Grains Research and Development

Brome grass

Brome grass  (Bromus spp.)

Bromus diandrus seedling showing seed in root system. This helps determine whether the plant is brome or wild oats.
Bromus diandrus seedling showing seed
in root system. This helps determine
whether the plant is brome or wild oats.
(Photo A. Storrie)

The most common species in the genus Bromus in southern Australia are Bromus diandrus and B. rigidus (both short- and long-awned varieties).

Factors that make brome grass a major weed:

  • Both B. diandrus and B. rigidus compete against pasture and crop species for nutrients and water.
  • Brome grasses produce large numbers of seeds
  • Seeds of brome grasses cause contamination problems
  • Both B. diandrus and B. rigidus act as alternate hosts to cereal diseases

Further detail about this weed including integrated weed management tactics that could be considered when developing a management plan can be found in the section on problem weeds in the Integrated Weed Management Manual.

Further information

Ecology and biology of common weeds are outlined in section 6 of the Integrated Weed Management Manual.  

GRDC fact sheets and other publications

Brome Grass (Western and southern factsheet, 2011)

Update papers

Hitting the right target - what are our most costly weeds? (2015)

Brome and barley grass management in cropping systems of southern Australia (2013)

Other information

Brome grass management in cereal crops, YouTube video (2013) Dr Peter Boutsalis of Plant Science Consulting is conducting research on behalf of the University of Adelaide and GRDC on brome grass control in cereal crops in southern Australia.

Managing brome grass in mallee no-till cropping systems (2013), Tanja Morgan and Sam Kleemann, Mallee Sustainable Farming

A survey of southern New South Wales to determine the level of herbicide resistance in brome grass and barley grass populations, John C. Broster, Eric A. Koetz and Hanwen Wu pp. 274-277, 17th Australasian Weeds Conference (2010)

Herbicide cross resistance in Bromus diandrus and B. rigidus populations across south-eastern Australia, Peter Boutsalis, Christopher Preston and Gurjeet Gill   pp. 224-228, 8th Australasian Weeds Conference (2012) 

Brome grass control in wheat (2002), Birchip cropping group trial 

Non-target-site-based resistance to ALS-inhibiting herbicides in six Bromus rigidus populations from Western Australian cropping fields (2012), Owen, M.J., Goggin, D.E. and Powles, S.B., Pest Management Science, 68, 1077-1082

AHRI brome grass survey (2010)