Stripe ruse in Nebraska increasing, experts recommend fungicide treatment
Stripe rust has significantly increased in all wheat growing areas in Nebraska, and it is recommended that wheat be treated with a fungicide.
If the incidence or severity is less than 50 percent, spraying a fungicide will significantly reduce yield loss due to rust.
For wheat that is fully headed or flowering, apply a triazole fungicide. If wheat is not headed or is just beginning to head, any fungicide labeled for rust control on wheat will work.
It is too late to spray wheat fields that are well past the flowering growth stage or those where flag leaves are already heavily infected by stripe rust.
Although warmer daytime temperatures can slow down stripe rust development, cool nighttime temperatures coupled with dew formation and intermittent rain are favorable for development and spread of stripe rust. Therefore, do not rely on warmer temperatures alone to slow down stripe rust. It is recommended that wheat be treated with a fungicide to protect the flag leaf.
— University of Nebraska Lincoln panhandle research and extension center
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