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Small Grains Disease Forecasting Model Website Activated (05/21/15)

After several days of precipitation and with cool weather in the forecast, this is a good time to start scouting winter wheat and spring wheat for fungal leaf spots.

Small Grains Disease Forecasting Model Website Activated

 ppth.af.sgdfmodel

Website: http://www.ag.ndsu.edu/cropdisease/

After several days of precipitation and with cool weather in the forecast, this is a good time to start scouting winter wheat and spring wheat for fungal leaf spots. One tool that can be used to assess the likelihood of foliar disease development is the NDSU Small Grains Disease Forecasting Model. The model combines specific weather parameters (temperature, relative humidity, and prolonged leaf wetness) and indicates the likelihood of pathogen infection events in wheat fields. The foliar disease model is designated for use AFTER you have detected either tan spot, Septoria, or leaf rust in your fields. For more detailed information on how to use the foliar disease model, select “Small Grain Diseases Explained” on the home page.

Also, as the small grain crops start to flower, the Disease Forecasting Model can be used for Fusarium Head Blight (Scab) risk. More information for this aspect of the model will be discussed later-on in the growing season.

Andrew Friskop

Extension Plant Pathology, Cereal Crops

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