Speaker Bios & Session Summaries.

Tom-Hsiang_headshot

 Tom Hsiang, PhD

Dr. Tom Hsiang is a professor in the School of Environmental Science at the University of Guelph, Ontario, specializing in fungal diseases of plants. Before arriving in Guelph he worked on tree and landscape plant diseases in Washington State, US, where he obtained his Ph.D. (University of Washington) and conducted post-doctoral studies (Washington State University) both in Forest Pathology. He is from Vancouver, BC and obtained his B.Sc. and M.Sc degrees in Forest Biology and Pathology at the University of British Columbia. His current teaching and research involve diseases of trees and turfgrasses, particularly biology and genomics of fungal pathogens as well as disease management. He has done extensive work with snow molds of grasses and fungicide resistance.

Why Do Fungicides Not Work as Well as They Did Before?

Session Summary

This session will cover the fundamentals of fungicide resistance, how it occurs and what you would observe in the field. Then a summary of a 30-year study dollar spot resistance to DMI fungicides will be presented, as well as how to deal with the evolution of resistance using integrated pest management. Anti-fungicide resistance strategies and prevention programs will be discussed, and this session will end with an explanation of the toxicity of fungicides to other commonly encountered substances.
 
Learning Objectives:
  • understand how fungicide resistance develops
  • prevent the issue of loss of fungicidal activity from readily occurring
  • decide how to better choose disease management products
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