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Low risk predicted for stripe rust in 2014

 


Stripe rust will not likely not be bad for this year’s winter wheat crop, according to WSU Research Plant Pathologist, Xianming Chen.

Based on disease prediction models, Chen reports that highly susceptible varieties are expected to have approximately 22 percnet yield loss, which is the low end of what is termed the moderate epidemic range. Anything under 20 percent is considered low and 40 to 60 percent is considered severe. It is the lowest level of forecasted incidence of stripe rust since the models were first used in 2009.

Last year the models predicted 37 percent loss. Plot measurements in variety tests and fungicide experiments showed 38 and 42 percent actual losses, respectively...



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