sustainability through science & innovation

russian wheat aphid risk assessment and regional thresholds

Project partners: South Australian Research and Development Institute

Funding body: the Grains Research and Development Corporation

Russian wheat aphid (RWA) is now a management concern for grain growers in regions where it has been found (South Australia, Victoria, New South Wales, and Tasmania) and poses a risk for currently unaffected regions. Limited research under local agro-climatic conditions and farming systems currently exists. Through this project we will:

  • Investigate the relationship between aphid numbers, plant symptoms and yield loss across regions
  • Assess the effects of seed treatments and insecticide sprays on aphid numbers
  • Develop regional economic thresholds
  • Monitor for RWA populations on summer hosts, such as grasses and volunteer cereals
  • Assess the role of local climate and land use in supporting RWA populations over summer
  • Develop models to predict aphid growth over this period.

View the project flyer and keep up to date with project progress at the RWA Portal.

For further information email Dr Jessica Lye at