Yellow rust of barley is an invasive disease that was found in the past 10 years in North America. The causal agent, f. sp. , was introduced into Colombia, South America, from Europe in 1975. It spread to all major barley-producing areas in South America by 1982. In 1988 it was found in Mexico and in 1991 in Texas. Since then it has been found in all major barley-producing areas of the American West. Originally described as race (R) 24, barley yellow rust in North America is now known to be a very heterogeneous population. Resistance has been identified, evaluated, and is being introduced into commercial malting and other barley cultivars. Cultural and chemical controls are effective and available. An integrated approach using general field resistance and other tactics is described for sustainable management of barley yellow rust.


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  • Article Type: Review Article
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