Small Grain Disease Forecasting Model



July 24, 2014

The IPM survey scouts identified foliar diseases in nearly every field visited. Bacterial leaf streak is starting to be noticed on flag leaves in several areas of ND with higher incidence reports in northcentral and northeast portions of the state. Scab has been found in most winter wheat fields. However, growers and Extension Area Specialists have indicated that timely fungicide applications at early-flowering have reduced scab incidence levels. Now is a good time to scout for scab in spring wheat approaching the soft dough stage. More IPM survey information can be found at IPM Survey

Last week the hot, dry and windy weather lessened scab risk as most of the state had a low to moderate risk of scab developing in very susceptible varieties. However, recent rain events will most likely increase the risk of scab in flowering small grains. Monitor the growth stages in your fields and use the scab forecasting models to help decide if a fungicide application is needed.

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

Away from your computer?

Current forecasts are also available by telephone. Call toll free for a recorded update from any touch-tone phone in MN or ND

(Service not available in SD and Man)


(231-6601 in Fargo area)

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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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