Martin Laforest

Current research and/or projects

Early detection, monitoring and management of herbicide resistant weeds in field vegetables

Complexe herbicide resistance

Triazine resistant Chenopodium album

Impact of cover crops in horticulture

Research and/or project statements

My projects consist in detecting the presence of herbicide-resistant weeds and explaining the mechanism that the plant uses to survive the herbicide treatment. With this information, we develop genetic tests (molecular markers) which make possible the rapid detection of identical cases. We also study weed populations in order to better understand and possibly act on field implantation. This work is in line with the sector strategy in several ways. By its innovation, it allows to be more competitive in the external markets because it reduces the cost of inputs (herbicides) and therefore the cost of production. These tools, which provide rapid knowledge of resistance cases, mitigate risks and prevent unnecessary use of herbicides while encouraging the development of farming methods that will produce better results using resources with more efficiency. 

Professional activities / interests

Molecular mechanisms of weeds herbicide resistance
Development of diagnostic tools for herbicide resistance

Population genetics of weeds

Genetics, genomics and transcriptomics

Education and awards

Ph.D. Molecular Biology, Laval Université, 1999
B.Sc. Biological Sciecnes, University of Montréal, 1992

Key publications

  1. Page, E.R.*, R.E. Nurse, S. Meloche, K. Bosveld, C. Grainger, K. Obeid, M. Filotas, M.J. Simard and M. Laforest. 2021. Import of Palmer amaranth (Amaranthus palmeri S. Wats.) seed with sweet potato (Ipomea batatas
    (L.) Lam) slips. Joint virtual meeting of the Canadian Weed Science Society and Weed Science Society of America, February 22nd – 24th 2022 (Poster Presentation).

    2022 - View publication details

  2. Laforest, M., Bisaillon, K., Soufiane, B. Maheux, L., Fortin S., Martin, S., James T. , Miville D. , Marcoux, A. and Simard, M.-J. 2021. Glyphosate Resistant Bird Rape Mustard (Brassica rapa) Through Introgression of a Transgenic Construct: Distribution and Genetic Characterization. Weed Science Society of America meeting, March 15-18, Online.

    2021 - View publication details

  3. Pandian, B.A., Friesen, A., Laforest, M., Peterson, D.E., Vara Prasad, P.V., Jugulam, M. (2020). Confirmation and characterization of the first case of acetolactate synthase (ALS)-inhibitor resistant wild buckwheat (Polygonum convolvulus) in the United States. Agronomy, [online] 10(10), http://dx.doi.org/10.3390/agronomy10101496

    2020 - View publication details

  4. McKenzie-Gopsill, A., Graham, G., Laforest, M., Ibarra, S., Hann, S., Wagg, C. (2020). Occurrence and management of PSII-inhibitor-resistant chenopodium album L. In atlantic canadian potato production. Agronomy, [online] 10(9), http://dx.doi.org/10.3390/agronomy10091369

    2020 - View publication details

  5. McKenzie-Gopsill AG, Graham G, Laforest M, Ibarra S, Hann S, Wagg C. 2020. Tracking and managing triazine resistant Chenopodium album in Atlantic Canadian potato production. Prince Edward Island Soil and Crop Conference. March 5th 2020, Summerside PE Canada

    2020 - View publication details

  6. McKenzie-Gopsill AG, Graham G, Laforest M, Ibarra S, Hann S, Wagg C. 2020. Tracking and managing triazine resistant Chenopodium album in Atlantic Canadian potato production. New Brunswick Soil and Crop Improvement Association Annual General Meeting. Feb 21st 2020, Woodstock NB Canada

    2020 - View publication details

  7. Plant and Animal Genome Conference, January 11-15, 2020.

    2020 - View publication details

  8. Laforest, M., Bisaillon, K., Ciotola, M., Cadieux, M., Hébert, P.O., Toussaint, V., Svircev, A.M. (2019). Rapid identification of erwinia amylovora and pseudomonas syringae species and characterization of E. Amylovora streptomycin resistance using quantitative PCR assays. Canadian Journal of Microbiology, [online] 65(7), 496-509. http://dx.doi.org/10.1139/cjm-2018-0587

    2019 - View publication details

  9. Page, E.R., Meloche, S., Bae, J., Larsen, R.J., Laforest, M., Nurse, R.E. (2019). Tricotyledenous giant ragweed (Ambrosia trifida L.). Canadian Journal of Plant Science, [online] 99(1), 84-87. http://dx.doi.org/10.1139/cjps-2018-0148

    2019 - View publication details

  10. Laforest, M., Soufiane, B. (2018). Coevolution of two sulfonylurea-resistant common chickweed (Stellaria media) biotypes with different mutations in the acetolactate synthase Gene. Weed Science, [online] 66(4), 439-445. http://dx.doi.org/10.1017/wsc.2018.26

    2018 - View publication details

  11. Page, E.R., Grainger, C.M., Laforest, M., Nurse, R.E., Rajcan, I., Bae, J., Tardif, F.J. (2018). Target and Non-target site Mechanisms Confer Resistance to Glyphosate in Canadian Accessions of Conyza canadensis. Weed Science, [online] 66(2), 234-245. http://dx.doi.org/10.1017/wsc.2017.69

    2018 - View publication details

  12. Breeden, S.M., Brosnan, J.T., Breeden, G.K., Vargas, J.J., Eichberger, G., Tresch, S., Laforest, M. (2017). Controlling Dinitroaniline-Resistant Goosegrass (Eleusine indica) in Turfgrass, 31(6), 883-889. http://dx.doi.org/10.1017/wet.2017.57

    2017 - View publication details

  13. Laforest, M., Soufiane, B., Simard, M.J., Obeid, K., Page, E., Nurse, R.E. (2017). Acetyl-CoA carboxylase overexpression in herbicide-resistant large crabgrass (Digitaria sanguinalis). Pest Management Science, [online] 73(11), 2227-2235. http://dx.doi.org/10.1002/ps.4675

    2017 - View publication details

  14. Marie-Josée Simard,a Martin Laforest,a Brahim Soufiane,a Diane Lyse Benoit,a François J. Tardifb

    2017 - View publication details

  15. Brosnan, J.T., Vargas, J.J., Breeden, G.K., Grier, L., Aponte, R.A., Tresch, S., Laforest, M. (2016). A new amino acid substitution (Ala-205-Phe) in acetolactate synthase (ALS) confers broad spectrum resistance to ALS-inhibiting herbicides. Planta, [online] 243(1), 149-159. http://dx.doi.org/10.1007/s00425-015-2399-9

    2016 - View publication details

  16. Carisse, O., Kawchuk, L.M., Peters, R.D., Bilodeau, G.J., Lévesque, C.A., Vincent, C., and Laforest, M. (2015). "Biovigilance: a framework for effective pest management.", National Science Day on Biovigilance and Precision Agriculture, Agriculture and Agri-Food Canada, Saint-Jean-sur-Richelieu, QC, Canada, July 9, 2015. (Presentation)

    2015 - View publication details

  17. Laforest, M. and Soufiane, B. (2015) Résistance des mauvaises herbes : causes et mode de détection par test ADN, Journée pesticides de Lanaudière.

    2015 - View publication details

  18. J.T. Brosnan, J.J. Vargas, G.K. Breeden, L. Grier, S. Tresch, R.A. Aponte, and M. LaForest (2015) A New Target Site Mutation Conferring Broad Spectrum Resistance to ALS-Inhibiting Herbicides, poster at CWSS-SCM Annual Meeting, Edmonton, Canada, November 2015.

    2015 - View publication details

  19. J.T. Brosnan, J.J. Vargas, G.K. Breeden, L. Grier, S. Tresch, R.A. Aponte, and M. LaForest (2015) A New Target Site Mutation Conferring Broad Spectrum Resistance to ALS-Inhibiting Herbicides, poster at Resistance 2015, Rothamsted Research, UK, September 2015.

    2015 - View publication details

  20. Marsan-Pelletier, F., Simard, M.-J. and Laforest, M. (2016) Résistance aux herbicides au Québec, Conférences CRAAQ.

    2015 - View publication details

Research facility

430 Gouin Boulevard
Saint-Jean-sur-Richelieu, QC J3B 3E6
Canada

Affiliations

Canadian Weed Science Society
Québec Society for the Protection of Plants

Weed Science Society of America

International Weed Science Society

Associate Professor, Laval University

Language

English
French