The CIMMYT Australia ICARDA Germplasm Exchange (CAIGE) program coordinates the selection, importation through the Australian Grains Genebank (AGG), and evaluation of bread wheat (Triticum aestivum), durum wheat (Triticum durum) and barley (Hordeum vulgare) germplasm across Australian growing environments. The program also manages the associated data and information that support effective use of these resources. Funded by the Grains Research and Development Corporation (GRDC), CAIGE is a multi-stakeholder initiative that brings together national and international collaborators to strengthen access to globally important germplasm for Australian grain research and breeding. This disease core set was developed through analysis of foliar disease rating scores collected across multiple years.