Day does not meet the splash requirement, then the infection score for that day is zero. Infection values for components IB and IH included daily temperatures (Tmin = 10 C, Topt = 27.5 C, and Tmax = 32 C). leaf wetness duration (Wmin = 12 h and Wmax = 24 h), and precipitation for splash (>2 mm). Cardinal temperatures wetness, and precipitation were obtained from published research (Alves and Fernandes 2006; Anderson et al. 1947; de Andrade Cardoso et al. 2008; Moss and Trevathan 1987). The NAPPFAST system processed daily weather data into infection potential using the TMRF function. Its built-in accumulate function was used to determine the number of days of a given event (i.e., infection or survival; Magarey et al. 2007). To create spatially explicit cumulative risk maps. Each grid cell was assigned a daily value for infection score between 0 (unfavorable). Values were accumulated over time to obtain the infection score for components IB and IH, and days with temperatures < 0 C for component OS. NAPPFAST generated three types of risk maps based on a specific model and specified dates: (i) average history maps showing the