Growing resistant varieties is an important part of an integrated disease management plan for the control of barley leaf rust. This investment will characterise and isolate three major resistance genes that have not yet been deployed in barley varieties by barley breeders in Australia and which are effective against all known Australian pathotypes of barley leaf rust (Rph7, Rph13, Rph15) , and five new durable minor Adult Plant Resistance (APR) genes. Diagnostic DNA based markers for each resistance gene will allow breeders to efficiently build combinations of resistance in new improved cultivars for delivery to growers.