-dichlorobenzoic acid) and picloram (4-amino-3,5,6-trichloropicolinic acid) markedly increased inhibition of shoot growth from rhizome sections of quackgrass (Agropyron repens (L.) Beauv.) and bromegrass (Bromus inermis Leyss). Shoots were most sensitive to the herbicides at early stages of development. Bromegrass and quackgrass were about equally susceptible to the two herbicides. Uptake through roots or rhizomes was more effective than foliar uptake. Kentucky bluegrass in established sod was not injured by dosages of the two herbicides that killed or controlled quackgrass. Young stands of Kentucky bluegrass were more sensitive.

Type
Research Article
Information
Weeds , Volume 13 , Issue 4 , October 1965 , pp. 309 - 312
Copyright
Copyright © 1965 Weed Science Society of America 

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References

Literature Cited

1. Carder, A. C. 1963. Monuron for eradication of quackgrass. Weeds 11: 308–310.Google Scholar
2. Corns, W. G., Vanden Born, W. H. and Schraa, R. J. 1964. Selective chemical control of couchgrass and bromegrass in Kentucky bluegrass sod. Can. J. Plant Sci. 44:296–297.CrossRefGoogle Scholar
3. Friesen, H. A. 1965. The movement and persistence of dicamba in soil. Weeds 13:30–33.Google Scholar