AWC - Funded Research

Biology and control of foxtail barley

AWC contribution: $30,000


Foxtail barley is a difficult to control weed that can be managed within a competitive crop rotation, but location in saline areas tends to decrease crop competition, making growers more dependent on chemical control. This research project proposes to combine glyphosate and pyroxasulfone to provide an integrated approach for controlling both established and seedling foxtail barley.


  1. Find optimal combination of herbicides for control of established and seeding foxtail barley in spring wheat
  2. Quantify the time of emergence of foxtail barley seedlings based on growing degree dates or thermal time
  3. Use the project to train a graduate student in weed biology and herbicide activity

Benefit to producers:

It has been reported that foxtail barley decreases wheat yield. Foxtail barley is also one of the hardest to control weeds in spring cereals and is increasing in south and central Alberta. Research finding will address grower’s needs for a herbicide solution for foxtail barley. 


Dr. Linda Hall is a professor in the Faculty of Agriculture Life and Environmental Science at the University of Alberta. She conducts research in the environmental impacts of transgenic crops, gene flow via pollen and seeds, weed science and agronomy. She is interested in quantifying the invasive potential of novel weeds and crops. In addition to research, she teaches weed science and cropping systems.  Dr. Hall is an editor of GM Crops and has recently received awards for excellence in Weed Science and graduate student supervision.  She currently has eleven graduate students conducting research in a range of agronomic disciplines.