Hostname: page-component-78c5997874-j824f Total loading time: 0 Render date: 2024-11-10T10:20:38.689Z Has data issue: false hasContentIssue false

Preharvest Applications of Glyphosate for Yellow Toadflax (Linaria vulgaris) Control

Published online by Cambridge University Press:  12 June 2017

Mirza N. Baig*
Affiliation:
Monsanto Canada Inc., Edmonton, AB, Canada
A. Lloyd Darwent
Affiliation:
Agriculture and Agri-Food, P.O. Box 29 Beaverlodge, AB, Canada TOH OCO
K. Neil Harker
Affiliation:
Agriculture and Agri-Food, 6000 C
John T. O'Donovan
Affiliation:
E Trail, Lacombe, AB, Canada T4L 1W1
*
Corresponding author's E-mail: mnbaig@telusplanet.net.

Abstract

The effectiveness of preharvest applications of glyphosate on yellow toadflax was evaluated at five sites in Alberta from 1992 to 1994. At each site, glyphosate at 0.9 to 1.8 kg ae/ha was applied with or without nonionic surfactant and/or ammonium sulfate. Glyphosate at 2.7 kg/ha and glufosinate at 0.6 kg ai/ha were applied without additional adjuvants. The treatments were applied 7 to 10 d before crop harvest, when the majority of the yellow toadflax was in a flowering stage. Eleven to 12 mo after glyphosate application, yellow toadflax density was reduced by more than 80%. In most instances, there was no advantage in increasing the glyphosate rate above 0.9 kg/ha. The addition of nonionic surfactant and/or ammonium sulfate did not enhance glyphosate activity. Glufosinate did not control yellow toadflax in the year following treatment. Barley, canola, and flax yields in the year following applications were significantly higher in all preharvest glyphosate-treated plots than in untreated plots.

Type
Research
Copyright
Copyright © 1999 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.)

Footnotes

Current address of senior author: Agricultural Consultant, Consulting Options Inc., 5827-181 Street, Edmonton, AB, Canada T6M 1V7.

References

Literature Cited

Ali, S. 1999. Crop Protection 1999. Agdex 606-1. Edmonton, AB, Canada: Alberta Agriculture, Food, and Rural Development.Google Scholar
Baig, M. N., Harker, K. N., and Darwent, A. L. 1994. Tillage enhances yellow toadflax (Linaria vulgaris Mill.) control with glyphosate. Weed Sci. Soc. Am. Abstr. 34:16.Google Scholar
Baig, M. N., Harker, K. N., and O'Donovan, J. T. 1997. Effects of preharvest application of glyphosate on seed germination and seedling vigor of field peas (Pisum sativum). Weed Sci. Soc. Am. Abstr. 37:101.Google Scholar
Bakshi, T. S. and Coupland, R. T. 1960. Vegetative propagation in Linaria vulgaris . Can. J. Bot. 38:243249.Google Scholar
Blackshaw, R. E. 1989. HOE-39866 use in chemical fallow systems. Weed Technol. 3:420428.Google Scholar
Carder, A. C. 1963. Control of yellow toadflax (Linaria vulgaris) by grass competition plus 2,4-D. Weeds 11:1314.CrossRefGoogle Scholar
Cessna, A. J., Darwent, A. L., Kirkland, K. J., Townley-Smith, L., Marker, K. N., and Lefkovitch, L. P. 1994. Residues of glyphosate and its metabolite AMPA in wheal seed and foliage following preharvest applications. Can. J. Plant Sci. 74:653661.CrossRefGoogle Scholar
Crockett, L. J. 1977. Wildly Successful Plants: A Handbook of North American Weeds. New York: Collier Books. 268 p.Google Scholar
Crompton, C. W., McNeill, J., Stahevitch, A. E., and Wojtas, W. R. 1988. Preliminary Inventory of Canadian Weeds. Ottawa, ON, Canada: Agricultural Research Station Branch, Technical Bull. 1988–89E. 292 p.CrossRefGoogle Scholar
Darwent, A. L., Kirkland, K. J., Townley-Smith, L., Harker, K. N., Cessna, A. J., Lukow, O. M., and Lefkovitch, L. P. 1994. Effect of preharvest application of glyphosate on the drying, yield, and quality of wheat. Can. J. Plant Sci. 74:221230.Google Scholar
Darwent, A. L., Lobay, W., Yarish, W., and Harris, P. 1975. Distribution and importance in northwestern Alberta of toadflax and its insect enemies. Can. J. Plant Sci. 55:157162.Google Scholar
Harker, K. N., O'Donovan, J. T., and Blackshaw, R. E. 1995. Integrated management of yellow toadflax in a zero tillage system. In Lafond, G. P., Plas, H. M., and Smiths, E. G. eds. Bringing Conservation Technology to the Farm, PARI Factbook. Proceedings of the Conservation Workshop, November 26–28, Saskatoon, SK, Canada. pp. 7982.Google Scholar
Kirkland, K. J. 1990a. Effect of Desiccant Rate and Growth Stage on the Efficacy of Glyphosate on Tobin Canola. Expert Committee on Weeds, Research Report (Western Canada Section). Volume 2. pp. 744745.Google Scholar
Kirkland, K. J. 1990b. Effect of Desiccant Rate and Growth Stage on the Efficacy of Glyphosate on Westar Canola. Expert Committee on Weeds, Research Report (Western Canada Section). Volume 2. pp. 745746.Google Scholar
Kirkland, K. J. 1990c. Effect of Desiccant Rate and Growth Stage on the Efficacy of Glyphosate on Flax. Expert Committee on Weeds, Research Report (Western Canada Section). Volume 2. pp. 738739.Google Scholar
Kirkland, K. J. 1990d. Effect of Desiccant Rate and Growth Stage on the Efficacy of Glyphosate on Lentils. Expert Committee on Weeds, Research Report (Western Canada Section). Volume 2. pp. 739740.Google Scholar
Lajeunesse, S. E., Fay, P. K., Cooksey, D., Lacey, J. R., Nowierski, R. M., and Zamora, D. 1993. Dalmation and Yellow Toadflax: Weed of Pasture and Rangeland. Bozeman, MT: Montana State University, Extension Ser. 115. 13 p.Google Scholar
Lawes Agricultural Trust. 1990. GENSTAT—A Generalized Statistical Program. Oxford, UK: The Numerical Algorithms Group.Google Scholar
Lefkovitch, L. P. 1993. Some fundamental concepts in planning and analyzing field experiments. Suppl. J. Appl. Seed Prod. 11:2639.Google Scholar
McCullagh, P. and Nelder, J. A. 1989. Generalized Linear Models. London: Chapman and Hall. 409 p.Google Scholar
Morishita, D. W. 1991. Dalmation toadflax, yellow toadflax, black henbane, tansymustard: importance, distribution and control. In James, L. F., Evans, J. O., Ralphs, M. H., and Childs, R. D., eds. Noxious Range Weeds. Boulder, CO: Westview Press. pp. 399408.Google Scholar
Nadeau, L. B., Dale, M.R.T., and King, J. R. 1991. The development of spatial pattern in shoots of Linaria vulgaris (Scrophulariaceae) growing on fallow land or in a barley crop. Can. J. Bot. 69:25392544.Google Scholar
Nadeau, L. B., King, J. R., and Harker, K. N. 1992. Comparison of growth of seedlings and plants grown from root pieces of yellow toadflax (Linaria vulgaris). Weed Sci. 40:4347.CrossRefGoogle Scholar
O'Donovan, J. T. and McClay, A. S. 1987. Influence of Various Densities of Toadflax on Yield of Canola. Expert Committee on Weeds, Research Report (Western Canada Section). Volume 3. pp. 191192.Google Scholar
O'Donovan, J. T. and Newman, J. C. 1989. Influence of Yellow Toadflax on the Yield of Wheat. Expert Committee on Weeds, Research Report (Western Canada Section). Volume 3. p. 201.Google Scholar
Saner, M. A., Clements, D. R., Hall, M. A., Doohan, D. J., and Crompton, C. W. 1995. The biology of Canadian weeds. 105. Linaria vulgaris Mill. Can. J. Plant Sci. 75:525537.Google Scholar
Townley-Smith, L. 1992. Crop Desiccation in Peas. Expert Committee on Weeds, Research Report (Western Canada Section). Volume 2. pp. 872873.Google Scholar
Turner, D. J. 1985. Effect of glyphosate performance of formulation, additives and mixing with other herbicides. In Grossbard, E. and Atkinson, D., eds. The Herbicide Glyphosate. Toronto: Butterworths. pp. 221240.Google Scholar
Warren, R. 1957. Toadflax. Oregon Agricultural Extension Series Bull. 763. Corvallis, OR: Oregon State College. 4 p.Google Scholar