Justin Renkema, PhD

Image Justin Renkema
Research Scientist

Applied entomologist conducting research on biological, chemical and cultural practices for improving management of pests in fruit crops

Current research and/or projects

I conduct research on the ecology and biology of economically important insects and mites in fruit crops, with the goal of improving pest management through a better understanding of how to integrate biological, cultural, physical, and chemical control methods.

Research and/or project statements

Current projects:

  • Steam treatment of transplants and biopesticide efficacy for controlling cyclamen mite in strawberry
  • Interactions of entomopathogens and composts/mulches for white grub control in berry crops
  • Developing molecular tools for improved spotted wing drosophila monitoring in fruit crops
  • Identifcation of leafhoppers and their parasitoids in grapes
  • Improving chilli thrips management in Florida strawberry
  • Determing efficacy of novel natural enemies for spotted wing drosophila

Education and awards

Ph.D. Biology, Dalhousie University, 2011

M.Sc. Environmental Biology, University of Guelph, 2004

B.Sc. (Hons.) Biology, Redeemer University College, 2002

International experience and/or work

Current international collaborative projects:

  • Remote sensing of spider mite damage in strawberry (University of Florida)
  • Using flowering plant strips to attract beneficial insects and reduce thrips in strawberry and fruiting vegetables (University of Florida)

Key publications

  1. Laprise, M., Renkema, J. & Parent J.-P. 2019. I spy Hemipterans: Assessing the biodiversity of insects in Niagara vineyards. Ontario Fruit and Vegetable Convention, Niagara, ON, Canada. 20-21 February 2019.

    2019 - View publication details

  2. Renkema, J.M., Cutler, G.C., Lynch, D.H., Mackenzie, K., Walde, S.J. (2016). Organic mulches in highbush blueberries alter beetle (Coleoptera) community composition and improve functional group abundance and diversity, 18(2), 119-127. http://dx.doi.org/10.1111/afe.12144

    2016 - View publication details

  3. Renkema, J.M., Telfer, Z., Gariepy, T., Hallett, R.H. (2015). Dalotia coriaria as a predator of Drosophila suzukii: Functional responses, reduced fruit infestation and molecular diagnostics, 89 1-10. http://dx.doi.org/10.1016/j.biocontrol.2015.04.024

    2015 - View publication details

  4. Renkema, J.M., Cutler, G.C., Gaul, S.O. (2014). Field type, trap type and field-edge characteristics affect Rhagoletis mendax captures in lowbush blueberries, 70(11), 1720-1727. http://dx.doi.org/10.1002/ps.3714

    2014 - View publication details

  5. Renkema, J.M., Lynch, D.H., Cutler, G.C., MacKenzie, K., Walde, S.J. (2012). Ground and rove beetles (Coleoptera: Carabidae and Staphylinidae) are affected by mulches and weeds in highbush blueberries, 41(5), 1097-1106. http://dx.doi.org/10.1603/EN12122

    2012 - View publication details

  6. Renkema, J.M., Lynch, D.H., Cutler, G.C., MacKenzie, K., Walde, S.J. (2012). Emergence of blueberry maggot flies (Diptera: Tephritidae) from mulches and soil at various depths, 41(2), 370-376. http://dx.doi.org/10.1603/EN11200

    2012 - View publication details

  7. Renkema, J.M., Cutler, G.C., Lynch, D.H., MacKenzie, K., Walde, S.J. (2011). Mulch type and moisture level affect pupation depth of Rhagoletis mendax Curran (Diptera: Tephritidae) in the laboratory, 84(3), 281-287. http://dx.doi.org/10.1007/s10340-011-0365-2

    2011 - View publication details

Research facility

1391 Sandford Street
London, ON N5V 4T3


Entomological Society of America

International Organization of Biological Control

Florida Entomological Society