Evaluate and update a preliminary forecasting system for predicting infections by Bremia lactucae in California lettuce fields.|
Analyze regional weather patterns in the Pajaro, Salinas, and Santa Maria Valleys as a basis for determining the required density of weather stations for downy mildew forecasting.
Develop a meteorological forecast for the duration of leaf wetness in the morning, the most important microclimatic variable for downy mildew infections in California lettuce fields.
Evaluate the updated forecasting system for accuracy of prediction, effectiveness of downy mildew control, reduction in fungicide use, and practical feasibility in growers' fields.
Implement a network of electronic weather stations for downy mildew forecasting in the Pajaro, Salinas, and Santa Maria Valleys.