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Potential Benefit and Risk of Fluridone as a Fall Germination Stimulant in Western Canada

Published online by Cambridge University Press:  27 September 2017

Breanne D. Tidemann*
Affiliation:
Graduate Student and Professor, Department of Agriculture, Food and Nutritional Science, University of Alberta, 410 Agriculture and Forestry Center, Edmonton, AB T6G 2P5, Canada
Linda M. Hall
Affiliation:
Graduate Student and Professor, Department of Agriculture, Food and Nutritional Science, University of Alberta, 410 Agriculture and Forestry Center, Edmonton, AB T6G 2P5, Canada
K. Neil Harker
Affiliation:
Research Scientist, Agriculture and Agri-Food Canada (AAFC), 6000 C&E Trail, Lacombe, AB T4L 1W1, Canada
Hugh J. Beckie
Affiliation:
Research Scientist, AAFC, 107 Science Place, Saskatoon, SK S7N 0X2, Canada
*
*Corresponding author’s E-mail: blaturnu@ualberta.ca

Abstract

Herbicide resistance has increased the need for novel weed control strategies. Fluridone has herbicidal as well as potential germination stimulant activity. The objectives of this study were to evaluate fluridone as a fall-applied germination stimulant for weed control and to assess rotational crop tolerance. Fall-applied fluridone was compared with a nontreated control in areas established with false cleavers, volunteer canola, and wild oat at Lacombe, AB, in 2014–2015 and 2015–2016, and at St Albert, AB, in 2015–2016. In the fall, there was a trend for weed densities to be higher in fluridone treatments than in untreated controls across site-years. The stimulatory effect of fluridone on weed germination was not statistically significant in fall assessments, while the weed control effect was significant in 33% of spring assessments. While fluridone reduced weed biomass for some site-years, it also reduced canola crop emergence and biomass at St Albert in 2015–2016, and caused injury symptoms on wheat and field pea. Risk of carryover to subsequent crops outweighed the benefits of using fluridone in the fall to stimulate weed germination in this study.

Type
Notes
Copyright
© Weed Science Society of America, 2017 

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Footnotes

Associate Editor for this paper: Andrew Kniss, University of Wyoming

References

Literature Cited

Anonymous. (2016a) Brake® F16 herbicide. http://www.sepro.com/documents/BrakeF16_label.pdf. Accessed: November 14, 2016Google Scholar
Anonymous. (2016b) Brake® FX herbicide. http://www.sepro.com/documents/BrakeFX_label.pdf. Accessed: November 14, 2016Google Scholar
Banks, PA, Merkle, MG (1979) Field evaluations of the herbicidal effects of fluridone on two soils. Agron J 71:759762 Google Scholar
Bartels, PG, Watson, CW (1978) Inhibition of carotenoid synthesis by fluridone and norflurazon. Weed Sci 26:198203 CrossRefGoogle Scholar
Braswell, LR, Cahoon, CW Jr, York, AC, Jordan, DL, Seagroves, RW (2016) Fluridone and encapsulated acetochlor reduce protoporphyrinogen oxidase inhibitor use in a glufosinate-based palmer amaranth management program for cotton. Weed Technol 30:838847 CrossRefGoogle Scholar
Cahoon, CW, York, AC, Jordan, DL, Seagroves, RW, Everman, WJ, Jennings, KM (2015) Fluridone carryover to rotational crops following application to cotton. J Cotton Sci 19:631640 Google Scholar
Castello, M, Croser, J, Lulsdorf, M, Ramankutty, P, Pradhan, A, Nelson, M, Real, D (2015) Breaking primary dormancy in seeds of the perennial pasture legume tedera (Bituminaria bituminosa CH stirt. vars albomarginata and crassiuscula). Grass Forage Sci 70:365373 CrossRefGoogle Scholar
Davis, AS (2006) When does it make sense to target the weed seed bank? Weed Sci 54:558565 CrossRefGoogle Scholar
Duke, SO (2012) Why have no new herbicide modes of action appeared in recent years? Pest Manag Sci 68:505512 CrossRefGoogle ScholarPubMed
Egley, GH (1986) Stimulation of weed seed germination in soil. Pages 6769 in Reviews of Weed Science. Champaign, IL: Weed Science Society of America Google Scholar
Goggin, DE, Powles, SB (2014) Fluridone: a combination germination stimulant and herbicide for problem fields? Pest Manag Sci 70:14181424 Google Scholar
Goggin, DE, Steadman, KJ, Emery, RJN, Farrow, SC, Benech-Arnold, RL, Powles, SB (2009) ABA inhibits germination but not dormancy release in mature imbibed seeds of Lolium rigidum Gaud. J Exp Bot 60:33873396 CrossRefGoogle Scholar
Heap, I (2016) The International Survey of Herbicide Resistant Weeds. www.weedscience.org. Accessed: December 1, 2016Google Scholar
Hill, ZT, Norsworthy, JK, Barber, LT, Roberts, TL, Gbur, EE (2016) Assessing the potential for fluridone carryover to six crops rotated with cotton. Weed Technol 30:346354 CrossRefGoogle Scholar
Leeson, JY, Thomas, AG, Hall, LM, Brenzil, CA, Andrews, T, Brown, KR, Van Acker, RC (2005) Prairie weed surveys of cereal, oilseed and pulse crops from the 1970s to the 2000s. Saskatoon, SK, Canada: Agriculture and Agri-Food Canada Google Scholar
Schroeder, J, Banks, PA (1986) Persistence of fluridone in five Georgia soils. Weed Sci 34:612616 Google Scholar
Shaner, DL, ed 2014 Herbicide Handbook 10th edn. Lawrence, KS: Weed Science Society of America. 513 pGoogle Scholar
Shea, PJ, Weber, JB (1983) Effect of soil pH on fluridone activity and persistence as determined by chlorophyll measurements. Weed Sci 31:347350 CrossRefGoogle Scholar
Tidemann, BD, Hall, LM, Harker, KN, Alexander, BCS (2016) Identifying critical control points in the wild oat (Avena fatua) life cycle and the potential effects of harvest weed-seed control. Weed Sci 64:463473 CrossRefGoogle Scholar
Tidemann, BD, Hall, LM, Harker, KN, Beckie, HJ, Johnson, EN, Stevenson, FC (2017) Suitability of wild oat (Avena fatua), false cleavers (Galium spurium) and volunteer canola (Brassica napus) for harvest weed seed control in western Canada. Weed Sci. doi: 10.1017/wsc.2017.58Google Scholar
Waldrep, TW, Taylor, HM (1976) 1-methyl-3-phenyl-5-3(trifluoromethyl)phenyl]-4(1H)-pyridinone, a new herbicide. J Agric Food Chem 24:12501251 Google Scholar