Small Grain Disease Forecasting Model



July 7, 2015 Stripe rust has moved onto flag leaves of spring wheat. Fungicides that were applied at flag leaf timing have been effective in managing this disease. Stripe rust will continue until consecutive daytime temperatures above 90 and/or nighttime temperatures above 65 occur. Other diseases that have been reported included bacterial leaf streak in wheat and barley. Remember fungicides do not have adequate activity on bacterial diseases. Most of the wheat is past flowering in southern North Dakota and several fields received a fungicide application. Wheat in the northern tier of the state is at heading or flowering and fungicides should be considered in areas of elevated scab risk. Most areas along the Canadian border have an elevated risk if a susceptible variety was grown. Continue to monitor the weather and wheat growth stages in your fields.

If you have any questions, contact the Department of Plant Pathology, NDSU, Fargo, ND 58105 (701-231-7627).

Dr. Andrew Friskop, Cereal Extension Pathologist
Phone # 701-231-7627

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Small Grain Disease Forecasting Model

Close up of wheat field bannerThe NDSU Small Grains Disease Forecasting Model assists producers in estimating the possibility of disease in their crops and gives recommendations as to possible preventative applications and times for these applications. This is done in conjunction with NDAWN weather station locations within North Dakota and sections of western Minnesota and eastern Montana.

As easy as 1-2-3

NDAWN logo
1.  Click on the NDAWN station location nearest you
  - see NDAWN Home Page for a station location map
2.  Click the button representing the growth stage of your crop
  - see the growth stage information for explanations of growth stages
  - click on the small image to see a larger image
  - select the Flowering growth stage to access the scab forecast
  - or see NDAWN's estimated growth stage for your crop based on planting date.
3.  Click "Get Forecast".

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