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Wheat and barley disease management in 2011. Yellow spot and head diseases in wheat. Strategies and products for barley leaf rust

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Epidemics of yellow spot develop when susceptible varieties are sown into infected stubble where frequent and extended periods of wet weather prevail at temperatures between 10 and 30 C. Optimum temperatures are between 15 and 25 C... Given that timing is the most important factor in fungicidal control, the onus is on growers and agronomists to monitor crops closely... In 2010, the disease was observed causing a leaf blight in barley and in durum wheat in the field...