Expert system for integrated plant protection in pepper (Capsicum annuun L.)

An expert system was developed with the aim of improving decision-making by pepper growers. Knowledge was obtained from the literature and from the experts. The knowledge was then represented in the knowledge base of the expert system in a series of IF-THEN rules. The system is supported by a data base containing information for the identification of 11 weeds, 20 insects, 14 diseases, three abiotic factors and control measures. The system is enhanced with 87 photos and drawings that assist the used in the identification process and choosing control measures. The expert system was evaluated with technicians and students. According to the validation results the system was considered very satisfactory with an average rank of 9.15 by technicians and of 8.95 by students with a statistic mode ranking 10 in all the cases. The program can be used as a decision tool for farmers and technicians and for educational purposes. (C) 2008 Elsevier Ltd. All rights reserved.