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Survey of Management Practices Affecting the Occurrence of Wild Oat (Avena fatua) Resistance to Acetyl-CoA Carboxylase Inhibitors

Published online by Cambridge University Press:  20 January 2017

Anne Légère*
Affiliation:
Agriculture and Agri-Food Canada, Soils and Crops Research and Development Centre, 2560 Hochelaga Boulevard, Sainte-Foy, QC, Canada G1V 2J3
Hugh J. Beckie
Affiliation:
Agriculture and Agri-Food Canada, Saskatoon Research Centre, 107 Science Place, Saskatoon, SK, Canada S7N 0X2
F. Craig Stevenson
Affiliation:
Department of Plant Sciences, University of Saskatchewan, Saskatoon, SK, Canada S7N 5A8
A. Gordon Thomas
Affiliation:
Agriculture and Agri-Food Canada, Saskatoon Research Centre, 107 Science Place, Saskatoon, SK, Canada S7N 0X2
*
Corresponding author's E-mail: [email protected].

Abstract

A survey conducted across agricultural ecoregions of Saskatchewan in 1996 revealed that wild oat (Avena fatua) populations resistant to acetyl-CoA carboxylase (ACCase) inhibitors were present in approximately 10% of Saskatchewan fields (2.4 million ha). In the Aspen Parkland and Boreal Transition ecoregions, this increased to 17%. The objective of this study was to determine if agronomic practices promoted or delayed resistance and to assess producer awareness of herbicide resistance. Weed resistance and management questionnaire data from the 1996 resistance survey and management questionnaire data from the 1995 Saskatchewan weed survey were submitted to multiway frequency analysis. The frequency of occurrence of herbicide-resistant wild oat was related directly to ACCase inhibitor use. Resistance to cyclohexanedione (CHD) herbicides was not related to CHD use but to frequency of ACCase inhibitor use (i.e., CHD + aryloxyphenoxypropanoate [AOPP]), suggesting that the pressure imposed by AOPPs contributed to the selection of CHD resistance in wild oat. ACCase inhibitor use was more extensive in the Aspen Parkland and Boreal Transition ecoregions than in the Mixed and Moist Mixed Grassland ecoregions. Crop rotations were not conducive to rotation of herbicides with different sites of action. Frequency of ACCase inhibitor use increased with frequency of annual crops, in spite of the inclusion of cereal and dicot crops in the rotation. Producers utilizing conservation tillage practices in the Grassland ecoregions used proportionally more ACCase inhibitors than those using conventional tillage practices. This increase in ACCase use in conservation tillage systems did not result in an increased incidence of wild oat populations resistant to ACCase inhibitors. Producers reporting troublesome wild oat populations tended to have proportionally more ACCase-resistant wild oat. Producers who reported practicing weed sanitation were less likely to have resistant wild oat than those who were less careful. Increased awareness and implementation of management practices that will reduce the dependency on ACCase herbicides are required to better enable producers to prevent, delay, or manage herbicide-resistant wild oat populations.

Type
Research Article
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Anderson, D. D., Roeth, F. W., and Martin, A. R. 1996. Occurrence and control of triazine-resistant common waterhemp (Amaranthus rudis) in field corn (Zea mays). Weed Technol. 10: 570575.Google Scholar
Anonymous. 1999. Guide to Crop Protection 1999: Weeds, Plant Diseases, Insects. Regina, SK: Saskatchewan Agriculture and Food; Winnipeg, MB: Manitoba Agriculture Bi-Provincial Publication. 301 p.Google Scholar
Beckie, H. J., Légère, A., Thomas, A. G., Stevenson, F. C., Leeson, J. Y., Juras, L. T., and Devine, M. D. 1998. Saskatchewan Weed Survey: Herbicide-Resistant Wild Oat and Green Foxtail 1996. Saskatoon, SK: Agriculture and Agri-Food Canada Weed Survey Series Publ. 98-3. 77 p.Google Scholar
Beckie, H. J., Thomas, A. G., Légère, A., Kelner, D. J., Van Acker, R. C., and Meers, S. 1999. Nature, occurrence, and cost of herbicide-resistant wild oat (Avena fatua) in small-grain production areas. Weed Technol. 13: 612625.Google Scholar
Boerboom, C. M. 1999. Nonchemical options for delaying weed resistance to herbicides in Midwest cropping systems. Weed Technol. 13: 636642.Google Scholar
Bourgeois, L. and Morrison, I. N. 1997a. Mapping risk areas for resistance to ACCase inhibitor herbicides in Manitoba. Can. J. Plant Sci. 77: 173179.CrossRefGoogle Scholar
Bourgeois, L. and Morrison, I. N. 1997b. A survey of ACCase inhibitor resistant wild oat in a high risk township in Manitoba. Can. J. Plant Sci. 77: 703708.Google Scholar
Bourgeois, L., Kenkel, N. C., and Morrison, I. N. 1997a. Characterization of cross-resistance patterns in acetyl-CoA carboxylase inhibitor resistant wild oat (Avena fatua). Weed Sci. 45: 750755.Google Scholar
Bourgeois, L., Morrison, I. N., and Kelner, D. J. 1997b. Field and grower survey of ACCase resistant wild oat in Manitoba. Can. J. Plant Sci. 77: 709715.Google Scholar
Christoffers, M. J. 1999. Genetic aspects of herbicide-resistant weed management. Weed Technol. 13: 647652.Google Scholar
Conn, J. S. and Deck, R. E. 1995. Seed viability and dormancy of 17 weed species after 9.7 years of burial in Alaska. Weed Sci. 43: 583585.Google Scholar
Devine, M. D. 1997. Mechanisms of resistance to acetyl-coenzyme A carboxylase inhibitors: a review. Pestic. Sci. 51: 259264.3.0.CO;2-S>CrossRefGoogle Scholar
Ecological Stratification Working Group. 1995. A National Ecological Framework for Canada. Ottawa, ON/Hull, QC: Agriculture and Agri-Food Canada, Research Branch, Centre for Land and Biological Resources Research and Environment Canada, State of the Environment Directorate, Ecozone Analysis Branch. 125 p.Google Scholar
Gill, G. S., Cousens, R. D., and Allan, M. R. 1996. Germination, growth, and development of herbicide resistant and susceptible populations of rigid ryegrass (Lolium rigidum). Weed Sci. 44: 252256.Google Scholar
Gressel, J. and Segel, L. A. 1990. Modelling the effectiveness of herbicide rotations and mixtures as strategies to delay or preclude resistance. Weed Technol. 4: 186198.Google Scholar
Heap, I. M., Murray, B. G., Loeppky, H. A., and Morrison, I. N. 1993. Resistance to aryloxyphenoxypropionate and cyclohexanedione herbicides in wild oat (Avena fatua). Weed Sci. 41: 232238.Google Scholar
Maxwell, B. D., Roush, M. L., and Radosevitch, S. R. 1990. Predicting the evolution and dynamics of herbicide resistance of weed populations. Weed Technol. 4: 213.Google Scholar
Morrison, I. N. and Devine, M. D. 1994. Herbicide resistance in the Canadian prairie provinces: five years after the fact. Phytoprotection. 75 (Suppl.): 516.Google Scholar
Morrison, I. N. and Friesen, L. F. 1996. Herbicide resistant weeds: mutation, selection, misconception. Proceedings of the Second International Weed Control Congress, Copenhagen, DK, 25-28 June 1996. Flakkebjerg, DK: Department of Weed Control and Pesticide Ecology. pp. 377385.Google Scholar
Murray, B. G., Morrison, I. N., and Beûlé-Babel, A. L. 1995. Inheritance of acetyl-CoA carboxylase inhibitor-resistance in wild oat (Avena fatua). Weed Sci. 43: 233238.Google Scholar
Murray, B. G., Friesen, L. F., Beaulieu, K. J., and Morrison, I. N. 1996. A seed bioassay to identify acetyl-CoA carboxylase inhibitor resistant wild oat (Avena fatua) populations. Weed Technol. 10: 8589.Google Scholar
Nalewaja, J. D. 1999. Cultural practices for weed resistance management. Weed Technol. 13: 643646.Google Scholar
O'Donovan, J. T., Newman, J. C., Blackshaw, R. E., Harker, K. N., Derksen, D. A., and Thomas, A. G. 1999. Growth, competitiveness, and seed germination of triallate/difenzoquat-susceptible and -resistant wild oat populations. Can. J. Plant Sci. 79: 303312.Google Scholar
[SAS] Statistical Analysis Systems. 1990. SAS User's Guide. Cary, NC: Statistical Analysis Systems Institute. 1686 p.Google Scholar
Sharma, M. P. and Vanden Born, W. H. 1978. The biology of Canadian weeds. 27. Avena fatua L. Can. J. Plant Sci. 58: 141157.Google Scholar
Stephenson, G. R., Dykstra, M. D., McLaren, R. D., and Hamill, A. S. 1990. Agronomic practices influencing triazine-resistant weed distribution in Ontario. Weed Technol. 4: 199207.Google Scholar
Thill, D. C., O'Donovan, J. T., and Mallory-Smith, C. A. 1994. Integrated weed management strategies for delaying herbicide resistance in wild oats. Phytoprotection. 75 (Suppl.): 6170.Google Scholar
Thomas, A. G., Wise, R. F., Frick, B. L., and Juras, L. T. 1996. Saskatchewan weed survey of cereal, oilseed and pulse crops in 1995. Saskatoon, SK: Agriculture and Agri-Food Canada Weed Survey Series Publ. 96-1. 419 p.Google Scholar
Thomas, A. G., Leeson, J. Y., Beckie, H. J., and Légère, A. 1999. Identification of farm management systems at risk for ACCase inhibitor-resistant wild oat (Avena fatua L.). Weed Sci. Soc. Am. Abstr. 39:33.Google Scholar