Geneviève Marchand, Ph.D.

Image Geneviève Marchand
Research Scientist

I lead a research program on plant pathology for vegetable crops grown in the greenhouse and other controlled environments.

Current research and/or projects

Developing resistance to Tomato brown rugose fruit virus 

Nunavut Off-Grid Mobile Plant Growth Unit in Gjoa Haven to Support Northern and Inuit-led Agriculture Research 

Development of a modular microclimate monitoring system to monitor the impact of new technologies on greenhouse energy efficiency 

Strategies for the Growth of Healthy Nutrient-Rich Plants for Northern and Remote Communities


Research and/or project statements

My research program aims to investigate new ways to detect, identify, and manage pathogens causing diseases having an economic impact on vegetables grown in greenhouses and controlled environments.

I am also occasionally called upon to participate in research projects on other horticultural crops.


Professional activities / interests

I am a member of the Canadian Phytopathological Society (CPS), where I serve on different committees. I am also the editor for section L, "Vegetables and Special Crops - Diseases" of the "Pest Management Research Report - Insect Pests and Plant Diseases" published annually by the CPS.

Education and awards

Ph.D. in Plant Biology, Université Laval, 2008

Key publications

  1. (2024) Tri-society conference: Canadian Phytopathological Society, Canadian Society for Horticultural Science, Canadian Society of Agronomy, 2023, Canadian Journal of Plant Pathology, DOI: 10.1080/07060661.2024.2306734

    2024 - View publication details

  2. Greenhouse Canada, September 28, 2021

    2021 - View publication details

  3. Marchand, G. Recherches et développement. Webinaire sur le ToBRFV, présenté par le Ministère de l'Agriculture, des Pêcheries, et de l'Alimentation du Québec dans le cadre des Vendredis horticoles de la Montérégie, en ligne, 2021/01/15.

    2021 - View publication details

  4. Ellouze, W., Nesbitt, D., Parcey, M., Gayder, S., Marchand, G., Svircev, A.M., Tambong, J.T. (2020). Draft Genome Sequences of Hazelnut-Associated Pseudomonas Strains Isolated in Ontario, Canada, 9(45),

    2020 - View publication details

  5. Lambert, L., McCreary, C., Tracey, A., Marchand, G., Shallow, N. 2019. Virus du fruit rugueux brun de la tomate (ToBRFV). Fiche technique, Réseau d'avertissements phytosanitaires, cultures maraîchères en serre, document 100299

    2019 - View publication details

  6. Lebreton, A., Labbé, C., De Ronne, M., Xue, A.G., Marchand, G., Bélanger, R.R. (2018). Development of a simple hydroponic assay to study vertical and horizontal resistance of soybean and pathotypes of phytophthora sojae. Plant Disease, [online] 102(1), 114-123.

    2018 - View publication details

  7. Henriquez, M.A., McLaren, D.L., Conner, R.L., Hwang, S.F., Chang, K.F., Strelkov, S.E., Gossen, B.D., Yu, K., Xue, A., Marchand, G., Henderson, T.L., Kerley, T.J., and Penner, W.C. 2016. Phytophthora stem and root rot of soybean in Manitoba: Isolation and race characterization. Poster AP17, Proc. 10th Can Pulse Res. Workshop, Winnipeg, MB, Oct. 27 28, 2016. p. 52.

    2016 - View publication details

  8. Xue, A.G., Marchand, G., Chen, Y., Zhang, S., Cober, E.R., Tenuta, A. (2015). Races of Phytophthora sojae in Ontario, Canada, 2010-2012. Canadian Journal of Plant Pathology, [online] 37(3), 376-383.

    2015 - View publication details

  9. Xue, A.G., Chen, Y., Marchand, G., Guo, W., Ren, C., Savard, M., Mcelroy, A.R.B. (2015). Timing of inoculation and fusarium species affect the severity of fusarium head blight on oat. Canadian Journal of Plant Science, [online] 95(3), 517-524.

    2015 - View publication details

  10. Marchand, G., Chen, Y., Berhane, N.A., Wei, L., Lévesque, C.A., Xue, A.G. (2014). Identification of Pythium spp. from the rhizosphere of soybeans in Ontario, Canada. Canadian Journal of Plant Pathology, [online] 36(2), 246-251.

    2014 - View publication details