Hester E. Williams PhD

Postdoctoral Research Scientist

Involved in research on the biological control of Tree of Heaven (Ailanthus altissima) and St. John's wort (Hypericum perforatum).

Current research and/or projects

Biological Control of Ailanthus altissima in Canada.

Evaluation of the current status of the historical biocontrol programme on Hypericum perforatum in British Columbia, Canada.


Professional activities / interests

Collaboration with national and international researchers on biocontrol of invasive plants.

Mentoring students


Education and awards

PhD Biological Science, Auckland University, 2020

M.Sc. Entomology, Rhodes University, 2003

Nat. Dipl. Agricultural Research - Botany, Tshwane University of Technology, 1994

International experience and/or work

South Africa (Agricultural Research Council - Plant Protection Research Institute)

  • Biological control of several subtropical invasive plant species in South Africa, including: Lantana camara, Doxantha unguis-cati, and Tecoma stans.

New Zealand (Auckland University & Manaaki Whenua LandCare Research)

  • Completed my PhD in Biological Science by using a biocontrol agent species as proxy to study processes underpinning the early stages of bio-invasion 

Research facility

4200 Highway #97
Summerland, BC V0H 1Z0



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