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Growth and Seed Production of Horseweed (Conyza canadensis) Populations Resistant to Glyphosate, ALS-Inhibiting, and Multiple (Glyphosate + ALS-Inhibiting) Herbicides

  • Vince M. Davis (a1), Greg R. Kruger (a1), Jeff M. Stachler (a2), Mark M. Loux (a2) and William G. Johnson (a1)...
Abstract

Horseweed populations with mixtures of biotypes resistant to glyphosate and acetolactate synthase (ALS)–inhibiting herbicides as well as biotypes with multiple resistance to glyphosate + ALS-inhibiting herbicides have been documented in Indiana and Ohio. These biotypes are particularly problematic because ALS-inhibiting herbicides are commonly tank mixed with glyphosate to improve postemergence horseweed control in soybean. The objective of this research was to characterize the growth and seed production of horseweed populations with resistance to glyphosate or ALS-inhibiting herbicides, and multiple resistance to glyphosate + ALS-inhibiting herbicides. A four-herbicide by four-horseweed population factorial field experiment was conducted in the southeastern region of Indiana in 2007 and repeated in 2008. Four horseweed populations were collected from Indiana or Ohio and confirmed resistant to glyphosate, ALS inhibitors, both, or neither in greenhouse experiments. The four herbicide treatments were untreated, 0.84 kg ae ha−1 glyphosate, 35 g ai ha−1 cloransulam, and 0.84 kg ae ha−1 glyphosate + 35 g ai ha−1 cloransulam. Untreated plants from horseweed populations that were resistant to glyphosate, ALS-inhibiting, or multiple glyphosate + ALS-inhibiting herbicides produced similar amounts of biomass and seed compared to populations that were susceptible to those herbicides or combination of herbicides. Furthermore, aboveground shoot mass and seed production did not differ between treated and untreated plants.

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Corresponding author's E-mail: wgj@purdue.edu
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H. J. Beckie , I. M. Heap , R. J. Smeda , and L. M. Hall 2000. Screening for herbicide resistance in weeds. Weed Technol. 14:428445.

V. M. Davis and W. G. Johnson 2008. Glyphosate-resistant horseweed (Conyza canadensis) emergence, survival, and fecundity in no-till soybean. Weed Sci. 56:231236.

B. Johnson , J. Barnes , K. Gibson , and S. Weller 2004. Late-season weed escapes in Indiana soybean fields. Crop Manag. DOI: 10.1094/CM-2004-0923-01-BR. http://www.plantmanagementnetwork.org. Accessed: November 2008.

S. Z. Knezevic and K. G. Cassman 2003. Use of herbicide-tolerant crops as a component of an integrated weed management program. Crop Manag. DOI: 10.1094/CM-2003-0317-01-MG.

P. Neve 2007. Challenges for herbicide resistance evolution and management: 50 years after Harper. Weed Res. 47:365369.

M. D. K. Owen and I. A. Zelaya 2005. Herbicide-resistant crops and weed resistance to herbicides. Pest Manag. Sci. 61:301311.

S. B. Powles 2008. Evolved glyphosate-resistant weeds around the world: lessons to be learnt. Pest Manag. Sci. 64:360365.

P. J. Radford 1967. Growth analysis formulae—their use and abuse. Crop Sci. 7:171175.

D. L. Regehr and F. A. Bazzaz 1979. The population dynamics of Erigeron canadensis, a successional winter annual. J. Ecol. 67:923933.

E. J. Shields , J. T. Dauer , M. J. VanGessel , and G. Neumann 2006. Horseweed (Conyza canadensis) seed collected in the planetary boundary layer. Weed Sci. 54:10631067.

C. Thébaud and R. J. Abbott 1995. Characterization of invasive Conyza species (Asteraceae) in Europe: quantitative trait and isozyme analysis. Am. J. Bot. 82:360368.

P. J. Tranel and T. R. Wright 2002. Resistance of weeds to ALS-inhibiting herbicides: what have we learned? Weed Sci. 50:700712.

M. J. VanGessel 2001. Glyphosate-resistant horseweed in Delaware. Weed Sci. 49:703705.

M. J. VanGessel , A. O. Ayeni , and B. A. Majek 2001. Glyphosate in full season no-till glyphosate-resistant soybean: role of preplant applications and residual herbicides. Weed Technol. 15:714724.

S. E. Weaver 2001. The biology of Canadian weeds. 115. Conyza canadensis . Can. J. Plant Sci. 81:867875.

A. M. Westhoven , G. R. Kruger , C. K. Gerber , J. M. Stachler , M. M. Loux , and W. G. Johnson 2008. Characterization of selected common lambsquarters (Chenopodium album) biotypes with tolerance to glyphosate. Weed Sci. 56:685691.

I. A. Zelaya , M. D. K. Owen , and M. J. VanGessel 2004. Inheritance of evolved glyphosate resistance in Conyza canadensis (L.) Cronq. Theor. Appl. Genet. 110:5870.

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Weed Science
  • ISSN: 0043-1745
  • EISSN: 1550-2759
  • URL: /core/journals/weed-science
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