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 • Model displays the general risk of aphid propagation.
• Risk is shown between 0 to 100%.
• Low risk is characterized by periods of cool temperatures and dry conditions.
• Warm and humid periods favor development and are risky periods (80 to 100%)
• Very humid or long leaf wetness periods can promote fungal death in aphids, helping control the population. 