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Stripe Rust Continues to Develop in South Dakota Winter Wheat Fields

Two winter wheat fields in Gregory county were found with severe stripe rust. Several fields scouted along highway 18 in Turner, Hutchinson, Douglas, Charles Mix, Gregory and Tripp were found with stripe rust at low severity.

Wheat is mostly between heading and flowering, a yield determinant growth stage. With the current wet weather conditions and more rain in the forecast, stripe rust may develop to reach severe levels.

Apply fungicides to protect and prevent

A fungicide application is recommended to protect the flag leaf from stripe rust and other fungal pathogens. Several fungicides on market are effective in controlling stripe rust. For a list see the recommended fungicides publication by the NCERA 184 working group.

Source: Emmanuel Byamukama, South Dakota State University

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