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Stage Set For Wheat Scab

Winter wheat in the south central and south east North Dakota is ripe for infection from Fusariam head blight.

Winter wheat fields are fast approaching or are in early flowering stages and recent abundant rainfall sets the stage for spread of the disease commonly known as scab, says Marcia McMullen, NDSU extension plant pathologist.

Two forecasting web sites indicate high risk of Fusarium head blight for wheat currently in the flowering stage in south central and south east areas of North Dakota.

One Web site indicating risk is the NDSU small grain disease forecasting site,

The second Web site indicating risk contains risk map tools for multiple states is (Pick winter wheat and then your state.)

If you have a flowering winter wheat crop that hasn’t drowned out, you should be using a triazole fungicide such as propiconazole, tebuconazole, or the combination of prothioconazole and tebuconazole, at this time, McMullen says.

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