Establishment and application of diagnosis expert system of tobacco disease.

We proposed 25 query symptoms,including root,stem,leaf,whole plant and growth period from more than 80 tobacco diseases.Based on Lucid3,a multi-way expert system for identification and diagnosis,we established a diagnosis expert system of tobacco disease,which integrated lots of multimedia,such as pictures and text description.This strengthened the confirmed diagnosis function.It can run on a CD locally or on-line remotely.