1 Choose a station with Crop/Disease license activated.
2 Click on the Disease model icon on the left side of FieldClimate.
3 Choose the Disease model for the crop of interest.
4 Choose the time period to display the disease model. 14 to 30 days works best.
5 Use the ? on the far right to provide a description of the models operation.
6 • Conditions for grey leaf spot are highest when temperatures are between 22°C and 30°C, and when relative humidity is equal to or greater than 90%. The risk range from 0 (no risk) to 100% (very high risk).
• Synchrony of disease risk to crop to the growth stage V4 and V12 is very important. Use the growing degree day calculator in FieldClimate
• If lesions have reached the ear leaf or higher during the two weeks before and after tasseling, significant yield loss could occur if weather conditions are conducive
• Symptoms on the plants will occur in future after 100% infection has occurred, weather dependent