Severity of disease in wheat crops depends on the presence of inoculum carried over from last season, favourability of seasonal conditions, pathotype virulence and varietal susceptibility. In planning which variety to grow or how to manage the variety that has been chosen, it is important to review the current disease resistance ratings. Being aware of disease risks to a crop allows for appropriate planning and proactive management to reduce risk of yield losses.
It is important to note that after the discovery of the new pathotypes for leaf rust in Western Australia in 2013 and 2015, some wheat varieties have had their leaf rust resistance ratings altered. The attached documents provide the updated ratings.
We acknowledge the funding provided by the Grains Research and Development Corporation and Department of Agriculture and Food, Western Australia.