The spread of Russian wheat aphid (RWA) (Diuraphis noxia) in the Northern grains region is considered inevitable. When it might be detected in wheat and barley is less clear as the key drivers of its spread are not well understood in Australia. Wind is likely to play a part in moving winged aphids from south to north. The most northerly detection (as of January 2017) is the NSW Riverina.
This powerpoint presentation provides a brief overview of how to detect RWA in fields, provisional economic thresholds, and management considerations in the event of an outbreak.