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Time-of-day effect on weed control efficacy with tolpyralate plus atrazine

Published online by Cambridge University Press:  18 August 2020

Nicole M. Langdon ,
Nader Soltani Open the ORCID record for Nader Soltani [Opens in a new window] ,
Alan J. Raedar ,
David C. Hooker ,
Darren E. Robinson  and
Peter H. Sikkema
Nicole M. Langdon
Affiliation:
Graduate Student, Department of Plant Agriculture, University of Guelph, Ridgetown, ON, Canada
Nader Soltani*
Affiliation:
Adjunct Professor, Department of Plant Agriculture, University of Guelph, Ridgetown, ON, Canada
Alan J. Raedar
Affiliation:
Herbicide Field Development and Technical Service Representative, ISK Biosciences Inc., Concord, OH, USA
David C. Hooker
Affiliation:
Associate Professor, Department of Plant Agriculture, University of Guelph, Ridgetown, ON, Canada
Darren E. Robinson
Affiliation:
Associate Professor, Department of Plant Agriculture, University of Guelph, Ridgetown, ON, Canada
Peter H. Sikkema
Affiliation:
Professor, Department of Plant Agriculture, University of Guelph, Ridgetown, ON, Canada
*
Author for correspondence: Nader Soltani, Department of Plant Agriculture, University of Guelph Ridgetown Campus, 120 Main Street East, Ridgetown, ON, CanadaN0P 2C0. Email: soltanin@uoguelph.ca
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Abstract

Tolpyralate is a new 4-hydroxyphenyl-pyruvate dioxygenase (HPPD)–inhibiting herbicide for weed control in corn. Previous research has reported efficacy of tolpyralate + atrazine on several annual grass and broadleaf weed species; however, no studies have evaluated weed control of tolpyralate + atrazine depending on time-of-day (TOD) of application. Six field experiments were conducted over a 2-yr period (2018, 2019) near Ridgetown, ON, to determine if there is an effect of TOD of application on tolpyralate + atrazine efficacy on common annual grass and broadleaf weeds. An application was made at 3-h intervals beginning at 06:00 h with the last application at 24:00 h. There was a slight TOD effect on velvetleaf, pigweed species, and common ragweed control with tolpyralate + atrazine; however, the magnitude of change throughout the day was ≤3% at 2, 4, or 8 wk after application (WAA). There was no effect of TOD of tolpyralate + atrazine on the control of lambsquarters, barnyardgrass, and green foxtail. All weed species were controlled ≥88% at 8 WAA. There was no effect of TOD of tolpyralate + atrazine application on corn yield. Results of this study show no evidence of a TOD effect on weed control efficacy with tolpyralate + atrazine.

Keywords

AtrazinetolpyralatebarnyardgrassEchinochloa crus-galli (L.) P. Beauv.common ragweedAmbrosia artemisiifolia L.green foxtailSetaria viridis (L.) P. Beauvhemp sesbaniaSesbania herbacea (Mill.) McVaughlambsquartersChenopodium album L.redroot pigweedAmaranthus retroflexus L.sicklepodSenna obtusifolia (L.) H.S. Irwin & BarnebyvelvetleafAbutilon theophrasti Medik.cornZea mays L.Crop injurydensitysensitivityyield
Type
Research Article
Information
Weed Technology , Volume 35 , Issue 1 , February 2021 , pp. 149 - 154
Copyright
© The Author(s), 2020. Published by Cambridge University Press on behalf of the Weed Science Society of America

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Footnotes

Associate Editor: Aaron Hager, University of Illinois

References

Andersen, RN, Koukkari, WL (1978) Response of velvetleaf (Abutilon theoprasti) to bentazon as affected by leaf orientation. Weed Sci 26:393–395 CrossRefGoogle Scholar
Anderson, DM, Swanton, CJ, Hall, JC, Mersey, BG (1993) The influence of temperature and relative humidity on the efficacy of glufosinate-ammonium. Weed Res 2:139–147 CrossRefGoogle Scholar
Anonymous (2019) SHIELDEX® 400SC Herbicide Label. Concord, OH: ISK Biosciences Corp.Google Scholar
Budd, CM, Soltani, N, Robinson, DE, Hooker, DC, Miller, RT, Sikkema, PH (2017) Efficacy of saflufenacil for control of glyphosate-resistant horseweed (Conyza canadensis) as affected by height, density, and time of day. Weed Sci 65:275–284 CrossRefGoogle Scholar
Coetzer, E, Al-Khatib, K, Loughin, TM (2001) Glufosinate efficacy, absorption, and translocation in amaranth as affected by relative humidity and temperature. Weed Sci 49:8–13 CrossRefGoogle Scholar
Doran, DL, Andersen, RN (1976) Effectiveness of bentazon applied at various times of the day. Weed Sci 24:567–570 10.1017/S0043174500062950CrossRefGoogle Scholar
Fausey, JC, Renner, KA (2001) Environmental effects on CGA-248757 and flumiclorac efficacy/soybean tolerance. Weed Sci 49:668–674 CrossRefGoogle Scholar
Friesen, GH, Wall, DA (1991) Effect of application factors on efficacy of fluazifop-P-butyl in flax. Weed Technol 5:504–508 CrossRefGoogle Scholar
Hess, DF, Falk, RH (1990) Herbicide deposition on leaf surfaces. Weed Sci 38:280–288 10.1017/S004317450005654XCrossRefGoogle Scholar
Johnson, B, Young, B (2002) Influence of temperature and relative humidity on the foliar activity of mesotrione. Weed Sci 50:157–161 CrossRefGoogle Scholar
Kraatz, GW, Andersen, RN (1980) Leaf movements in sicklepod (Cassia obtusifolia) in relation to herbicide response. Weed Sci 28:551–556 CrossRefGoogle Scholar
Lee, SD, Oliver, LR (1982) Efficacy of acifluorfen on broadleaf weeds. Times and methods for application. Weed Sci 30:520–526 10.1017/S0043174500041096CrossRefGoogle Scholar
Martinson, KB, Durgan, BR, Gunsolus, JL, Sothern, RB (2005) Time of day of application effect on glyphosate and glufosinate efficacy. Crop Management Res 4:1–7 CrossRefGoogle Scholar
Martinson, KB, Koukkari, WL, Durgan, BR, Gunsolus, JL (2002) Circadian response of annual weeds to glyphosate and glufosinate. Chronobiol Int 19:405–422 10.1081/CBI-120002877CrossRefGoogle ScholarPubMed
Metzger, BA, Soltani, N, Raeder, AJ, Hooker, DC, Robinson, DE, Sikkema, PH (2018a) Tolpyralate efficacy: Part 1. Biologically effective dose of tolpyralate for control of annual grass and broadleaf weeds in corn. Weed Technol 32:698–706 CrossRefGoogle Scholar
Metzger, BA, Soltani, N, Raeder, AJ, Hooker, DC, Robinson, DE, Sikkema, PH (2018b) Tolpyralate efficacy: Part 2. Comparison of three group 27 herbicides applied POST for annual grass and broadleaf weed control in corn. Weed Technol 32:707–713 10.1017/wet.2018.81CrossRefGoogle Scholar
Miller, RP, Martinson, KB, Sothern, RB, Durgan, BR, Gunsolus, JL (2003) Circadian response of annual weeds in a natural setting to high and low application rates of four herbicides with different modes of action. Chronobiol Int 20:299–324 CrossRefGoogle Scholar
Mohr, K, Sellers, BA, Smeda, RJ (2007) Application time of day influences glyphosate efficacy. Weed Technol 21:7–13 CrossRefGoogle Scholar
Norsworthy, JK, Oliver, LR, Purcell, LC (1999) Diurnal leaf movement effects on spray interception and glyphosate efficacy. Weed Technol 13:466–470 CrossRefGoogle Scholar
Pallas, JE (1960) Effects of temperature and humidity on foliar absorption and translocation of 2,4-dichlorophenoxyacetic acid and benzoic acid. Plant Physiol 35:575–580 CrossRefGoogle ScholarPubMed
Prasad, R, Foy, CL, Crafts, AS (1967) Effects of relative humidity on absorption and translocation of foliarly applied dalapon. Weeds 2:149–156 CrossRefGoogle Scholar
Sellers, BA, Smeda, RJ, Johnson, WG (2003) Diurnal fluctuations and leaf angle reduce glufosinate efficacy. Weed Technol 17:302–306 CrossRefGoogle Scholar
Stewart, CL, Nurse, RE, Sikkema, PH (2009) Time of day impacts postemergence weed control in corn. Weed Technol 23:346–355 CrossRefGoogle Scholar
Stopps, GJ, Nurse, RE, Sikkema, PH (2013) The effect of time of day on the activity of postemergence soybean herbicides. Weed Technol 27:690–695 CrossRefGoogle Scholar
Waltz, AL, Martin, AR, Roeth, FW, Lindquist, JL (2004) Glyphosate efficacy on velvetleaf varies with application time of day. Weed Technol 18:931–939 CrossRefGoogle Scholar