Johnson, Eric, M.Sc., P.Ag.

Biologiste des mauvaises herbes


Coordonnées :

C.P. 10
Scott, (Saskatchewan) S0K 4A0
Téléphone : 306-247-2011, poste 23
Télécopieur : 306-247-2022
Courriel : eric.johnson@agr.gc.ca

Domaines d'expertise :

  • expériences en recherche sur les pesticides à usage limité
  • gestion chimique et culturale des mauvaises herbes
  • lutte physique contre les mauvaises herbes

Projets en cours :

  • Fournir des connaissances sur la biologie des mauvaises herbes, la dynamique des populations et l'écologie des communautés comme base pour l'élaboration de stratégies de lutte intégrée ayant une incidence réduite sur l'environnement
  • Élaboration de pratiques de gestion bénéfiques à long terme pour supprimer les mauvaises herbes dans les systèmes culturaux avec le moins d'incidence possible sur l'environnement
  • Élaboration de technologies à risque réduit pour assurer une gestion améliorée des mauvaises herbes dans les agroécosystèmes
  • Pesticides à usage limité

Affiliations :

  • Deuxième vice-president, Société canadienne de malherbologie
  • P.Ag., Saskatchewan Institute of Agrologists

Publications de recherche :

Les liens ci-dessous mènent aux résumés avec accès au texte intégral.

2016

2015

2014

2013

2012

2011

2010

2009

Autres publications relatives à la science :

2015

  • Harker, K.N., O'Donovan, J.T., Blackshaw, R.E., Johnson, E.N., Pageau, D., Shirtliffe, S.J., Gulden, R.H., Rowsell, J., Hall, L.M., et Willenborg, C.J. (2015). « Cultural techniques for integrated wild oat management. », Canadian Weed Science Society Meeting, Edmonton, AB, Canada, November 23-26, 2015, Oral presentation. (Résumé)
  • Harker, K.N., O'Donovan, J.T., Turkington, T.K., Blackshaw, R.E., Lupwayi, N.Z., Smith, E.G., Johnson, E.N., Kutcher, H.R., Willenborg, C.J., Gan, Y.T., Dosdall, L.M., Hall, L.M., Peng, G., Irvine, R.B., et Mohr, R.M. (2015). « Sustainable canola production increases with cropping system diversity. », 14th International Rapeseed Congress, Saskatoon, SK, Canada, July 5-9, 2015. (Affiche)
  • Mierau, A., Willenborg, C.J., Gulden, R.H., May, W.E., Weber, J., et Johnson, E.N. (2015). « Evaluating a two-pass herbicide system for managing glyphosate-resistant canola in glyphosate-resistant soybean crops. », Canadian Weed Science Society Conference, Edmonton, Alberta, Canada, November 25, 2015.
  • O'Donovan, J.T., Grant, C.A., Blackshaw, R.E., Harker, K.N., Johnson, E.N., Gan, Y.T., May, W.E., Turkington, T.K., Lupwayi, N.Z., Khakbazan, M., et Smith, E.G. (2015). « Legumes in rotation affect hybrid canola and malting barley. », 14th International Rapeseed Congress, Saskatoon, SK, Canada, July 5-9, 2015, Keynote Theme D oral presentation.
  • O'Donovan, J.T., Turkington, T.K., Harker, K.N., Oatway, L., Grant, C.A., Beres, B.L., Johnson, E.N., May, W.E., Izydorczyk, M.S., MacLeod, A., Anbessa, Y., et Vera, C.L. (2015). « Malting barley cultivar responses to increasing nitrogen rates in western Canada. », ASA-CSSA-SSSA International Annual Meeting: Synergy in Science. Partnering for Solutions, Minneapolis, MN, USA, November 15-18, 2015. (Affiche)
  • Turkington, T.K., O'Donovan, J.T., Harker, K.N., Xi, K., Blackshaw, R.E., Johnson, E.N., Peng, G., Kutcher, H.R., May, W.E., Lafond, G.P., Mohr, R.M., et Irvine, R.B. (2015). « The impact of fungicide and herbicide timing on foliar disease severity, and barley productivity and quality. », XVIII International Plant Protection Congress (IPPC), Free University Berlin, Henry Ford Building, Berlin, Germany, August 24-27, 2015, ID: P HERBI 7. (Affiche)

2014

  • Beckie, H.J., Gulden, R.H., Shaikh, N., Johnson, E.N., Willenborg, C.J., Brenzil, C.A., Shirriff, S.W., Lozinski, C., et Ford, G. (2014). « Glyphosate-resistant kochia in Saskatchewan and Manitoba. », 68th Annual Meeting of the Canadian Weed Science Society - Société canadienne de malherbologie, Montreal, QC, Canada, November 17-20, 2014. (Résumé)
  • Beckie, H.J., Johnson, E.N., Leeson, J.Y., Shirriff, S.W., et Kapiniak, A. (2014). « Evolution of acetyl-CoA carboxylase (ACC)-inhibitor resistance in wild oat (Avena fatua) in a long-term alternative cropping systems study. », 2014 Weed Science Society of America (WSSA) and the Canadian Weed Science Society (CWSS) Annual Meeting, Vancouver, B.C., Canada, February 3-6, 2014. (Résumé)
  • Blackshaw, R.E., Harker, K.N., O'Donovan, J.T., Johnson, E.N., Gan, Y.T., et Peng, G. (2014). « How frequently can oilseed rape be grown in sustainable cropping systems. », 13th Congress of European Society of Agronomy, Debrecen, Hungary, August 25-29, 2014, Available online at http://www.esa2014.hu/news/post-conference-updates-8.html, p. 331-332. (Affiche)
  • Fernando, W.G.D., Peng, G., Kirkham, C.L., Lange, R., Kutcher, H.R., McLaren, D.L., Johnson, E.N., et Turkington, T.K. (2014). « Blackleg and clubroot of canola - should we be concerned? », Crop Talk, Prince Albert, SK, Canada, March 21, 2014, Presentation.
  • Harker, K.N., O'Donovan, J.T., Turkington, T.K., Baron, V.S., Blackshaw, R.E., Hall, L.M., Johnson, E.N., Willenborg, C.J., Shirtliffe, S.J., Gulden, R.H., Kobler, J.F., et Pageau, D. (2014). « Delaying herbicide resistance with integrated wild oat (Avena fatua) management. », 2014 Weed Science Society of America (WSSA) and the Canadian Weed Science Society (CWSS) Annual Meeting, Vancouver, B.C., Canada, February 3-6, 2014. (Résumé)
  • Johnson, E.N., Leeson, J.Y., Lemke, R.L., Olfert, O.O., et Moulin, A.P. (2014). « Effect of Cropping Diversity and Input System on Weed Populations in an 18-Year Cropping System Study. », 10th European Weed Research WRS Workshop on Physical and Cultural Weed Control, Alnarp, Sweden, March 16-19, 2014. (Résumé)
  • O'Donovan, J.T., Blackshaw, R.E., Grant, C.A., Harker, K.N., Johnson, E.N., Gan, Y.T., Lafond, G.P., May, W.E., et Turkington, T.K. (2014). « Legume crops grown in rotation enhance canola and barley productivity in western Canada. », 13th Congress of European Society of Agronomy, Debrecen, Hungary, August 25-29, 2014, p. 357-358.
  • O'Donovan, J.T., Edney, M.J., MacLeod, A., Turkington, T.K., Grant, C.A., Harker, K.N., Johnson, E.N., Lafond, G.P., May, W.E., Beres, B.L., Kabeta, Y., et Juskiw, P.E. (2014). « Response of new malting barley cultivars to increasing nitrogen rates in western Canada. », 13th Congress of European Society of Agronomy, Debrecen, Hungary, August 25-29, 2014, p. 141-142. (Affiche)
  • O'Donovan, J.T., Grant, C.A., Blackshaw, R.E., Harker, K.N., Johnson, E.N., Gan, Y.T., May, W.E., Lafond, G.P., Turkington, T.K., Lupwayi, N.Z., Khakbazan, M., et Smith, E.G. (2014). « Rotational Effects of Legumes and Non-Legumes on Hybrid Canola, and Malting Barley. », American Society of Agronomy Annual Meeting 2014, Long Beach, CA, USA, November 3-5, 2014.
  • Peng, G., Fernando, W.G.D., Kirkham, C.L., Lange, R., Kutcher, H.R., McLaren, D.L., Johnson, E.N., et Turkington, T.K. (2014). « Emerging disease issues with canola disease production - clubroot and blackleg. », Canola Discovery Forum, Saskatoon, SK, Canada, October 22-23, 2014.
  • Peng, G., Fernando, W.G.D., Kirkham, C.L., Lange, R., Kutcher, H.R., McLaren, D.L., Johnson, E.N., et Turkington, T.K. (2014). « Managing blackleg of canola in western Canada - "new" strategies against an old disease. », 11th Conference of the European Foundation for Plant Pathology, Cracow, Poland, September 8-13, 2014.
  • Séguin-Swartz, G.T., Beckie, H.J., Warwick, S.I., Roslinsky, V., Nettleton, J.A., Johnson, E.N., et Falk, K.C. (2014). « Pollen-mediated gene flow between glyphosate-resistant Brassica napus canola and B. juncea and B. carinata mustard crops under large-scale field conditions in Saskatchewan. », 2014 WSSA/CWSS Annual Meeting, Vancouver, B.C., Canada, February 3-6, 2014. (Résumé)

2013

  • Johnson, E.N. (2013). « Carinata agronomy and production research in Saskatchewan. », Carinata Day Producer Meeting, Swift Current, SK, Canada, March 26, 2013. (Présentation)
  • Johnson, E.N. (2013). « Mustard weed control: Are we making progress? », Saskatchewan Mustard Development Commission Annual Meeting, Saskatoon, SK, Canada, January 9, 2013. (Présentation)
  • Johnson, E.N. (2013). « Weed management. », publié dedans Carinata: A Guide to Best Management Practices., 14 pages.
  • McAllister, T.A., He, M.L., McKinnon, J.J., Nair, J., Johnson, E.N., et Cheng, B.F. (2013). « Canola juncea - new meal in town. », Saskatchewan Beef and Forage Symposium, Saskatoon, SK, Canada, January 24, 2013. (Présentation)
  • O'Donovan, J.T., Grant, C.A., Blackshaw, R.E., Harker, K.N., Turkington, T.K., Johnson, E.N., Lafond, G.P., May, W.E., Gan, Y.T., Edney, M., et Juskiw, P.E. (2013). « Effect of legume crops grown two years prior to barley on malting barley yield and quality. », ASA/CSSA/SSSA International annual meeting: Water, Food, Energy and Innovation for a Sustainable World, Tampa, Florida, USA, November 3-6, 2013.
  • O'Donovan, J.T., Turkington, T.K., Edney, M., Juskiw, P.E., May, W.E., Grant, C.A., Smith, E.G., Harker, K.N., Johnson, E.N., Beres, B.L., Kadeta, Y., et Chapman, B. (2013). « Relative responses of malting barley varieties to increasing nitrogen rates. », 16th Australian Barley Technical Symposium, Melbourne, Australia, September 8-11, 2013, p. 58.
  • O'Donovan, J.T., Turkington, T.K., Edney, M., Smith, E.G., Harker, K.N., Beres, B.L., Clayton, G.W., Brandt, S.A., Johnson, E.N., Lafond, G.P., May, W.E., Grant, C.A., McKenzie, R., Juskiw, P.E., Kadeta, Y., Stonehouse, K., et Chapman, B. (2013). « Varietal and agronomic impacts on malting barley yield and quality. », FarmTech 2013, Westin Hotel, Edmonton, AB, Canada, January 29-31, 2013.
  • Peng, G., Fernando, W.G.D., Kirkham, C.L., Lange, R., Kutcher, H.R., McLaren, D.L., Johnson, E.N., et Turkington, T.K. (2013). « Managing blackleg of canola - potential new tools. », Soils and Crops Workshop 2013, Prairieland Park, Saskatoon, SK, Canada, March 5-6, 2013.
  • Szmigielski, A.M., Schoenau, J.J., et Johnson, E.N. (2013). « Bioactivity and dissipation of pyroxasulfone herbicide in Saskatchewan soils. », 66th Annual Meeting of the Western Society of Weed Science, Catamaran Resort, San Diego, CA, USA, March 11-14, 2013. (Affiche)

2012

  • Beaudoin, N., Sansoulet, J.B., Pattey, E., Grant, C.A., Blackshaw, R.E., Harker, K.N., Johnson, E.N., O'Donovan, J.T., et Gervois, S. (2012). « Adaptation de STICS à la culture de canola au Canada à partir du module colza en vue de simuler les émissions de N2O par ModuloSTICS. », IXe Séminaire du modèle de culture STICS, Sainte-Montaine, France, October 16-19, 2012. (Affiche)
  • Johnson, E.N. (2012). « Efficacy of fall and spring applications of pyroxasulfone. », 9th Canadian Pulse Research Workshop, Niagara Falls Marriott Gateway, Niagara Falls, ON, Canada, November 6-12, 2012, p. 57. (Affiche)
  • Johnson, E.N. (dir.) (2012). « Managing Herbicide-Resistant Weeds in Pulses. », PulsePoint, 12(1), p. 8-9.
  • Johnson, E.N., Beckie, H.J., Hall, L.M., Laturnus, B.D., Willenborg, C.J., Sapsford, K.L., Schoenau, G.J., et Smizigielski, A.M. (2012). « The potential for Group 15 herbicides in managing herbicide resistant weeds in pulses. », 9th Canadian Pulse Research Workshop, Niagara Falls Marriott Gateway, Niagara Falls, ON, Canada, November 6-12, 2012, p. 30.
  • Johnson, E.N., Beckie, H.J., Hall, L.M., Schoenau, J.J., Willenborg, C.J., Sapsford, K.L., et Vandenberg, A. (2012). « Minor Use and New Herbicides. », FarmTech 2012, Edmonton, AB, Canada, January 24-26, 2012. (Présentation)
  • Johnson, E.N., Beckie, H.J., Hall, L.M., Schoenau, J.J., Willenborg, C.J., Sapsford, K.L., et Vandenberg, A. (2012). « Progress in Managing Herbicide Resistant Weeds in Pulse Crops. », Pulse Days 2012, Saskatoon, SK, Canada, January 10, 2012. (Présentation)
  • Johnson, E.N., Beckie, H.J., Hall, L.M., Schoenau, J.J., Willenborg, C.J., Sapsford, K.L., et Vandenberg, A. (2012). « Progress in managing herbicide resistant weeds in pulses. », Pulse Science Cluster Scientific Meeting 2011, Radisson Hotel, Saskatoon, SK, Canada, November 17-18, 2011. (Résumé)
  • Johnson, E.N., Beckie, H.J., Willenborg, C.J., Sapsford, K.L., Vandenberg, A., Schoenau, J.J., Hall, L.M., et Laturnus, B.D. (2012). « Progress in managing herbicide resistance in pulse crops. », Pulse Science Cluster Scientific Meeting 2012, Niagara Falls Marriott Gateway, Niagara Falls, ON, Canada, November 5, 2012. (Présentation)
  • Johnson, E.N., Beckie, H.J., Willenborg, C.J., et Sapsford, K.L. (2012). « Progress in managing herbicide resistant weed in lentil. », 65th Annual Meeting of the Western Society of Weed Science, Peppermill Resort, Reno, NV, USA, March 12-15, 2012. (Résumé)
  • Johnson, E.N., Falk, K.C., et Cote, J. (2012). « Opportunities for Ethiopian Mustard. », Western Canadian Crop Production Show 2012, Saskatoon, SK, Canada, January 9, 2012. (Affiche)
  • Johnson, E.N., Hall, L.M., Laturnus, B.D., Beckie, H.J., Sapsford, K.L., et Willenborg, C.J. (2012). « Pyroxasulfone application timing and efficacy on cleavers (Galium aparine) and wild oats (Avena fatua). », Canadian Weed Science Society 66th Annual Meeting, Fairmont Hotel, Winnipeg, MB, Canada, November 12-15, 2012, p. 18. (Résumé)
  • Johnson, E.N., Sapsford, K.L., Willenborg, C.J., Hall, L.M., Topinka, A.K., Juras, L.T., Degenhardt, R.F., Hamman, W.M., et Nybo, B.X. (2012). « Broadleaf herbicide tolerance in Brassica carinata. », 2012 Western Society of Weed Science Annual Meeting, Reno, NV, USA, March 12-14, 2012. (Affiche)
  • Laturnus, B.D., Hall, L.M., Johnson, E.N., Beckie, H.J., Sapsford, K.L., Willenborg, C.J., et Raatz, L.L. (2012). « Pyroxasulfone and sulfentrazone efficacy on cleavers (Galium aparine) and wild oats (Avena fatua). », Pulse Science Cluster Scientific Meeting 2012, Niagara Falls Marriott Gateway, Niagara Falls, ON, Canada, November 5, 2012. (Présentation)
  • Pajic, V., Holm, F.A., Sapsford, K.L., Johnson, E.N., et Vandenberg, A. (2012). « Developing sulfentrazone and fluthiacet-methyl tolerance in lentil. », 9th Canadian Pulse Research Workshop, Niagara Falls Marriott Gateway, Niagara Falls, ON, Canada, November 6-12, 2012, p. 41. (Affiche)
  • Peng, G., Fernando, W.G.D., Kirkham, C.L., Lange, R., Kutcher, H.R., McLaren, D.L., Johnson, E.N., et Turkington, T.K. (2012). « Mitigating the risk of blackleg disease of canola using fungicide strategies. », Soils and Crops Workshop 2012, Universtiy of Saskatchewan, Saskatoon, SK, Canada, March 13-14, 2012, [CD], 7 pages.
  • Sapsford, K.L., Johnson, E.N., et Vandenberg, A. (2012). « Searching for improved lentil tolerance to ppo inhibitor herbicides. », 2012 Western Society of Weed Science Annual Meeting, Reno, NV, USA, March 12-14, 2012. (Résumé)
  • Sapsford, K.L., Willenborg, C.J., Johnson, E.N., et Beckie, H.J. (2012). « Group 2 (ALS) resistant cleavers (Galium aparine / Galium spurium) control in field peas (Pisum sp.). », 9th Canadian Pulse Research Workshop, Niagara Falls Marriott Gateway, Niagara Falls, ON, Canada, November 6-12, 2012, p. 57. (Affiche)

2011

  • Beckie, H.J., Warwick, S.I., Johnson, E.N., et Falk, K.C. (2011). « Gene flow between canola and mustard in Saskatchewan, Canada. », Canadian Weed Science Society 65th Annual Meeting, Marriott Gateway on the Falls, Niagara Falls, ON, Canada, November 21-24, 2011, p. 58. (Affiche)
  • Blackshaw, R.E., Hao, X., Clayton, G.W., Harker, K.N., O'Donovan, J.T., Johnson, E.N., et Vera, C.L. (2011). « Canola response to polymer-coated urea versus urea in a four-year zero-tillage cropping system on the Canadian prairies. », 13th International Rapeseed Congress, Prague, Czech Republic, June 5-9, 2011, p. 61-64.
  • Fedoruk, L.K., Shirtliffe, S.J., et Johnson, E.N. (2011). « Utilizing the Critical Period of Weed Control Concept to Optimize Herbicide Timing in Lentil. », 51st Meeting Weed Science Society of America, Hilton Portland & Executive Tower Hotel, Portland, OR, USA, February 7-10, 2011. (Présentation)
  • Harker, K.N., Brandt, S.A., O'Donovan, J.T., Blackshaw, R.E., Johnson, E.N., et Kutcher, H.R. (2011). « The Impact of Two Years of Wild Oat Management After Four Years of Low Crop Inputs in Barley and Canola. », 51st Meeting Weed Science Society of America, Hilton Portland & Executive Tower Hotel, Portland, OR, USA, February 7-10, 2011, pp. 62. (Présentation)
  • Harker, K.N., Turkington, T.K., O'Donovan, J.T., Kutcher, H.R., et Johnson, E.N. (2011). « Barley Herbicide and Fungicide Tank-Mixtures? », Canadian Weed Science Society 65th Annual Meeting, Marriott Gateway on the Falls, Niagara Falls, ON, Canada, November 21-24, 2011, p. 46. (Résumé)
  • Harker, K.N., Turkington, T.K., O'Donovan, J.T., Kutcher, H.R., et Johnson, E.N. (2011). « Barley Herbicide and Fungicide Tank-Mixtures? », Canadian Weed Science Society 65th Annual Meeting, Marriott Gateway on the Falls, Niagara Falls, ON, Canada, November 24, 2011. (Présentation)
  • Isidro, J., Singh, A.K., Wang, H., DePauw, R.M., Pozniak, C.J., Knox, R.E., Cuthbert, R.D., Beres, B.L., et Johnson, E.N. (2011). « Effects of plant density on durum crop production. », 1st Canadian Wheat Symposium, Winnipeg, MB, Canada, November 30-December 2, 2011.
  • Johnson, E.N. (2011). « Breeders excited with performance of new mustard. », Western Producer, (Sept. 15).
  • Johnson, E.N. (2011). « Breeders excited with performance of new mustard. », SaskMustard, Mustard Field Day, Swift Current, SK, Canada, July 12, 2011. (Présentation)
  • Johnson, E.N. (2011). « Controlling Weeds in Pulses in 2011. », PulsePoint, 11(1), p. 3-4.
  • Johnson, E.N., Beckie, H.J., Hall, L.M., Schoenau, J.J., Willenborg, C.J., Sapsford, K.L., et Vandenberg, A. (2011). « Progress in managing herbicide resistant weeds in pulses. », Canadian Weed Science Society 65th Annual Meeting, Marriott Gateway on the Falls, Niagara Falls, ON, Canada, November 21-24, 2011.
  • Johnson, E.N., Beckie, H.J., Hall, L.M., Schoenau, J.J., Willenborg, C.J., et Sapsford, K.L. (2011). « Progress in Managing Herbicide Resistant Weeds in Pulse Crops. », Canadian Weed Science Society 65th Annual Meeting, Marriott Gateway on the Falls, Niagara Falls, ON, Canada, November 21-24, 2011, p. 48-49. (Résumé)
  • Johnson, E.N., Beckie, H.J., Holm, F.A., Sapsford, K.L., et Vandenberg, A. (2011). « Weed control challenges in pulses in 2011. », Pulse Days 2011, Saskatoon, SK, Canada, January 11, 2011. (Présentation)
  • Johnson, E.N., Brandt, S.A., Hall, L.M., et Smith, E.G. (2011). « Agronomic challenges and opportunities for second generation crops with novel traits and new crops. », dans Beckie, H.J. and Hall , L.M. (dir.) - Topics in Canadian Weed Science, Vol. 8. New Crops and Crops with Second-Generation Traits: Weed Management Challenges, Canadian Weed Science Society – Société canadienne de malherbologie, Pinawa, MB, p. 31-48.
  • Johnson, E.N., Falk, K.C., et Ramsey, S. (2011). « Oilseeds of the future. », Crop Production Show, Saskatoon, SK, Canada, January 10, 2011. (Affiche)
  • Légère, A., Beckie, H.J., Hrynewich, B.L., Lozinski, C., Johnson, E.N., Warwick, S.I., et Stevenson, C. (2011). « Kochia with ALS (AHAS) Mutations: More on the Manitoba Conundrum. », 51st Meeting Weed Science Society of America, Hilton Portland & Executive Tower Hotel, Portland, OR, USA, February 7-10, 2011. (Présentation)
  • O'Donovan, J.T., Blackshaw, R.E., Grant, C.A., Harker, K.N., Lafond, G.P., Johnson, E.N., Gan, Y.T., May, W.E., Turkington, T.K., et Lupwayi, N.Z. (2011). « Legume Crops to Improve Soil Fertility for Enhanced Canola Production. », 2011 ASA-CSSA-SSSA International Annual Meeting: Fundamental for life: soil, crop and environmental sciences, San Antonio, TX, USA, October 16-19, 2011. (Affiche)
  • Sapsford, K.L., Johnson, E.N., et Vandenberg, A. (2011). « Searching for improved lentil tolerance to PPO Inhibitor (Group 14) herbicides. », Canadian Weed Science Society 65th Annual Meeting, Marriott Gateway on the Falls, Niagara Falls, ON, Canada, November 21-24, 2011, p. 48. (Résumé)
  • Turkington, T.K., Kutcher, H.R., Xi, K., Harker, K.N., O'Donovan, J.T., et Johnson, E.N. (2011). « The impact of fungicide and herbicide timing on barley leaf disease severity, weed management and crop productivity. », The Western Producer, 101(6), p. S180. (Résumé)

2010

  • Bailey, K.L., Boyetchko, S.M., Peng, G., Hynes, R.K., Erlandson, M.A., et Johnson, E.N. (2010). « Development of biopesticides for weeds, insects, and diseases. », Manitoba Weed Supervisors Association meeting, Russell, MB, Canada, April 9, 2010. (Présentation)
  • Bailey, K.L., Boyetchko, S.M., Peng, G., Hynes, R.K., Erlandson, M.A., et Johnson, E.N. (2010). « Development of biopesticides for weeds, insects, and diseases. », Saskatchewan Alfalfa Seed Producers Association (SASPA): 2010 Saskatchewan Alfalfa Seed Producers Conference, Radisson Hotel, Saskatoon, SK, Canada, January 15-16, 2010.
  • Blackshaw, R.E., Brandt, S.A., Johnson, E.N., Harker, K.N., O'Donovan, J.T., Turkington, T.K., et Kutcher, H.R. (2010). « Which crop inputs have the greatest impact on canola yield? », 2010 ASA-CSSA-SSSA International Annual Meeting, Long Beach Convention Center, Long Beach, CA, USA, October 31-November 4, 2010. (Résumé)
  • Blackshaw, R.E., Harker, K.N., O'Donovan, J.T., Johnson, E.N., Kutcher, H.R., et Hao, X. (2010). « ESN effects on canola establishment, weed competition and canola yield in a four-year study. », 2010 ASA-CSSA-SSSA International Annual Meeting, Long Beach Convention Center, Long Beach, CA, USA, October 31-November 4, 2010.
  • Johnson, E.N. (2010). « Developing Agronomic Packages for New Crops and 2nd Generation Crops with Novel Traits: Constraints and Opportunities. », Canadian Weed Science Society 64th Annual Meeting, Delta Regina, Regina, SK, Canada, November 15-18, 2010.

2009

  • Bailey, K.L., Derby, J.-A., et Johnson, E.N. (2009). « Can the bioherbicide Phoma macrostoma control agricultural weeds? », Canadian Weed Science Society 63rd Annual Meeting, Delta Prince Edward, Charlottetown, PEI, Canada, November 24-26, 2009.
  • Bailey, K.L., Derby, J.-A., et Johnson, E.N. (2009). « Can the bioherbicide Phoma macrostoma control agricultural weeds? », Field Days 2009: Organic Research Update, University of Saskatchewan, Saskatoon, SK, Canada, October 27, 2009.
  • Bailey, K.L., Derby, J.-A., et Johnson, E.N. (2009). « Can the bioherbicide Phoma macrostoma control agricultural weeds? », University of Saskatchewan Research Update, University of Saskatchewan, Saskatoon, SK, Canada, December 16, 2009. (Présentation)
  • Barker, B., Johnson, E.N., et Blackshaw, R.E. (2009). « An innovative approach to innovative chemistry. », Top Crop Manager (Western edition), 2009(November), p. 48-49.
  • Beckie, H.J., Johnson, E.N., Blackshaw, R.E., et Gan, Y.T. (2009). « Weed suppression by canola and mustard cultivars. », 8th European Weed Research Society (EWRS) Workshop on Physical and Cultural Weed Control, Zaragoza, Spain, March 9-11, 2009, p. 2. (Résumé)
  • Brandt, S.A., Harker, N., O'Donovan, J.T., Kutcher, H.R., Clayton, G.W., Lupwayi, N.Z., Turkington, T.K., Kapiniak, A., et Johnson, E.N. (2009). « The role of inputs in a canola-barley rotation: results of a 4-year study. », - 2008 Canola Trials: Studies conducted under the AAFC-Prairie Canola Agronomic Research (PCAR) Agreement, Agriculture and Agri-Food Canada (AAFC)/Agriculture et Agroalimentaire Canada (AAC), p. 91-142.
  • Frick, B.L., Harker, N., Johnson, E.N., Shirtliffe, S.J., Bailey, K.L., Leeson, J.Y., Wolf, T.M., et Nelson, A. (2009). « Organic Weed Management: A prairie research fly-by. », Organic Cereals Research Symposium, Banff Centre, Banff, AB, Canada, February 22-23, 2009.
  • Harker, K.N., Brandt, S.A., Johnson, E.N., O'Donovan, J.T., Blackshaw, R.E., Turkington, T.K., et Kutcher, H.R. (2009). « Input reduction impacts on weeds and crops in barley (Hordeum vulgare) and canola (Brassica napus). », 49th Annual Meeting of the Weed Science Society of America (WSSA), Hilton in the Walt Disney World Resort, Orlando, FL, USA, February 9-13, 2009, Abstract #507, p. 1. (Résumé)
  • Harker, K.N., Brandt, S.A., O'Donovan, J.T., Blackshaw, R.E., Johnson, E.N., Turkington, T.K., Kutcher, H.R., et Clayton, G.W. (2009). « Wild oat populations after four years in a low-input barley-canola rotation. », Canadian Weed Science Society 63rd Annual Meeting, Delta Prince Edward, Charlottetown, PEI, Canada, November 24-26, 2009.
  • Johnson, E.N., Blackshaw, R.E., Holm, F.A., et Sapsford, K.L. (2009). « Broad-spectrum weed control in pulse crops with saflufenacil and sulfentrazone. », Canadian Weed Science Society 63rd Annual Meeting, Delta Prince Edward, Charlottetown, PEI, Canada, November 24-26, 2009, p. 1. (Affiche)
  • Sapsford, K.L., Holm, F.A., Johnson, E.N., et Beckie, H.J. (2009). « Control of group 2 (ALS) resistant kochia (Kochia scoparia) in spring wheat (Triticum aestivum). », Canadian Weed Science Society 63rd Annual Meeting, Delta Prince Edward, Charlottetown, PEI, Canada, November 24-26, 2009. (Résumé)
  • Sapsford, K.L., Holm, F.A., Johnson, E.N., et Beckie, H.J. (2009). « Control of group 2 (ALS) resistant kochia (Kochia scoparia) in spring wheat (Triticum aestivum). », Pesticide Resistance Workshop: Understanding pesticides, mechanisms of resistance and how to deal with resistance, University of Saskatchewan, Saskatoon, SK, Canada, February 25, 2009. (Atelier)
  • Sapsford, K.L., Holm, F.A., Johnson, E.N., et Beckie, H.J. (2009). « Control of group 2 (ALS) resistant kochia (Kochia scoparia) in spring wheat (Triticum aestivum). », Soils and Crops Workshop 2009, Western College of Veterinary Medicine, Saskatoon, SK, Canada, February 25-26, 2009. (Atelier)
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