Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-11-24T14:46:08.157Z Has data issue: false hasContentIssue false
  • English
  • Français

Interaction of Diclofop-Methyl and MCPA on Wild Oats (Avena fatua)

Published online by Cambridge University Press:  12 June 2017

F. A. Qureshi  and
W. H. Vanden Born
W. H. Vanden Born
Affiliation:
Dep. Plant Sci., Univ. of Alberta, Edmonton, Alberta, Canada T6G 2E3
Get access Rights & Permissions [Opens in a new window]

Abstract

Diclofop-methyl {methyl 2-[4-(2,4-dichlorophenoxy)phenoxy] propanoate} loses part of its activity on wild oats (Avena fatua L.) when it is applied in combination with ester or amine formulations of MCPA {[4-chloro-o-tolyl)oxy] acetic acid.} Uptake of diclofop-methyl is reduced in the presence of commercial formulations of MCPA, particularly amine formulations, which are only partly compatible with the diclofop-methyl formulation. With added MCPA, regardless of formulation, hydrolysis of diclofop-methyl to the acid diclofop is slowed down, both in intact wild oat plants and in a crude leaf extract. At the same time, conversion of any acid formed to inactive conjugates is accelerated in the presence of MCPA. It is concluded that the loss of activity of diclofop-methyl by MCPA can be accounted for by the effects of MCPA on uptake and metabolic conversion of diclofop-methyl.

Keywords

Metabolismuptakeantagonismherbicide
Type
Research Article
Information
Weed Science , Volume 27 , Issue 2 , March 1979 , pp. 202 - 205
Copyright
Copyright © 1979 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Anderson, W. P. 1977. Weed Science: Principles. West Publishing Co., New York. 598 pp.Google Scholar
2. Gorbach, S. G., Kuenzler, K., and Asshauer, J. 1977. On the metabolism of Hoe 23408 OH in wheat. J. Agric. Food Chem. 25:507–511.CrossRefGoogle Scholar
3. O'Sullivan, P. A., Friesen, H. A., and Vanden Born, W. H. 1977. Influence of herbicides for broadleaved weeds and adjuvants with dichlorfop methyl on wild oat control. Can. J. Plant Sci. 57:117–125.CrossRefGoogle Scholar
4. Qureshi, F. A., Vanden Born, W. H., and Schraa, R. J. 1977. Combinations of dichlorfop methyl and MCPA ester on wild oats and Tartary buckwheat in wheat. Can. Weed Comm. Res. Rep., West. Sect. pp. 384–385.Google Scholar
5. Reid, C. P. P. and Hurtt, W. 1969. Translocation and distribution of picloram in bean plants associated with nastic movements. Plant Physiol. 44:1393–1396.CrossRefGoogle ScholarPubMed
6. Shimabukuro, R. H., Walsh, W. C., and Hoerauf, R. A. 1977. Metabolism and selectivity of dichlofop-methyl in wild oat (Avena fatua L.) and wheat. Abstr. Weed Sci. Soc. Am. pp. 94–95.Google Scholar
7. Shirtliffe, B. P. and Kaleta, J. R. 1977. Wild oat control with Mataven tank-mixed and time intervals with MCPA ester. Can. Weed Comm. Res. Rep., West. Sect. pp. 390–391.Google Scholar
8. Todd, B. G. and Stobbe, E. H. 1977. Selectivity of dichlofop methyl among wheat, barley, wild oat (Avena fatua), and green foxtail (Setaria viridis) . Weed Sci. 25:382–385.CrossRefGoogle Scholar
9. Todd, B. G. and Stobbe, E. H. 1977. Metabolism of dichlofop-methyl in wheat and wild oat (Avena fatua L.). Abstr. Weed Sci. Soc. Am. p. 96.Google Scholar
10. Vanden Born, W. H., Schraa, R. J., and Cole, D. E. 1977. Time intervals in combinations of dichlorfop methyl and 2,4-D on green foxtail, wild oats and wheat. Can. Weed Comm. Res. Rep., West. Sect. p. 45 3.Google Scholar
11. Walter, H., Müller, F. and Koch, W. 1977. Interaktion von Diclofopmethyl mit anderen Nachauflaufherbiziden. Z. Pflanzenkr., Sonderheft VIII:389–402.Google Scholar