Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-28T14:54:25.512Z Has data issue: false hasContentIssue false
  • English
  • Français

Weed Control in Soybean with Imazethapyr Applied Alone or in Tank Mix with Saflufenacil/Dimethenamid-P

Published online by Cambridge University Press:  20 January 2017

Kimberly D. Walsh ,
Nader Soltani ,
Christy Shropshire  and
Peter H. Sikkema
Kimberly D. Walsh
Affiliation:
Department of Plant Agriculture, University of Guelph Ridgetown Campus, 120 Main St. East, Ridgetown, Ontario, Canada N0P 2C0
Nader Soltani*
Affiliation:
Department of Plant Agriculture, University of Guelph Ridgetown Campus, 120 Main St. East, Ridgetown, Ontario, Canada N0P 2C0
Christy Shropshire
Affiliation:
Department of Plant Agriculture, University of Guelph Ridgetown Campus, 120 Main St. East, Ridgetown, Ontario, Canada N0P 2C0
Peter H. Sikkema
Affiliation:
Department of Plant Agriculture, University of Guelph Ridgetown Campus, 120 Main St. East, Ridgetown, Ontario, Canada N0P 2C0
*
Corresponding author's E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

Saflufenacil/dimethenamid-P is a relatively new prepackaged herbicide mixture that has the potential to provide enhanced weed control in soybean when tank-mixed with reduced doses of imazethapyr. Six field experiments were conducted over a 3-yr period (2011, 2012, and 2013) near Ridgetown and Exeter, Ontario, Canada, to determine the dose of imazethapyr, applied PRE, that must be added to saflufenacil/dimethenamid-P (245 g ai ha−1) to provide effective weed control in soybean. The predicted dose of imazethapyr PRE for 80% control of common lambsquarters, common ragweed, green foxtail, and velvetleaf 8 wk after soybean emergence (WAE) was 66, 180, 137, and 48 g ai ha−1, respectively. In contrast, when tank-mixed with saflufenacil/dimethenamid-P (245 g ha−1), the dose of imazethapyr PRE needed for 80% control of common lambsquarters, common ragweed, green foxtail, and velvetleaf was reduced to 11, 80, 48, and 18 g ha−1, respectively. The control of common lambsquarters, common ragweed, green foxtail, and velvetleaf was improved by 21, 23, 34, and 27%, respectively when saflufenacil/dimethenamid-P (245 g ha−1) was added to imazethapyr PRE. Imazethapyr at 104 g ha−1 resulted in soybean yield that was 95% of the weed-free control; however, when tank-mixed with saflufenacil/dimethenamid-P (245 g ha−1) only 54 g ha−1 of imazethapyr was required for the same yield level. Based on this study, PRE application of saflufenacil/dimethenamid-P with reduced doses of imazethapyr has the potential to improve soybean yield and provide acceptable weed control (≥ 80%); however, the extent that imazethapyr dose can be reduced is dependent upon weed community composition.

Keywords

Saflufenacil/dimethenamid-Pimazethapyrcommon lambsquarters, Chenopodium album L. CHEALcommon ragweed, Ambrosia artemisiifolia L. AMBELgreen foxtail, Setaria viridis (L.) Beauv. SETVIvelvetleaf, Abutilon theophrasti Medik. ABUTHsoybean, Glycine max (L.) Merr.Dose responsepreemergence herbicidesresidual herbicidestank mixing
Type
Weed Management
Information
Weed Science , Volume 63 , Issue 1 , March 2015 , pp. 329 - 335
Copyright
Copyright © 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

Böger, P (2003) Mode of action for chloroacetamides and functionally related compounds. J Pestic Sci. 28:324–329 Google Scholar
Bowe, S, Liebl, R, Walter, H, Holt, T, Sievernich, B, Patzoldt, W (2008) Saflufenacil: a new herbicide for preplant burndown and preemergence dicot weed control. Proceedings North Central Weed Science Society 63:12 [Abstract] Google Scholar
Burke, IC, Askew, SD, Wilcut, JW (2002) Flumioxazin systems for weed management in North Carolina peanut (Arachis hypogaea). Weed Technol 16:743–748 Google Scholar
Camargo, ER, Senseman, SA, McCauley, GN, Bowe, S, Harden, J, Guice, JB (2012) Interaction between saflufenacil and imazethapyr in red rice (Oryza ssp.) and hemp sesbania (Sesbania exaltata) as affected by light intensity. Pest Manag Sci. 68:1010–1018 Google Scholar
Cantwell, JR, Liebl, RA, Slife, FW (1989) Imazethapyr for weed control in soybean (Glycine max). Weed Technol 3:596–601 Google Scholar
Datta, A, Rapp, RE, Scott, JE, Charvat, LD, Zawierucha, J, Knezevic, SZ (2013) Spring-applied saflufenacil and imazapic provided longer lasting Euphorbia esula L. control than fall applications. Crop Protect 47:30–34 Google Scholar
Geier, PW, Stahlman, PW, Charvat, LD (2009) Dose responses of five broadleaf weeds to saflufenacil. Weed Technol 23:313–316 Google Scholar
Grossmann, K, Hutzler, J, Caspar, G, Kwiatkowski, J, Brommer, CL (2011) Saflufenacil (Kixor™): biokinetic properties and mechanism of selectivity of a new protoporphyrinogen IX oxidase inhibiting herbicide. Weed Sci. 59:290–298 Google Scholar
Jhala, AJ, Ramirez, AH, Singh, M (2012) Rimsulfuron tank mixed with flumioxazin, pendimethalin, or oryzalin for control of broadleaf weeds in citrus. HortTechnology 22:638–643 Google Scholar
Kulasekera, K (2014) Estimated Area, Yield, Production and Farm Value of Specified Field Crops, Ontario, 2011–2013. http://www.omafra.gov.on.ca/english/stats/crops/estimate_new.htm Accessed April 26, 2014Google Scholar
LaRossa, RA, Van Dyk, TK, Smulski, DR (1987) Toxic accumulation of alpha-ketobutyrate caused by inhibition of the branched-chain amino acid biosynthetic enzyme acetolactate synthase in Salmonella typhimurium . J Bacteriol 169:1372–1378 Google Scholar
Mahoney, KJ, Tardif, FJ, Robinson, DE, Nurse, RE, Sikkema, PH (2014) Tolerance of soybean (Glycine max L.) to protoporphyrinogen oxidase inhibitors and very long chain fatty acid synthesis inhibitors applied preemergence. Am J Plant Sci. 5:1117–1124 Google Scholar
Miller, RT, Soltani, N, Robinson, DE, Kraus, TE, Sikkema, PH (2012a) Biologically effective rate of saflufenacil/dimethenamid-p in soybean (Glycine max). Can J Plant Sci. 92:517–531 Google Scholar
Miller, RT, Soltani, N, Robinson, DE, Kraus, TE, Sikkema, PH (2012b) Soybean (Glycine max) cultivar tolerance to saflufenacil. Can J Plant Sci. 92:1319–1328 Google Scholar
Moran, M, Sikkema, PH, Swanton, CJ (2011) Efficacy of saflufenacil plus dimethenamid-P for weed control in corn. Weed Technol 25:330–334 Google Scholar
Mulugeta, D, Boerboom, CM (2000) Critical time of weed removal in glyphosate-resistant Glycine max . Weed Sci. 48:35–42 Google Scholar
[OMAFRA] Ontario Ministry of Agriculture, Food and Rural Affairs (2009) Agronomy Guide for Field Crops. Publication 811. Toronto, Ontario, Canada Queen's Printer for Ontario. 306 pGoogle Scholar
[OMAFRA] Ontario Ministry of Agriculture, Food and Rural Affairs (2013) Guide to Weed Control. Publication 75. Toronto, Ontario, Canada Queen's Printer for Ontario. 426 pGoogle Scholar
Seefeldt, SS, Jensen, JE, Fuerst, EP (1995) Log-logistic analysis of herbicide dose-response relationships. Weed Technol 9:218–227 Google Scholar
Soltani, N, Van Eerd, LL, Vyn, R, Shropshire, C, Sikkema, PH (2007a) Weed management in dry beans (Phaseolus vulgaris) with dimethenamid plus reduced doses of imazethapyr applied preplant incorporated. Crop Prot 26:739–745 Google Scholar
Soltani, N, Van Eerd, LL, Vyn, RJ, Shropshire, C, Sikkema, PH (2007b) Weed control, environmental impact and profitability of reduced rates of imazethapyr in combination with dimethenamid in dry beans. Can J Plant Sci. 87:671–678 Google Scholar
Swanton, CJ, Shrestha, A, Chandler, K, Deen, W (2009) An economic assessment of weed control strategies in no-till glyphosate-resistant soybean (Glycine max). Weed Technol 14:755–765 Google Scholar
Van Acker, RC, Swanton, CJ, Weise, SF (1993) The critical period of weed control in soybean [Glycine max (L.) Merr.]. Weed Sci. 41:194–200 Google Scholar
Vencill, WK, Nichols, RL, Webster, TM, Soteres, JK, Mallory-Smith, C, Burgos, NR, Johnson, WG, McClelland, MR (2012) Herbicide resistance: toward an understanding of resistance development and the impact of herbicide-resistant crops. Weed Sci. 60:2–30 Google Scholar
Wax, LM, Pendleton, JW (1968) Effect of row spacing on weed control in soybeans. Weed Sci. 16:462–465 Google Scholar