AJPS  Vol.5 No.26 , December 2014
Control of Glyphosate and Acetolactate Synthase Resistant Common Ragweed (Ambrosia artemisiifolia L.) in Soybean (Glycine max L.) with Preplant Herbicides
Abstract: A population of common ragweed in Ontario was confirmed to be resistant to glyphosate in 2011. Group 2 [acetolactate synthase (ALS) inhibitors] resistant common ragweed was first confirmed in Ontario in 2000. Previously, glyphosate provided excellent control of common ragweed in glyphosate resistant soybean but with the confirmation of glyphosate resistant (GR) common ragweed, alternative herbicides need to be evaluated. Eight field trials with preplant herbicides were completed over two years (2013 and 2014) in fields with confirmed GR common ragweed. Tank-mixes of glyphosate and linuron or metribuzin provided 88% - 99% and 86% - 98% control 4 weeks after application (WAA) and 80% - 92% and 80% - 95% control 8 WAA, respectively. However, these herbicides also had among the highest environmental impact of the herbicides tested. Based on the results of these studies, GR common ragweed can be controlled with residual herbicides when applied preemergence in soybean. Currently, there are no post emergence herbicides that provide adequate control of GR common ragweed, therefore, preemergence herbicides with residual are essential for full season control.
Cite this paper: Wely, A. , Soltani, N. , Robinson, D. , Hooker, D. , Lawton, M. and Sikkema, P. (2014) Control of Glyphosate and Acetolactate Synthase Resistant Common Ragweed (Ambrosia artemisiifolia L.) in Soybean (Glycine max L.) with Preplant Herbicides. American Journal of Plant Sciences, 5, 3934-3942. doi: 10.4236/ajps.2014.526412.

[1]   Ontario Ministry of Agriculture, Food, and Rural Affairs (2014) Ontario Weeds: Giant Ragweed.

[2]   Frick, B. and Thomas, A.G. (1992) Weed Surveys in Different Tillage Systems in Southwestern Ontario Field Crops. Canadian Journal of Plant Science, 72, 1337-1347.

[3]   Coble, H.D., Williams, F.M. and Ritter, R.L. (1981) Common Ragweed (Ambrosia artemisiifolia) Interference in Soybeans (Glycine max). Weed Science, 29, 339-342.

[4]   Alex, J.F. and Switzer, C.M. (1975) Ontario Weeds. Publication 505. Ministry of Agriculture, Food and Rural Affairs, Ontario, Canada. Queen’s Printer for Ontario, Toronto, 200 p.

[5]   Cowbrough, M.J. (2006) Noxious Weed Profile—Ragweed spp.

[6]   Pollard, J.M. (2007) Identification and Characterization of Glyphosate-Resistant Common Ragweed (Ambrosia artemisiifolia L.). M.Sc. Dissertation, University of Missouri, Columbia.

[7]   Heap, I. (2014) The International Survey of Herbicide Resistant Weeds.

[8]   Kovach, J., Petzoldt, J., Degnil, J. and Tette, J. (2004) A Method to Measure the Environmental Impact of Pesticides. New York’s Food and Life Sciences Bulletin, 139, 139-146.

[9]   Bues, R., Dadomo, M., Lyannaz, J.P., Di Lucca, G., Macua Gonzalez, J.I., Prieto Losada, H. and Dumas, Y. (2003) Evaluation of the Environmental Impact of the Pesticides Applied in Processing Tomato Cropping. Acta Horticulturae, 61, 255-258.

[10]   Fernandez-Cornejo, J. (1998) Environmental and Economic Consequences Adoption: IPM in Viticulture. Agricultural Economics, 18, 145-155.

[11]   Kovach, J., Petzoldt, J., Degnil, J. and Tette, J. (2012) Table 2. List of Pesticides.

[12]   Ziegler, C.R., Donahue, D.W., Drummond, F.A. and Smith, S.N. (2002) The Ecological Economics of Insecticide Use Associated with the Maine Potato Industry Based on a Producer Survey. American Journal of Alternative Agriculture, 17, 159-166.

[13]   Byker, H.P., Soltani, N., Robinson, D., Tardif, F., Lawton, M. and Sikkema, P.H. (2013) Occurrence of Glyphosate and Cloransulam Resistant Canada Fleabane (Conyza canadensis L. Cronq.) in Ontario. Canadian Journal of Plant Science, 93, 851-855.

[14]   Vink, J.P., et al. (2012) Glyphosate-Resistant Giant Ragweed (Ambrosia trifida L.) Control with Preplant Herbicides in Soybean [Glycine max (L.) Merr.]. Canadian Journal of Plant Science, 92, 913-922.