Australian scientists have confirmed the Russian Wheat Aphid (RWA) now established in parts of the nation’s south-eastern cropping regions is a single biotype. This new knowledge, achieved through research investments by the Grains Research and Development Corporation (GRDC), will underpin ongoing and future research efforts aimed at combating the cereal crop pest which was first detected in SA in 2016. Experiments to identify the biotype or biotypes of the aphid in Australia and possible origin of the incursion have been led by entomologists Maarten van Helden and Greg Baker from the SA Research and Development Institute (SARDI), a division of Primary Industries and Regions SA.