DISEASE DETECTION EXPERT SYSTEM IN WATERMELON PLANTS USING CERTAINTY FACTOR METHOD BASED ON MOBILE

Watermelon is one of the fruit commodities currently being developed in West Nusa Tenggara by making Central Lombok Regency a production center. The problems that farmers often face in conducting watermelon farming besides pest attacks, watermelon plants are also often affected by diseases which cause the plants to wilt then dry, white spots on the fruit flesh, growth of leaves and small fruit so that it has an impact on decreased productivity caused by a lack of knowledge farmers in recognizing and dealing with diseases in watermelon plants so that they are often mishandled. This research was conducted to produce an expert system that can detect diseases in watermelon plants and provide solutions for handling them so that watermelon farmers can make prevention and handling efforts quickly before the disease spreads to many other watermelon plants. This expert system was built using the mobile-based Certainty Factor Method with the Android operating system so that it can be downloaded on the Playstore by watermelon farmers or anyone who needs it so. That it is hoped that it can help farmers detect diseases in watermelon plants and provide appropriate handling steps based on related theory.