Abstract Making decisions about the best production practices, their timing and integration of options, has become very complex.
Growers can use help-guides to effectively consider all of the options.
Expert systems tied together on the basis of vegetative and fruit development stage can help to clarify and suggest timely options, provide production practices record keeping and free up time for other management decisions. Several units for the eventual integrated decision support system for citrus were developed to the stage of functioning prototypes during this first year of work. Develop and demonstrate a Melanose and Greasy Spot Control Decision System. Develop a framework for the determination of timing and options among production practices in relation to citrus growth events to facilitate management decisions. Develop a tree size and yield diagnostic system to be used as a baseline for comparing tree growth and yield.