Herve Van der Heyden, Ph. D.

Research Scientist

Plant Root Pathology

Current research and/or projects

- Population genetics of Pythium tracheiphilum responsible for Pythium stunt in lettuce.

- Improving plant health monitoring using third-generation sequencing.

Research and/or project statements

My work focuses on the phytopathology of soil-borne pathogens (fungi and oomycetes). More specifically, I am interested in the population biology of plant pathogens and the application of molecular and statistical techniques to model, monitor and improve our understanding of pathogen community dynamics, to anticipate and mitigate the risks of root disease development and make agrosystems more resilient.

Education and awards


Ph. D., Plant Science,  McGill

M. Sc., Plant Science, McGill

B. Sc. Biology, Université de Montréal


2021 Achievements in Plant Disease Management Award: The Canadian Phytopathological Scociety  

2018 International IPM award of recognition (Équipe): 9th International IPM Symposium (Baltimore, Maryland, USA)

Key publications

  1. Poirier, S., Dauphinais, N., Van Der Heyden, H., Véronneau, P.Y., Bélair, G., Gravel, V., Mimee, B. (2019). Host range and genetic characterization of ditylenchus dipsaci populations from Eastern Canada. Plant Disease, [online] 103(3), 456-460. http://dx.doi.org/10.1094/PDIS-07-18-1201-RE

    2019 - View publication details

  2. Gobeil-Richard, M., Tremblay, D.M., Beaulieu, C., Van der Heyden, H., Carisse, O. (2016). A pyrosequencing-based method to quantify genetic substitutions associated with resistance to succinate dehydrogenase inhibitor fungicides in Botrytis spp. populations. Pest Management Science, [online] 72(3), 566-573. http://dx.doi.org/10.1002/ps.4026

    2016 - View publication details

  3. Carisse, O., Van Der Heyden, H. (2015). Relationship of airborne botrytis cinerea conidium concentration to tomato flower and stem infections: A threshold for de-leafing operations. Plant Disease, [online] 99(1), 137-142. http://dx.doi.org/10.1094/PDIS-05-14-0490-RE

    2015 - View publication details

  4. Fall, M.L., Van der Heyden, H., Brodeur, L., Leclerc, Y., Moreau, G., Carisse, O. (2015). Spatiotemporal variation in airborne sporangia of Phytophthora infestans: Characterization and initiatives towards improving potato late blight risk estimation. Plant Pathology, [online] 64(1), 178-190. http://dx.doi.org/10.1111/ppa.12235

    2015 - View publication details

  5. Van der Heyden, H., Lefebvre, M., Roberge, L., Brodeur, L., Carisse, O. (2014). Spatial pattern of strawberry powdery mildew (Podosphaera aphanis) and airborne inoculum. Plant Disease, [online] 98(1), 43-54. http://dx.doi.org/10.1094/PDIS-10-12-0946-RE

    2014 - View publication details

  6. Van Der Heyden, H., Dutilleul, P., Brodeur, L., Carisse, O. (2014). Spatial distribution of single-nucleotide polymorphisms related to fungicide resistance and implications for sampling. Phytopathology, [online] 104(6), 604-613. http://dx.doi.org/10.1094/PHYTO-03-13-0085-R

    2014 - View publication details

  7. Carisse, O., Levasseur, A., Van der Heyden, H. (2012). A new risk indicator for botrytis leaf blight of onion caused by Botrytis squamosa based on infection efficiency of airborne inoculum. Plant Pathology, [online] 61(6), 1154-1164. http://dx.doi.org/10.1111/j.1365-3059.2012.02594.x

    2012 - View publication details

  8. Van der Heyden, H., Carisse, O., Brodeur, L. (2012). Comparison of monitoring based indicators for initiating fungicide spray programs to control Botrytis leaf blight of onion. Crop Protection, [online] 33 21-28. http://dx.doi.org/10.1016/j.cropro.2011.11.008

    2012 - View publication details


Adjunct Professor, Université de Sherbrooke (Biology Dept.)