By Scout Nelson
Fusarium head blight (FHB) risk is increasing across Minnesota as warm, humid weather and high dew points continue to create favorable conditions for disease development. Current conditions are expected to keep FHB infection risk at moderate to high levels, depending on crop variety susceptibility.
Agronomists note that localized weather data from NDAWN and MAWN stations may provide a more accurate assessment of disease risk than broader national models, especially in areas where rainfall has been uneven.
Growers are being advised to closely monitor crop development and apply fungicides at the recommended growth stages. Oat producers who have not treated for crown rust should consider a fungicide application at full heading. Premium fungicides may also help suppress FHB in fields where corn was previously grown.
For spring barley, fungicide applications at full heading can help manage FHB and control net blotch. Spring wheat producers are encouraged to apply fungicides at the beginning of anthesis, particularly in fields with susceptible varieties or where corn was the previous crop.
Crop scouts are also reporting an increase in Bacterial Leaf Streak (BLS) across Minnesota, a trend consistent with recent weather patterns and crop growth conditions.
Photo Credit: gettyimages-ygrek
Categories: Minnesota, Crops, Weather